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Martin Hope
kumetix
Asked: 2021-08-06 01:10:04 +0800 CST
  • 2

我家里有两台笔记本电脑——一台 MacBook Pro 和一台装有 Ubuntu 18.04.5 的戴尔 XPS 15。

两者都相邻，连接到我的家庭网络。

MacBook Pro 的速度测试结果：

Retrieving speedtest.net configuration...
Testing from XFone 018 (141.xxx.xx.235)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by Partner Communications (Tel Aviv) [1.73 km]: 19.941 ms
Testing download speed................................................................................
Download: 57.03 Mbit/s
Testing upload speed......................................................................................................
Upload: 2.59 Mbit/s

戴尔 XPS 15 / Ubuntu 18.04.5 速度测试结果：

Retrieving speedtest.net configuration...
Testing from XFone 018 (141.xxx.xx.235)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by Partner Communications (Tel Aviv) [1.73 km]: 23.252 ms
Testing download speed................................................................................
Download: 0.22 Mbit/s
Testing upload speed......................................................................................................
Upload: 0.15 Mbit/s

无线硬件：

Network:   Card: Intel Wireless-AC 9260 driver: iwlwifi bus-ID: 02:00.0
           IF: wlp2s0 state: up mac: <filter>

$ lspci -v
...
02:00.0 Network controller: Intel Corporation Wireless-AC 9260 (rev 29)
    Subsystem: Intel Corporation Device 0014
    Flags: bus master, fast devsel, latency 0, IRQ 16
    Memory at edc00000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: iwlwifi
    Kernel modules: iwlwifi

$ iwconfig
virbr0    no wireless extensions.

docker0   no wireless extensions.

vethba1d543  no wireless extensions.

wlp2s0    IEEE 802.11  ESSID:"spongebob"  
          Mode:Managed  Frequency:5.18 GHz  Access Point: AC:84:C6:46:43:6B   
          Bit Rate=866.7 Mb/s   Tx-Power=22 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=70/70  Signal level=-16 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:231   Missed beacon:0

vethaea3bba  no wireless extensions.

virbr0-nic  no wireless extensions.

br-fc08e482f3d3  no wireless extensions.

virbr1    no wireless extensions.

virbr1-nic  no wireless extensions.

lo        no wireless extensions.

br-b1fc08b5672f  no wireless extensions.

br-69d310606872  no wireless extensions.


$ modinfo iwlwifi 
                                                                                                                                                                                       
filename:       /lib/modules/4.15.0-153-generic/kernel/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko
license:        GPL
author:         Copyright(c) 2003- 2015 Intel Corporation <[email protected]>
description:    Intel(R) Wireless WiFi driver for Linux
firmware:       iwlwifi-100-5.ucode
firmware:       iwlwifi-1000-5.ucode
firmware:       iwlwifi-135-6.ucode
firmware:       iwlwifi-105-6.ucode
firmware:       iwlwifi-2030-6.ucode
firmware:       iwlwifi-2000-6.ucode
firmware:       iwlwifi-5150-2.ucode
firmware:       iwlwifi-5000-5.ucode
firmware:       iwlwifi-6000g2b-6.ucode
firmware:       iwlwifi-6000g2a-6.ucode
firmware:       iwlwifi-6050-5.ucode
firmware:       iwlwifi-6000-6.ucode
firmware:       iwlwifi-7265D-29.ucode
firmware:       iwlwifi-7265-17.ucode
firmware:       iwlwifi-3168-29.ucode
firmware:       iwlwifi-3160-17.ucode
firmware:       iwlwifi-7260-17.ucode
firmware:       iwlwifi-8265-34.ucode
firmware:       iwlwifi-8000C-34.ucode
firmware:       iwlwifi-9260-th-b0-jf-b0-34.ucode
firmware:       iwlwifi-9260-th-a0-jf-a0-34.ucode
firmware:       iwlwifi-9000-pu-a0-jf-b0-34.ucode
firmware:       iwlwifi-9000-pu-b0-jf-b0-34.ucode
firmware:       iwlwifi-9000-pu-a0-jf-a0-34.ucode
firmware:       iwlwifi-QuQnj-a0-hr-a0-34.ucode
firmware:       iwlwifi-QuQnj-a0-jf-b0-34.ucode
firmware:       iwlwifi-QuQnj-f0-hr-a0-34.ucode
firmware:       iwlwifi-Qu-a0-jf-b0-34.ucode
firmware:       iwlwifi-Qu-a0-hr-a0-34.ucode
srcversion:     578432A6FC6B903815C7082
alias:          pci:v00008086d0000A0F0sv*sd00000000bc*sc*i*
...
depends:        cfg80211
retpoline:      Y
intree:         Y
name:           iwlwifi
vermagic:       4.15.0-153-generic SMP mod_unload modversions 
signat:         PKCS#7
signer:         
sig_key:        
sig_hashalgo:   md4
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, 4K for other devices 1:4K 2:8K 3:12K (default 0) (int)
parm:           fw_restart:restart firmware in case of error (default true) (bool)
parm:           antenna_coupling:specify antenna coupling in dB (default: 0 dB) (int)
parm:           nvm_file:NVM file name (charp)
parm:           d0i3_disable:disable d0i3 functionality (default: Y) (bool)
parm:           lar_disable:disable LAR functionality (default: N) (bool)
parm:           uapsd_disable:disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3) (uint)
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:           fw_monitor:firmware monitor - to debug FW (default: false - needs lots of memory) (bool)
parm:           d0i3_timeout:Timeout to D0i3 entry when idle (ms) (uint)
parm:           disable_11ac:Disable VHT capabilities (default: false) (bool)

内核版本：

$ uname -r
4.15.0-153-generic

驱动程序：

$ sudo ls -l /lib/firmware/*9260*                                                                                                                                                                   
 
-rw-r--r-- 1 root root 2637216 Apr 24  2018 /lib/firmware/iwlwifi-9260-th-b0-jf-b0-33.ucode
-rw-r--r-- 1 root root 2678092 Apr 14  2020 /lib/firmware/iwlwifi-9260-th-b0-jf-b0-34.ucode
-rw-r--r-- 1 root root 2521412 Mar  2 22:27 /lib/firmware/iwlwifi-9260-th-b0-jf-b0-38.ucode
-rw-r--r-- 1 root root 2620656 Apr 14  2020 /lib/firmware/iwlwifi-9260-th-b0-jf-b0-41.ucode
-rw-r--r-- 1 root root 2558176 Apr 14  2020 /lib/firmware/iwlwifi-9260-th-b0-jf-b0-43.ucode
-rw-r--r-- 1 root root 1463820 Mar  2 21:52 /lib/firmware/iwlwifi-9260-th-b0-jf-b0-46.ucode


$ lsmod | grep iwlwifi 
                                                                                                                                                                                  
iwlwifi               290816  1 iwlmvm
cfg80211              634880  3 iwlmvm,iwlwifi,mac80211


$ ubuntu-drivers devices     
                                                                                                                                                                            
WARNING:root:_pkg_get_support nvidia-driver-390: package has invalid Support Legacyheader, cannot determine support level
== /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0 ==
modalias : pci:v00008086d00002526sv00008086sd00000014bc02sc80i00
vendor   : Intel Corporation
manual_install: True
driver   : backport-iwlwifi-dkms - distro free
networking
Martin Hope
kumetix
Asked: 2019-10-02 09:21:13 +0800 CST
  • 3
  • 硬件是 HP ProBook 4330s
  • 软件是 Ubuntu 18.04.3 LTS

几天前突然WiFi适配器停止工作。

设置 UI 显示“未找到 Wi-Fi 适配器”

一些 CLI 说

chuck@jones:~$ lspci -knn | grep Net -A3; rfkill list
24:00.0 Network controller [0280]: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) [168c:002b] (rev 01)
      Subsystem: Hewlett-Packard Company AR9285 Wireless Network Adapter (PCI-Express) [103c:1461]
      Kernel driver in use: ath9k
      Kernel modules: ath9k
25:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
0: phy0: Wireless LAN
      Soft blocked: no
      Hard blocked: yes
1: hp-wifi: Wireless LAN
      Soft blocked: no
      Hard blocked: yes
2: hp-bluetooth: Bluetooth
      Soft blocked: no
      Hard blocked: yes
3: hci0: Bluetooth
      Soft blocked: no
      Hard blocked: no

chuck@jones:~$ sudo lshw -C network
[sudo] password for chuck: 
  *-network DISABLED        
       description: Wireless interface
       product: AR9285 Wireless Network Adapter (PCI-Express)
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:24:00.0
       logical name: wlo1
       version: 01
       serial: 74:e5:43:bc:ff:06
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ath9k driverversion=4.15.0-64-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: irq:19 memory:d4700000-d470ffff

chuck@jones:~$ uname -a
Linux jones 4.15.0-64-generic #73-Ubuntu SMP Thu Sep 12 13:16:13 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

chuck@jones:~$ iwconfig
wlo1      IEEE 802.11  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=off   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

可能与最新的 Ubuntu 软件更新有关吗？还是旧硬件可能崩溃？如何解决这样的问题？

wireless hp atheros 18.04