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。
只需按住电源按钮关闭笔记本电脑即可解决我的问题！因为我有Ubuntu和Windows 10，我认为它们都会相互影响并在关机/重启之前更改一些设置；像耳机的一些问题或这个WiFi问题。
我希望这会帮助其他朋友。
刚刚注册添加到这个，所以我不能投票和/或评论，但 Windows 中的“关闭快速启动”可以解决问题，需要设置为最佳答案，因为“按住电源关闭电源按钮”对文件系统来说真的很糟糕
要正确解决此问题，您必须禁用 Windows 快速启动：
并且当离开 Windows 时，总是关闭，因为正如您在配置中看到的“重启不受影响”。
如iwlwifi 文档中所述：
关于启用 Windows 和“快速启动”的双启动
如果您有一台装有最新版本 Windows 的双启动计算机，并且在启动 Linux 时在 WiFi 设备初始化期间开始出现问题，则问题可能是由于 Windows 上的“快速启动”功能造成的。
启用此功能后，Windows 不会真正关闭整个系统，而是让系统部分运行，以便您可以更快地再次启动机器。尝试禁用此选项，在 Windows 10 上，它应该在“控制面板→硬件和声音→电源选项→系统设置”中。选择“选择电源按钮的功能”以从电源选项访问系统设置。然后在“关机设置”中禁用“快速启动”选项。这将导致 Windows 完全关闭并可能解决问题。
我遇到了同样的问题，在这种情况下，这是一个部分成功的升级过程。使用“lsmod”命令查看驱动程序是否实际加载。如果不是，您可能需要通过其他方式连接到互联网并下载驱动程序或使用安装媒体重新添加驱动程序。或者，您可以通过 grub 菜单启动到较旧的内核？
希望有帮助。
它也对我有用，通过按住电源按钮关闭并在 grub 菜单中选择 ubuntu。我可以看到网络的描述从“网络控制器”更改为“无线接口”。非常奇怪的解决方案。
关闭 Windows，“快速启动”是关键！双启动时，Windows 10 会保持网卡连接以加快启动速度，这会阻止与 ubuntu 一起使用。在以下链接中描述 - https://www.howtogeek.com/243901/the-pros-and-cons-of-windows-10s-fast-startup-mode/