问题[iwlwifi](ubuntu)

更新后重新启动后，WI-FI 和蓝牙停止工作。该设置显示它无法找到适配器，即使相同的桌面通过双启动在 Windows 上运行良好。我有内置 Intel AX200 的 MSI MEG X570 ACE。

当我重新启动并从菜单中选择高级选项时，如果我选择 5.11.0-25 或 5.11.0-22（通用或恢复） - 仍然没有显示 WI-FI 和蓝牙。如果我选择 5.8.0-43，它会像以前一样工作。

这是一个错误吗？有修复或解决方法吗？

我有固件@ /lib/firmware/iwlwifi-cc-a0-46.ucode

modinfo iwlwifi
modinfo: ERROR: Module iwlwifi not found.

sudo cat /var/lib/NetworkManager/NetworkManager.state
[main]
NetworkingEnabled=true
WirelessEnabled=false
WWANEnabled=true

lspci -vnn | grep 'Network'
26:00.0 Ethernet controller [0200]: Intel Corporation I211 Gigabit Network Connection [8086:1539] (rev 03)
    Subsystem: Micro-Star International Co., Ltd. [MSI] I211 Gigabit Network Connection [1462:7c35]
28:00.0 Network controller [0280]: Intel Corporation Wi-Fi 6 AX200 [8086:2723] (rev 1a)

rfkill list

什么都不返回

sudo dpkg -s linux-modules-extra-$(uname -r) | grep Status
Status: install ok config-files

谢谢，

H·萨尔卡

我刚刚打开我的笔记本电脑，我的 wifi 不可用！我看不到我的 wifi 设置并将其打开/关闭检查此屏幕截图和此屏幕截图。我已经在 Windows 10 旁边安装了我的 ubuntu。我第一次使用 ubuntu 时，我的 wifi 运行得很好。我使用的是Ubuntu 20.04.2 LTS，我的内核版本是Linux 5.8.0-48-generic，已更新到最新版本。我确实搜索了很多次，但找不到任何解决此问题的方法。

我通过以下脚本收集了一些关于我的 Wi-Fi 的信息，并将输出粘贴到此处：

########## wireless info START ##########

Report from: 13 Apr 2021 12:44 +0430 +0430

Booted last: 13 Apr 2021 00:00 +0430 +0430

Script from: 25 Jan 2020 03:34 UTC +0000

##### release ###########################

Distributor ID: Ubuntu
Description:    Ubuntu 20.04.2 LTS
Release:    20.04
Codename:   focal

##### kernel ############################

Linux 5.8.0-48-generic #54~20.04.1-Ubuntu SMP Sat Mar 20 13:40:25 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

##### desktop ###########################

Ubuntu

##### lspci #############################

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
    Subsystem: ASUSTeK Computer Inc. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1043:200f]
    Kernel driver in use: r8169

04:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78)
    Subsystem: Intel Corporation Dual Band Wireless-AC 8265 [8086:0010]
    Kernel modules: iwlwifi, wl

##### lsusb #############################

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0b05:1869 ASUSTek Computer, Inc. ITE Device(8910)
Bus 001 Device 004: ID 13d3:5666 IMC Networks USB2.0 HD UVC WebCam
Bus 001 Device 003: ID 8087:0a2b Intel Corp. 
Bus 001 Device 002: ID 0b05:185d ASUSTek Computer, Inc. ASUS GT300 GAMING MOUSE
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

##### PCMCIA card info ##################

##### rfkill ############################

0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

##### secure boot #######################

EFI variables are not supported on this system

##### lsmod #############################

iwlwifi               352256  0
wl                   6455296  0
cfg80211              778240  2 wl,iwlwifi
asus_nb_wmi            32768  0
mxm_wmi                16384  0
asus_wmi               36864  2 asus_nb_wmi,hid_asus
sparse_keymap          16384  1 asus_wmi
wmi                    32768  2 asus_wmi,mxm_wmi
video                  49152  1 asus_wmi

##### interfaces ########################

##### ifconfig ##########################

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback <MAC address> brd <MAC address>
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether <MAC 'enp2s0' [IF1]> brd <MAC address>
    inet 192.168.1.107/24 brd 192.168.1.255 scope global dynamic noprefixroute enp2s0
       valid_lft 256142sec preferred_lft 256142sec
    inet6 fe80::efe1:cc81:c33a:50cb/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

##### iwconfig ##########################

lo        no wireless extensions.

enp2s0    no wireless extensions.

##### route #############################

default via 192.168.1.1 dev enp2s0 proto dhcp metric 100 
169.254.0.0/16 dev enp2s0 scope link metric 1000 
192.168.1.0/24 dev enp2s0 proto kernel scope link src 192.168.1.107 metric 100 

##### resolv.conf #######################

[777 root '/etc/resolv.conf' -> '../run/systemd/resolve/stub-resolv.conf']

nameserver 127.0.0.53
options edns0 trust-ad

##### network managers ##################

Installed:

    NetworkManager

Running:

root         932       1  0 11:48 ?        00:00:02 /usr/sbin/NetworkManager --no-daemon

##### NetworkManager info ###############

GENERAL.DEVICE:                         enp2s0
GENERAL.TYPE:                           ethernet
GENERAL.NM-TYPE:                        NMDeviceEthernet
GENERAL.DBUS-PATH:                      /org/freedesktop/NetworkManager/Devices/2
GENERAL.VENDOR:                         Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT:                        RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
GENERAL.DRIVER:                         r8169
GENERAL.DRIVER-VERSION:                 5.8.0-48-generic
GENERAL.FIRMWARE-VERSION:               --
GENERAL.HWADDR:                         <MAC 'enp2s0' [IF1]>
GENERAL.MTU:                            1500
GENERAL.STATE:                          100 (connected)
GENERAL.REASON:                         0 (No reason given)
GENERAL.IP4-CONNECTIVITY:               4 (full)
GENERAL.IP6-CONNECTIVITY:               3 (limited)
GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/net/enp2s0
GENERAL.IP-IFACE:                       enp2s0
GENERAL.IS-SOFTWARE:                    no
GENERAL.NM-MANAGED:                     yes
GENERAL.AUTOCONNECT:                    yes
GENERAL.FIRMWARE-MISSING:               no
GENERAL.NM-PLUGIN-MISSING:              no
GENERAL.PHYS-PORT-ID:                   --
GENERAL.CONNECTION:                     Wired connection 1
GENERAL.CON-UUID:                       84a732b3-4e01-3cca-938e-104fbbdfa6c9
GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/ActiveConnection/2
GENERAL.METERED:                        no (guessed)
CAPABILITIES.CARRIER-DETECT:            yes
CAPABILITIES.SPEED:                     100 Mb/s
CAPABILITIES.IS-SOFTWARE:               no
CAPABILITIES.SRIOV:                     no
INTERFACE-FLAGS.UP:                     yes
INTERFACE-FLAGS.LOWER-UP:               yes
INTERFACE-FLAGS.CARRIER:                yes
WIRED-PROPERTIES.CARRIER:               on
IP4.ADDRESS[1]:                         192.168.1.107/24
IP4.GATEWAY:                            192.168.1.1
IP4.ROUTE[1]:                           dst = 0.0.0.0/0, nh = 192.168.1.1, mt = 100
IP4.ROUTE[2]:                           dst = 192.168.1.0/24, nh = 0.0.0.0, mt = 100
IP4.ROUTE[3]:                           dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]:                             192.168.1.1
DHCP4.OPTION[1]:                        dhcp_lease_time = 259200
DHCP4.OPTION[2]:                        domain_name = 
DHCP4.OPTION[3]:                        domain_name_servers = 192.168.1.1
DHCP4.OPTION[4]:                        expiry = 1618557803
DHCP4.OPTION[5]:                        host_name = dhcppc7
DHCP4.OPTION[6]:                        ip_address = 192.168.1.107
DHCP4.OPTION[7]:                        next_server = 192.168.1.1
DHCP4.OPTION[8]:                        requested_broadcast_address = 1
DHCP4.OPTION[9]:                        requested_domain_name = 1
DHCP4.OPTION[10]:                       requested_domain_name_servers = 1
DHCP4.OPTION[11]:                       requested_domain_search = 1
DHCP4.OPTION[12]:                       requested_host_name = 1
DHCP4.OPTION[13]:                       requested_interface_mtu = 1
DHCP4.OPTION[14]:                       requested_ms_classless_static_routes = 1
DHCP4.OPTION[15]:                       requested_nis_domain = 1
DHCP4.OPTION[16]:                       requested_nis_servers = 1
DHCP4.OPTION[17]:                       requested_ntp_servers = 1
DHCP4.OPTION[18]:                       requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[19]:                       requested_root_path = 1
DHCP4.OPTION[20]:                       requested_routers = 1
DHCP4.OPTION[21]:                       requested_static_routes = 1
DHCP4.OPTION[22]:                       requested_subnet_mask = 1
DHCP4.OPTION[23]:                       requested_time_offset = 1
DHCP4.OPTION[24]:                       requested_wpad = 1
DHCP4.OPTION[25]:                       routers = 192.168.1.1
DHCP4.OPTION[26]:                       subnet_mask = 255.255.255.0
IP6.ADDRESS[1]:                         fe80::efe1:cc81:c33a:50cb/64
IP6.GATEWAY:                            --
IP6.ROUTE[1]:                           dst = fe80::/64, nh = ::, mt = 100
IP6.ROUTE[2]:                           dst = ff00::/8, nh = ::, mt = 256, table=255
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/5
CONNECTIONS.AVAILABLE-CONNECTIONS[1]:   84a732b3-4e01-3cca-938e-104fbbdfa6c9 | Wired connection 1

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true

##### NetworkManager config #############

[[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]]
[connection]
wifi.powersave = 3

[[/etc/NetworkManager/NetworkManager.conf]]
[main]
plugins=ifupdown,keyfile
[ifupdown]
managed=false
[device]
wifi.scan-rand-mac-address=no

[[/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf]]
[main]
dns=systemd-resolved

[[/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf]]
[keyfile]
unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma

[[/usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf]]
[connectivity]
uri=http://connectivity-check.ubuntu.com/

[[/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf]]
[device-mac-addr-change-wifi]
match-device=driver:rtl8723bs,driver:rtl8189es,driver:r8188eu,driver:8188eu,driver:eagle_sdio,driver:wl
wifi.scan-rand-mac-address=no

##### NetworkManager profiles ###########

[[/etc/NetworkManager/system-connections/D-LINK.nmconnection]] (600 root)
[connection] id=D-LINK | type=wifi | permissions=
[wifi] mac-address-blacklist= | ssid=D-LINK
[ipv4] method=auto
[ipv6] method=auto

[[/etc/NetworkManager/system-connections/Bobby.nmconnection]] (600 root)
[connection] id=Bobby | type=wifi | permissions=
[wifi] mac-address-blacklist= | ssid=Bobby
[ipv4] method=auto
[ipv6] method=auto

[[/etc/NetworkManager/system-connections/Babak’s iPhone.nmconnection]] (600 root)
[connection] id=Babak’s iPhone | type=wifi | permissions=
[wifi] mac-address-blacklist= | ssid=66;97;98;97;107;226;128;153;115;32;105;80;104;111;110;101;
[ipv4] method=auto
[ipv6] method=auto

##### Netplan config ####################

[/etc/netplan/01-network-manager-all.yaml]
network:
  version: 2
  renderer: NetworkManager

##### iw reg get ########################

Region: Asia/Tehran (based on set time zone)

global
country 00: DFS-UNSET
    (2402 - 2472 @ 40), (N/A, 20), (N/A)
    (2457 - 2482 @ 20), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
    (2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, PASSIVE-SCAN
    (5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
    (5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN
    (5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, PASSIVE-SCAN
    (5735 - 5835 @ 80), (N/A, 20), (N/A), PASSIVE-SCAN
    (57240 - 63720 @ 2160), (N/A, 0), (N/A)

##### iwlist channels ###################

lo        no frequency information.

enp2s0    no frequency information.

##### iwlist scan #######################

lo        Interface doesn't support scanning.

enp2s0    Interface doesn't support scanning.

##### module infos ######################

[iwlwifi]
filename:       /lib/modules/5.8.0-48-generic/kernel/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko
license:        GPL
description:    Intel(R) Wireless WiFi driver for Linux
depends:        cfg80211
retpoline:      Y
intree:         Y
name:           iwlwifi
vermagic:       5.8.0-48-generic SMP mod_unload modversions 
parm:           swcrypto:using crypto in software (default 0 [hardware]) (int)
parm:           11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
parm:           amsdu_size:amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, 4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0) (int)
parm:           fw_restart:restart firmware in case of error (default true) (bool)
parm:           nvm_file:NVM file name (charp)
parm:           uapsd_disable:disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3) (uint)
parm:           enable_ini:Enable debug INI TLV FW debug infrastructure (default: true (bool)
parm:           bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
parm:           led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
parm:           power_save:enable WiFi power management (default: disable) (bool)
parm:           power_level:default power save level (range from 1 - 5, default: 1) (int)
parm:           disable_11ac:Disable VHT capabilities (default: false) (bool)
parm:           remove_when_gone:Remove dev from PCIe bus if it is deemed inaccessible (default: false) (bool)
parm:           disable_11ax:Disable HE capabilities (default: false) (bool)

[wl]
filename:       /lib/modules/5.8.0-48-generic/updates/dkms/wl.ko
license:        MIXED/Proprietary
depends:        cfg80211
retpoline:      Y
name:           wl
vermagic:       5.8.0-48-generic SMP mod_unload modversions 
parm:           passivemode:int
parm:           wl_txq_thresh:int
parm:           oneonly:int
parm:           piomode:int
parm:           instance_base:int
parm:           nompc:int
parm:           intf_name:string

[cfg80211]
filename:       /lib/modules/5.8.0-48-generic/kernel/net/wireless/cfg80211.ko
description:    wireless configuration support
license:        GPL
depends:        
retpoline:      Y
intree:         Y
name:           cfg80211
vermagic:       5.8.0-48-generic SMP mod_unload modversions 
parm:           bss_entries_limit:limit to number of scan BSS entries (per wiphy, default 1000) (int)
parm:           ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm:           cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

##### module parameters #################

[iwlwifi]
11n_disable: 0
amsdu_size: 0
bt_coex_active: Y
disable_11ac: N
disable_11ax: N
enable_ini: Y
fw_restart: Y
led_mode: 0
nvm_file: (null)
power_level: 0
power_save: N
remove_when_gone: N
swcrypto: 0
uapsd_disable: 3

[cfg80211]
bss_entries_limit: 1000
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00

##### /etc/modules ######################

##### modprobe options ##################

[/etc/modprobe.d/amd64-microcode-blacklist.conf]
blacklist microcode

[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci

[/etc/modprobe.d/blacklist-bcm43.conf]
blacklist b43
blacklist b43legacy
blacklist ssb
blacklist bcm43xx
blacklist brcm80211
blacklist brcmfmac
blacklist brcmsmac
blacklist bcma

[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac

[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off

[/etc/modprobe.d/intel-microcode-blacklist.conf]
blacklist microcode

[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211

##### rc.local ##########################

grep: /etc/rc.local: No such file or directory

##### pm-utils ##########################

##### udev rules ########################

##### dmesg #############################

[   36.243679] r8169 0000:02:00.0 enp2s0: Link is Down
[  149.936075] r8169 0000:02:00.0 enp2s0: Link is Up - 100Mbps/Full - flow control off
[  149.936097] IPv6: ADDRCONF(NETDEV_CHANGE): enp2s0: link becomes ready
[  236.826609] r8169 0000:02:00.0 enp2s0: Link is Down
[  320.308708] iwlwifi: probe of 0000:04:00.0 failed with error -110
[  342.603789] r8169 0000:02:00.0 enp2s0: Link is Up - 100Mbps/Full - flow control off
[ 1130.713297] iwlwifi: probe of 0000:04:00.0 failed with error -110

########## wireless info END ############

这也是我的“sudo lshw -c network”：

  *-network                 
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: enp2s0
       version: 15
       serial: 2c:fd:a1:af:ed:89
       size: 100Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=5.8.0-48-generic duplex=full firmware=rtl8168h-2_0.0.2 02/26/15 ip=192.168.1.107 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
       resources: irq:16 ioport:d000(size=256) memory:df304000-df304fff memory:df300000-df303fff
  *-network UNCLAIMED
       description: Network controller
       product: Wireless 8265 / 8275
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:04:00.0
       version: 78
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress cap_list
       configuration: latency=0
       resources: memory:df100000-df101fff

如果有人可以帮助我，我将不胜感激。

最近一次软件更新后，我立即无法连接到 wifi。连接尝试会收到消息“无线网络需要身份验证”。验证详细信息已正确输入。

问题在于任何 wifi 连接。其他设备连接到相同的 wifi 连接。

我在戴尔 XPS13 上运行 Ubuntu 18.04.5。wifi 驱动程序是“backport-iwlwifi”。我试过重新安装这些。

我查看了其他问题，但没有找到有效的答案。

我使用 (k)ubuntu 工作，现在我必须每天使用视频通话应用程序，我注意到我的集成麦克风质量不佳。我知道我的蓝牙耳机可以用作耳机，因为我在手机上将它用作蓝牙耳机，它甚至在音量混合器中显示为耳机。当我将耳机连接到我的电脑时，我可以使用 a2dp（立体声播放），但不能使用我的麦克风。当我尝试在 pulseaudiovolumecontrol 中切换到 hsp/hfp 时，我可以听到我自己的声音在我的耳机中回响，但我再也听不到来自我的电脑的任何声音。但是，我可以在音量管理器中看到麦克风现在可用（尽管它不起作用）。以下是有关我的硬件的一些详细信息：

根据 lspci，我的 wifi/bt 卡：

3b:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)

PACMD 输出：

    index: 2
        name: <bluez_card.FC_58_FA_C4_9D_17>
        driver: <module-bluez5-device.c>
        owner module: 28
        properties:
                device.description = "JLab BT"
                device.string = "FC:58:FA:C4:9D:17"
                device.api = "bluez"
                device.class = "sound"
                device.bus = "bluetooth"
                device.form_factor = "headset"
                bluez.path = "/org/bluez/hci0/dev_FC_58_FA_C4_9D_17"
                bluez.class = "0x260404"
                bluez.alias = "JLab BT"
                device.icon_name = "audio-headset-bluetooth"
                device.intended_roles = "phone"
        profiles:
                headset_head_unit: Headset Head Unit (HSP/HFP) (priority 30, available: unknown)
                a2dp_sink: High Fidelity Playback (A2DP Sink) (priority 40, available: yes)
                off: Off (priority 0, available: yes)
        active profile: <a2dp_sink>
        sinks:
                bluez_sink.FC_58_FA_C4_9D_17.a2dp_sink/#8: JLab BT
        sources:
                bluez_sink.FC_58_FA_C4_9D_17.a2dp_sink.monitor/#12: Monitor of JLab BT
        ports:
                headset-output: Headset (priority 0, latency offset 0 usec, available: yes)
                        properties:

                headset-input: Headset (priority 0, latency offset 0 usec, available: unknown)
                        properties:

现在还查看我的日志以查找与蓝牙相关的错误，我看到一些引起问题的行：

Unable to get io data for Headset Voice gateway: getpeername: Transport endpoint is not connected (107)
Failed to release transport 

/org/bluez/hci0/dev_FC_58_FA_C4_9D_17/sep1/fd7: Method "Release" with signature "" on interface "org.bluez.MediaTransport1" doesn't exist

Bluetooth: hci0: Failed to send Intel_Write_DDC (-22)

更新：我尝试更新到 groovy gorilla，因为我认为它可以解决我在https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1871794中所述的问题， 但它没有解决，所以我将标题更新为 20.10

更新到 groovy 之后，内核在某个时候更新了，现在我必须启动到 5.8.0-25-generic 才能使用我的无线。以下是两者上 lshw -C network 的输出。这是最新内核中缺少正确固件的错误吗？还是以某种方式无法使用最新固件声明接口？过去一个月似乎在 linux-firmware 软件包上做了一些工作https://git.kernel.org/pub/scm/linux...962e5c7316924b 我不能确定这是否是问题所在尽管。还有什么可以做或检查的吗？

固件似乎存在

/lib/firmware$ ll iwlwifi-8*
-rw-r--r-- 1 root root 1745176 Oct 28 13:51 iwlwifi-8000C-13.ucode
-rw-r--r-- 1 root root 2351636 Oct 28 13:51 iwlwifi-8000C-16.ucode
-rw-r--r-- 1 root root 2394060 Oct 28 13:51 iwlwifi-8000C-21.ucode
-rw-r--r-- 1 root root 2120860 Oct 28 13:51 iwlwifi-8000C-22.ucode
-rw-r--r-- 1 root root 2227284 Oct 28 13:51 iwlwifi-8000C-27.ucode
-rw-r--r-- 1 root root 2310116 Oct 28 13:51 iwlwifi-8000C-31.ucode
-rw-r--r-- 1 root root 2448976 Oct 28 13:51 iwlwifi-8000C-34.ucode
-rw-r--r-- 1 root root 2401100 Oct 28 13:51 iwlwifi-8000C-36.ucode
-rw-r--r-- 1 root root 2389968 Oct 28 13:51 iwlwifi-8265-21.ucode
-rw-r--r-- 1 root root 1811984 Oct 28 13:51 iwlwifi-8265-22.ucode
-rw-r--r-- 1 root root 2234528 Oct 28 13:51 iwlwifi-8265-27.ucode
-rw-r--r-- 1 root root 2307104 Oct 28 13:51 iwlwifi-8265-31.ucode
-rw-r--r-- 1 root root 2440780 Oct 28 13:51 iwlwifi-8265-34.ucode
-rw-r--r-- 1 root root 2409984 Oct 28 13:51 iwlwifi-8265-36.ucode

5.8.0-25-通用

$ sudo lshw -C network
  *-network                 
       description: Wireless interface
       product: Wireless 8260
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: wlp1s0
       version: 3a
       serial: 00:c2:c6:bc:22:58
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=5.8.0-25-generic firmware=36.79ff3ccf.0 8000C-36.ucode ip=192.168.50.229 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:133 memory:df100000-df101fff
  *-network
       description: Ethernet interface
       product: Ethernet Connection I219-V
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: eno1
       version: 21
       serial: b8:ae:ed:ea:91:9e
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.13-4 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:124 memory:df200000-df21ffff

5.8.0-26-通用

$ sudo lshw -C network
  *-network UNCLAIMED
       description: Network controller
       product: Wireless 8260
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 3a
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress cap_list
       configuration: latency=0
       resources: memory:df100000-df101fff
  *-network
       description: Ethernet interface
       product: Ethernet Connection I219-V
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: eno1
       version: 21
       serial: b8:ae:ed:ea:91:9e
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation

更新：我实际上注意到在 5.8.0-26-generic 中没有加载很多内核模块。也许这不是驱动程序/固件的问题。

5.8.0-26-通用 lsmod

$ lsmod
Module                  Size  Used by
rpcsec_gss_krb5        40960  0
auth_rpcgss           114688  1 rpcsec_gss_krb5
nfsv4                 745472  0
nfs                   344064  1 nfsv4
lockd                 106496  1 nfs
grace                  16384  1 lockd
fscache               376832  2 nfsv4,nfs
nf_tables             196608  0
nfnetlink              16384  1 nf_tables
binfmt_misc            24576  1
nls_iso8859_1          16384  1
kvm_intel             282624  0
kvm                   724992  1 kvm_intel
joydev                 28672  0
input_leds             16384  0
efi_pstore             16384  0
video                  49152  0
acpi_pad              184320  0
sch_fq_codel           20480  2
parport_pc             45056  0
ppdev                  24576  0
lp                     20480  0
parport                65536  3 parport_pc,lp,ppdev
sunrpc                495616  6 nfsv4,auth_rpcgss,lockd,rpcsec_gss_krb5,nfs
drm                   565248  0
ip_tables              32768  0
x_tables               45056  1 ip_tables
autofs4                45056  3
dm_crypt               49152  1
hid_generic            16384  0
usbhid                 57344  0
hid                   135168  2 usbhid,hid_generic
crct10dif_pclmul       16384  1
crc32_pclmul           16384  0
ghash_clmulni_intel    16384  0
aesni_intel           372736  2
crypto_simd            16384  1 aesni_intel
cryptd                 24576  3 crypto_simd,ghash_clmulni_intel
glue_helper            16384  1 aesni_intel
nvme                   45056  3
e1000e                274432  0
nvme_core             110592  5 nvme
xhci_pci               20480  0
xhci_pci_renesas       20480  1 xhci_pci

5.8.0-25-通用 lsmod

$ lsmod
Module                  Size  Used by
rfcomm                 81920  4
nf_tables             196608  0
nfnetlink              16384  1 nf_tables
nfsv3                  49152  1
nfs_acl                16384  1 nfsv3
rpcsec_gss_krb5        40960  0
auth_rpcgss           114688  1 rpcsec_gss_krb5
nfsv4                 745472  0
nfs                   344064  3 nfsv4,nfsv3
lockd                 106496  2 nfsv3,nfs
grace                  16384  1 lockd
fscache               376832  2 nfsv4,nfs
ccm                    20480  6
cmac                   16384  13
algif_hash             16384  6
algif_skcipher         16384  6
af_alg                 28672  26 algif_hash,algif_skcipher
bnep                   24576  2
binfmt_misc            24576  1
nls_iso8859_1          16384  1
intel_rapl_msr         20480  0
snd_hda_codec_hdmi     61440  1
mei_hdcp               24576  0
snd_hda_codec_realtek   131072  1
snd_hda_codec_generic    81920  1 snd_hda_codec_realtek
ledtrig_audio          16384  1 snd_hda_codec_generic
intel_rapl_common      28672  1 intel_rapl_msr
snd_hda_intel          53248  2
x86_pkg_temp_thermal    20480  0
intel_powerclamp       20480  0
snd_intel_dspcfg       24576  1 snd_hda_intel
snd_hda_codec         143360  4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_core           94208  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
coretemp               20480  0
snd_usb_audio         286720  1
snd_usbmidi_lib        36864  1 snd_usb_audio
snd_hwdep              20480  2 snd_usb_audio,snd_hda_codec
snd_seq_midi           20480  0
kvm_intel             282624  0
snd_seq_midi_event     16384  1 snd_seq_midi
kvm                   724992  1 kvm_intel
snd_rawmidi            36864  2 snd_seq_midi,snd_usbmidi_lib
rapl                   20480  0
intel_cstate           20480  0
iwlmvm                405504  0
mac80211              917504  1 iwlmvm
btusb                  57344  0
snd_seq                73728  2 snd_seq_midi,snd_seq_midi_event
btrtl                  24576  1 btusb
libarc4                16384  1 mac80211
btbcm                  16384  1 btusb
joydev                 28672  0
input_leds             16384  0
btintel                28672  1 btusb
snd_seq_device         16384  3 snd_seq,snd_seq_midi,snd_rawmidi
uvcvideo               98304  0
snd_pcm               118784  5 snd_hda_codec_hdmi,snd_hda_intel,snd_usb_audio,snd_hda_codec,snd_hda_core
bluetooth             602112  33 btrtl,btintel,btbcm,bnep,btusb,rfcomm
videobuf2_vmalloc      20480  1 uvcvideo
iwlwifi               364544  1 iwlmvm
videobuf2_memops       20480  1 videobuf2_vmalloc
videobuf2_v4l2         28672  1 uvcvideo
snd_timer              40960  2 snd_seq,snd_pcm
videobuf2_common       53248  2 videobuf2_v4l2,uvcvideo
cfg80211              782336  3 iwlmvm,iwlwifi,mac80211
efi_pstore             16384  0
intel_xhci_usb_role_switch    16384  0
ecdh_generic           16384  2 bluetooth
ecc                    32768  1 ecdh_generic
snd                    94208  19 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_usb_audio,snd_usbmidi_lib,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
ee1004                 20480  0
mei_me                 40960  1
roles                  16384  1 intel_xhci_usb_role_switch
soundcore              16384  1 snd
8250_dw                16384  0
intel_pch_thermal      16384  0
mei                   110592  3 mei_hdcp,mei_me
ir_rc6_decoder         20480  0
rc_rc6_mce             16384  0
ite_cir                28672  0
acpi_pad              184320  0
mac_hid                16384  0
sch_fq_codel           20480  2
videodev              245760  3 videobuf2_v4l2,uvcvideo,videobuf2_common
mc                     57344  5 videodev,snd_usb_audio,videobuf2_v4l2,uvcvideo,videobuf2_common
parport_pc             45056  0
ppdev                  24576  0
lp                     20480  0
parport                65536  3 parport_pc,lp,ppdev
sunrpc                495616  20 nfsv4,auth_rpcgss,lockd,nfsv3,rpcsec_gss_krb5,nfs_acl,nfs
ip_tables              32768  0
x_tables               45056  1 ip_tables
autofs4                45056  4
dm_crypt               49152  1
hid_generic            16384  0
usbhid                 57344  0
hid                   135168  2 usbhid,hid_generic
i915                 2273280  24
crct10dif_pclmul       16384  1
crc32_pclmul           16384  0
ghash_clmulni_intel    16384  0
i2c_algo_bit           16384  1 i915
aesni_intel           372736  25
drm_kms_helper        225280  1 i915
syscopyarea            16384  1 drm_kms_helper
sysfillrect            16384  1 drm_kms_helper
crypto_simd            16384  1 aesni_intel
sysimgblt              16384  1 drm_kms_helper
cryptd                 24576  9 crypto_simd,ghash_clmulni_intel
glue_helper            16384  1 aesni_intel
e1000e                274432  0
nvme                   45056  3
i2c_i801               32768  0
fb_sys_fops            16384  1 drm_kms_helper
cec                    53248  2 drm_kms_helper,i915
rc_core                53248  5 ite_cir,ir_rc6_decoder,rc_rc6_mce,cec
sdhci_pci              57344  0
i2c_smbus              20480  1 i2c_i801
intel_lpss_pci         20480  0
drm                   565248  8 drm_kms_helper,i915
cqhci                  32768  1 sdhci_pci
intel_lpss             16384  1 intel_lpss_pci
nvme_core             110592  5 nvme
sdhci                  69632  1 sdhci_pci
idma64                 20480  0
virt_dma               20480  1 idma64
xhci_pci               20480  0
xhci_pci_renesas       20480  1 xhci_pci
video                  49152  1 i915
pinctrl_sunrisepoint    28672  0
pinctrl_intel          28672  1 pinctrl_sunrisepoint

我有一台本地制造商 (Avell) 的 PC，它没有用于蓝牙/无线硬件的 Ubuntu 驱动程序。我尝试了你能想象到的一切，并在下面的帖子中彻底描述了所有尝试（我仍然认为它是可以修复的）：Ubuntu 18.04.3 蓝牙连接失败：org.bluez.Error.Failed（INTEL® DUAL BAND WIRELESS -AC 9560 + 蓝牙）

但是在与一些专家交谈后，我被告知我需要为这个硬件找到/编写一个驱动程序才能让它充分发挥作用。我做了一些研究，但我没有找到任何东西。

硬件是Intel Corporation Wireless-AC 9560，正如您在运行以下命令时所看到的那样lspci -knn | grep Net -A2; lsusb：

00:14.3 Network controller [0280]: Intel Corporation Wireless-AC 9560 [Jefferson Peak] [8086:a370] (rev 10)
    Subsystem: Intel Corporation Device [8086:0034]
    Kernel driver in use: iwlwifi
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 048d:ce00 Integrated Technology Express, Inc. 
Bus 001 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 006: ID 8087:0aaa Intel Corp. 
Bus 001 Device 005: ID 04f2:b65a Chicony Electronics Co., Ltd 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

我有高级编程经验，我愿意自学如何编写驱动程序，但我是一个软 Ubuntu 用户，从未编译过驱动程序或类似的东西。很感谢任何形式的帮助。

有用的信息：

1. lspci：

00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 07)
00:02.0 VGA compatible controller: Intel Corporation Device 3e9b
00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10)
00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10)
00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10)
00:14.3 Network controller: Intel Corporation Wireless-AC 9560 [Jefferson Peak] (rev 10)
00:15.0 Serial bus controller [0c80]: Intel Corporation Device a368 (rev 10)
00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10)
00:17.0 SATA controller: Intel Corporation Device a353 (rev 10)
00:1b.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port 21 (rev f0)
00:1d.0 PCI bridge: Intel Corporation Device a335 (rev f0)
00:1e.0 Communication controller: Intel Corporation Device a328 (rev 10)
00:1f.0 ISA bridge: Intel Corporation Device a30d (rev 10)
00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10)
00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller (rev 10)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1f91 (rev a1)
01:00.1 Audio device: NVIDIA Corporation Device 10fa (rev a1)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)

2. hciconfig -a

hci0:   Type: Primary  Bus: USB
    BD Address: 38:00:25:A1:F0:85  ACL MTU: 1021:4  SCO MTU: 96:6
    UP RUNNING PSCAN 
    RX bytes:11220 acl:83 sco:0 events:784 errors:0
    TX bytes:11968 acl:84 sco:0 commands:550 errors:0
    Features: 0xbf 0xfe 0x0f 0xfe 0xdb 0xff 0x7b 0x87
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
    Link policy: RSWITCH SNIFF 
    Link mode: SLAVE ACCEPT 
    Name: 'bonavel'
    Class: 0x1c010c
    Service Classes: Rendering, Capturing, Object Transfer
    Device Class: Computer, Laptop
    HCI Version: 5.0 (0x9)  Revision: 0x100
    LMP Version: 5.0 (0x9)  Subversion: 0x100
    Manufacturer: Intel Corp. (2)

3. lsmod | grep iwlwifi

iwlwifi               380928  1 iwlmvm
cfg80211              708608  3 iwlmvm,iwlwifi,mac80211
compat                 16384  4 iwlmvm,iwlwifi,mac80211,cfg80211

4. dmesg | grep iwlwifi

[    4.913209] Loading modules backported from iwlwifi
[    4.913210] iwlwifi-stack-public:master:8794:f51dd362
[    5.008653] iwlwifi 0000:00:14.3: WRT: Overriding region id 1
[    5.008655] iwlwifi 0000:00:14.3: WRT: Overriding region id 2
[    5.008656] iwlwifi 0000:00:14.3: WRT: Overriding region id 3
[    5.008656] iwlwifi 0000:00:14.3: WRT: Overriding region id 4
[    5.008657] iwlwifi 0000:00:14.3: WRT: Overriding region id 6
[    5.008658] iwlwifi 0000:00:14.3: WRT: Overriding region id 8
[    5.008658] iwlwifi 0000:00:14.3: WRT: Overriding region id 9
[    5.008659] iwlwifi 0000:00:14.3: WRT: Overriding region id 10
[    5.008660] iwlwifi 0000:00:14.3: WRT: Overriding region id 11
[    5.008660] iwlwifi 0000:00:14.3: WRT: Overriding region id 15
[    5.008661] iwlwifi 0000:00:14.3: WRT: Overriding region id 16
[    5.008662] iwlwifi 0000:00:14.3: WRT: Overriding region id 18
[    5.008662] iwlwifi 0000:00:14.3: WRT: Overriding region id 19
[    5.008664] iwlwifi 0000:00:14.3: Found debug destination: EXTERNAL_DRAM
[    5.008665] iwlwifi 0000:00:14.3: Found debug configuration: 0
[    5.008920] iwlwifi 0000:00:14.3: loaded firmware version 46.6bf1df06.0 9000-pu-b0-jf-b0-46.ucode op_mode iwlmvm
[    5.151023] iwlwifi 0000:00:14.3: Detected Intel(R) Wireless-AC 9560, REV=0x318
[    5.199059] iwlwifi 0000:00:14.3: base HW address: 38:00:25:a1:f0:81
[    5.265575] iwlwifi 0000:00:14.3: iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter
[    5.689262] iwlwifi 0000:00:14.3 wlo1: renamed from wlan0

5. modinfo btintel

filename:       /lib/modules/5.4.0-52-generic/kernel/drivers/bluetooth/btintel.ko
firmware:       intel/ibt-12-16.ddc
firmware:       intel/ibt-12-16.sfi
firmware:       intel/ibt-11-5.ddc
firmware:       intel/ibt-11-5.sfi
license:        GPL
version:        0.1
description:    Bluetooth support for Intel devices ver 0.1
author:         Marcel Holtmann <[email protected]>
srcversion:     8215D1011CCE561BCB94364
depends:        bluetooth
retpoline:      Y
intree:         Y
name:           btintel
vermagic:       5.4.0-52-generic SMP mod_unload 
signat:         PKCS#7
signer:         
sig_key:        
sig_hashalgo:   md4

6. dmesg | grep Bluetooth

[    4.992341] Bluetooth: Core ver 2.22
[    4.992361] Bluetooth: HCI device and connection manager initialized
[    4.992364] Bluetooth: HCI socket layer initialized
[    4.992366] Bluetooth: L2CAP socket layer initialized
[    4.992369] Bluetooth: SCO socket layer initialized
[    5.142028] Bluetooth: hci0: Firmware revision 0.1 build 226 week 31 2019
[    6.053221] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    6.053222] Bluetooth: BNEP filters: protocol multicast
[    6.053225] Bluetooth: BNEP socket layer initialized
[   31.816480] Bluetooth: RFCOMM TTY layer initialized
[   31.816487] Bluetooth: RFCOMM socket layer initialized
[   31.816492] Bluetooth: RFCOMM ver 1.11

7. grep Bluetooth /var/log/syslog | grep -i -e "Firmware revision" -e "ibt"

Oct 30 10:07:00 bonavel kernel: [    5.142028] Bluetooth: hci0: Firmware revision 0.1 build 226 week 31 2019

8. 应该工作的英特尔 Ubuntu 驱动程序列表：https ://www.intel.com/content/www/us/en/support/articles/000005511/network-and-io/wireless.html （我下载了最新的iwlwifi-9000-pu-b0-jf-b0-46.ucode) 但它仍然不起作用。甚至使用来自另一个来源的答案从https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/backport-iwlwifi.git编译自己： https://ubuntuforums.org/showthread.php？ t=2400595&s=e07f65d9d61552aefd730fb74761c34c&p=13799142#post13799142仍然没有。
9. dmesg | grep -e wl -e iwl

[    4.913209] Loading modules backported from iwlwifi
[    4.913210] iwlwifi-stack-public:master:8794:f51dd362
[    5.008653] iwlwifi 0000:00:14.3: WRT: Overriding region id 1
[    5.008655] iwlwifi 0000:00:14.3: WRT: Overriding region id 2
[    5.008656] iwlwifi 0000:00:14.3: WRT: Overriding region id 3
[    5.008656] iwlwifi 0000:00:14.3: WRT: Overriding region id 4
[    5.008657] iwlwifi 0000:00:14.3: WRT: Overriding region id 6
[    5.008658] iwlwifi 0000:00:14.3: WRT: Overriding region id 8
[    5.008658] iwlwifi 0000:00:14.3: WRT: Overriding region id 9
[    5.008659] iwlwifi 0000:00:14.3: WRT: Overriding region id 10
[    5.008660] iwlwifi 0000:00:14.3: WRT: Overriding region id 11
[    5.008660] iwlwifi 0000:00:14.3: WRT: Overriding region id 15
[    5.008661] iwlwifi 0000:00:14.3: WRT: Overriding region id 16
[    5.008662] iwlwifi 0000:00:14.3: WRT: Overriding region id 18
[    5.008662] iwlwifi 0000:00:14.3: WRT: Overriding region id 19
[    5.008664] iwlwifi 0000:00:14.3: Found debug destination: EXTERNAL_DRAM
[    5.008665] iwlwifi 0000:00:14.3: Found debug configuration: 0
[    5.008920] iwlwifi 0000:00:14.3: loaded firmware version 46.6bf1df06.0 9000-pu-b0-jf-b0-46.ucode op_mode iwlmvm
[    5.151023] iwlwifi 0000:00:14.3: Detected Intel(R) Wireless-AC 9560, REV=0x318
[    5.199059] iwlwifi 0000:00:14.3: base HW address: 38:00:25:a1:f0:81
[    5.265575] iwlwifi 0000:00:14.3: iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter
[    5.265767] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[    5.689262] iwlwifi 0000:00:14.3 wlo1: renamed from wlan0
[   10.101236] wlo1: authenticate with 28:bd:89:da:85:bc
[   10.105630] wlo1: send auth to 28:bd:89:da:85:bc (try 1/3)
[   10.159788] wlo1: authenticated
[   10.163503] wlo1: associate with 28:bd:89:da:85:bc (try 1/3)
[   10.169867] wlo1: RX AssocResp from 28:bd:89:da:85:bc (capab=0x1031 status=0 aid=4)
[   10.172317] wlo1: associated
[   10.219109] IPv6: ADDRCONF(NETDEV_CHANGE): wlo1: link becomes ready
[   10.231422] wlo1: Limiting TX power to 30 (30 - 0) dBm as advertised by 28:bd:89:da:85:bc

Ubuntu 20.04

我已经尝试了其他类似问题的几个答案。

从 Nouveau 更改为 NVIDIA 驱动程序后，我现在没有任何 WiFi 设置（任务栏中没有图标，网络设置中只有 VPN 设置，没有连接）。

切换回 Nouveau 并不能解决问题。

我的 WiFi 卡是 Intel 6 AX200

输出lshw -C Network（WiFi部分）：

*-network UNCLAIMED
       description: Network controller
       product: Wi-Fi 6 AX200
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       version: 1a
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix cap_list
       configuration: latency=0
       resources: memory:fc700000-fc703fff

输出sudo modprobe iwlwifi：

     modprobe: ERROR: ../libkmod/libkmod-module.c:838 kmod_module_insert_module() could not find module by name='iwlwifi'
modprobe: ERROR: could not insert 'iwlwifi': Unknown symbol in module, or unknown parameter (see dmesg)

似乎驱动程序没有被拾取（？）虽然我自己手动下载了它以尝试解决这个问题并将其移至/lib/firmware并重新启动。

有任何想法吗？

输出dpkg -l | egrep -v '^ii|rc'：

Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
+++-==========================================-=====================================-============-======================================================================================================

输出dpkg -l | grep linux：

ii  binutils-x86-64-linux-gnu                  2.34-6ubuntu1                         amd64        GNU binary utilities, for x86-64-linux-gnu target
ii  console-setup-linux                        1.194ubuntu3                          all          Linux specific part of console-setup
ii  libselinux1:amd64                          3.0-1build2                           amd64        SELinux runtime shared libraries
ii  libv4l-0:amd64                             1.18.0-2build1                        amd64        Collection of video4linux support libraries
ii  libv4lconvert0:amd64                       1.18.0-2build1                        amd64        Video4linux frame format conversion library
ii  linux-base                                 4.5ubuntu3.1                          all          Linux image base package
ii  linux-firmware                             1.187.2                               all          Firmware for Linux kernel drivers
ii  linux-generic-hwe-20.04                    5.4.0.51.54                           amd64        Complete Generic Linux kernel and headers
ii  linux-headers-5.4.0-42                     5.4.0-42.46                           all          Header files related to Linux kernel version 5.4.0
ii  linux-headers-5.4.0-42-generic             5.4.0-42.46                           amd64        Linux kernel headers for version 5.4.0 on 64 bit x86 SMP
ii  linux-headers-5.4.0-51                     5.4.0-51.56                           all          Header files related to Linux kernel version 5.4.0
ii  linux-headers-5.4.0-51-generic             5.4.0-51.56                           amd64        Linux kernel headers for version 5.4.0 on 64 bit x86 SMP
ii  linux-headers-generic-hwe-20.04            5.4.0.51.54                           amd64        Generic Linux kernel headers
ii  linux-image-5.4.0-42-generic               5.4.0-42.46                           amd64        Signed kernel image generic
ii  linux-image-5.4.0-51-generic               5.4.0-51.56                           amd64        Signed kernel image generic
ii  linux-image-5.4.0-52-generic               5.4.0-52.57                           amd64        Signed kernel image generic
ii  linux-image-generic-hwe-20.04              5.4.0.51.54                           amd64        Generic Linux kernel image
ii  linux-libc-dev:amd64                       5.4.0-51.56                           amd64        Linux Kernel Headers for development
ii  linux-modules-5.4.0-42-generic             5.4.0-42.46                           amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
ii  linux-modules-5.4.0-51-generic             5.4.0-51.56                           amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
ii  linux-modules-5.4.0-52-generic             5.4.0-52.57                           amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
ii  linux-modules-extra-5.4.0-42-generic       5.4.0-42.46                           amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
ii  linux-modules-extra-5.4.0-51-generic       5.4.0-51.56                           amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
ii  linux-modules-nvidia-450-5.4.0-52-generic  5.4.0-52.57                           amd64        Linux kernel nvidia modules for version 5.4.0-52
ii  linux-modules-nvidia-450-generic-hwe-20.04 5.4.0-52.57                           amd64        Extra drivers for nvidia-450 for generic-hwe-20.04
ii  linux-sound-base                           1.0.25+dfsg-0ubuntu5                  all          base package for ALSA and OSS sound systems
ii  pptp-linux                                 1.10.0-1build1                        amd64        Point-to-Point Tunneling Protocol (PPTP) Client
ii  python3-selinux                            3.0-1build2                           amd64        Python3 bindings to SELinux shared libraries
ii  syslinux                                   3:6.04~git20190206.bf6db5b4+dfsg1-2   amd64        collection of bootloaders (DOS FAT and NTFS bootloader)
ii  syslinux-common                            3:6.04~git20190206.bf6db5b4+dfsg1-2   all          collection of bootloaders (common)
ii  syslinux-legacy                            2:3.63+dfsg-2ubuntu9                  amd64        Bootloader for Linux/i386 using MS-DOS floppies
ii  util-linux                                 2.34-0.1ubuntu9                       amd64        miscellaneous system utilities

我安装了 Ubuntu 16.04.1。从那时起，我的笔记本电脑无法连接到路由器（DLink-DWR-116）。它的行为是随机的。我遇到的问题：

1. 有时它是通过使用命令:::: sudo service network-manager restart 重新启动网络管理器来连接的，之后网络也不稳定。突然断开。2.Second trail：关闭和打开路由器。之后网络也不稳定。突然断开。3.假设它是连接的。然后在一段时间后进入睡眠状态。如果我再次醒来同样的问题。不断寻找网络。

任何一个面临同样问题并修复它的人

谢谢，拉金德拉

我有一台全新的华硕笔记本电脑，配备英特尔 AX200 系列 wifi 和 AMD renoir（4000 系列）APU。在尝试从现场 USB 记忆棒安装 Ubuntu 20.04 时，我遇到了一些问题：

我被困在一个非常低的分辨率上：应该通过安装 amd 驱动程序来修复，所以没什么大不了的。

可悲的是，我也没有任何 wifi 适配器，这意味着我无法在安装过程中更新我的图形驱动程序或下载更新。

我发现一些用户报告了同样的问题，并声称它被 Intel 包含在 Linux 内核 5.1 及更高版本中（请参阅intel.com 上的此处，从Intel wifi Support for AX200 (Cyclone Peak) 中找到的链接）...应该在这种情况下工作，因为uname -r返回5.4.0.42，但除了蓝牙之外我没有任何形式的网络连接，所以我被困在一个不工作的安装棒上。

我尝试从第一个链接加载英特尔 ucode 文件但没有成功，因为它似乎需要重新启动，由于明显的原因我无法在 live 棒上执行。

我在棒的文件系统上发现了 iwlwifi 的痕迹，在 /lib/firmware 下，所以我假设安装了 iwlwifi 包。问题是我如何加载它才能真正拥有 wifi。

关于我能做些什么来摆脱这种情况的任何想法？提前致谢

Wifi 非常断断续续，我的连接很好，可以 ping google.com 没问题，但是在尝试加载网页时，我每 10 秒只能下载 1 秒的数据（数据速率为 KB/s）。我已经尝试了常见的修复方法，即https://itsfoss.com/speed-up-slow-wifi-connection-ubuntu/但无济于事。

谢谢！