Início / ubuntu / Perguntas / 1232522
Accepted
Soheil Paper
Asked: 2020-04-29 09:53:56 +0800 CST

O driver Wi-Fi é perdido após um desligamento manual

  • 772

Meu Ubuntu travou ao executar a versão do VirtualBox do Android, então desliguei o sistema.

De acordo com esta pergunta anterior, agora você pode fazer login no Ubuntu OS, mas o problema com o driver WiFi adquirido e quando eu o executo ifconfigmostra os dados WiFi,

então eu tentei instalar o driver WiFi do Ubuntu USB ao vivo por estes códigos:

sudo apt remove broadcom-sta-dkms bcmwl-kernel-source
sudo add-apt-repository restricted
sudo apt update
sudo apt-get install bcmwl-kernel-source
sudo apt-get install linux-generic
sudo apt autoremove

e pelo ambiente USB ao vivo, mostrando que está instalado:


root@ubuntu:/# ifconfig
enp1s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether c8:5b:76:8b:3e:ae  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 4589  bytes 386757 (386.7 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4589  bytes 386757 (386.7 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.100  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::1153:1820:27de:5a87  prefixlen 64  scopeid 0x20<link>
        ether c8:3d:d4:3c:23:63  txqueuelen 1000  (Ethernet)
        RX packets 32549  bytes 35889892 (35.8 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 25157  bytes 3314860 (3.3 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

agora está mostrando o WiFi via CD ao vivo do Ubuntu e sudo chroot /mnt/assim:

root@ubuntu:/# lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 02)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1)
00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter
03:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 920MX] (rev a2)
root@ubuntu:/# iwconfig
lo        no wireless extensions.

wlp2s0    IEEE 802.11  ESSID:"TP-LINK_4AD2"  
          Mode:Managed  Frequency:2.447 GHz  Access Point: D4:6E:0E:45:4A:D2   
          Bit Rate=72.2 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Encryption key:off
          Power Management:on
          Link Quality=48/70  Signal level=-62 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:303   Missed beacon:0

enp1s0    no wireless extensions.

mas não mostra essa configuração via Ubuntu principal no meu PC, e não consigo conectar a internet lá?

a versão principal do Ubuntu get form live USB é assim:

ubuntu@ubuntu:~$  cat /etc/os-release
NAME="Ubuntu"
VERSION="18.04.3 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.3 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

Atualização: também obtenha esta saída via versão USB do Ubuntu ao vivo:

root@ubuntu:/etc/modprobe.d# sudo ifup wlp2s0
Unknown interface wlp2s0

root@ubuntu:/etc/modprobe.d# sudo modprobe rtl8821ae
modprobe: FATAL: Module rtl8821ae not found in directory /lib/modules/5.0.0-23-generic

E com base neste post para verificar se o driver está instalado, eu tenho:

root@ubuntu:/etc/modprobe.d# modinfo rtl8821ae
modinfo: ERROR: Module rtl8821ae not found.
root@ubuntu:/etc/modprobe.d# find /lib/modules/$(uname -r)/kernel/drivers/net/wireless -name '*.ko'
find: ‘/lib/modules/5.0.0-23-generic/kernel/drivers/net/wireless’: No such file or directory

e formar este post:

root@ubuntu:~/rtlwifi_new#     sudo modprobe rtl8821ae
modprobe: FATAL: Module rtl8821ae not found in directory /lib/modules/5.0.0-23-generic
root@ubuntu:~/rtlwifi_new# dmesg | tail
\[ 2975.493281] nouveau 0000:03:00.0: fifo: fault 01 [WRITE] at 0000000000100000 engine 04 [BAR1] client 08 [HUB/HOST_CPU_NB] reason cc [] on channel -1 [007fce7000 unknown]
[ 2981.742904] nouveau 0000:03:00.0: fifo: fault 01 [WRITE] at 0000000000000000 engine 04 [BAR1] client 08 [HUB/HOST_CPU_NB] reason cc [] on channel -1 [007fce7000 unknown]
[ 2981.743002] nouveau 0000:03:00.0: fifo: fault 00 [READ] at 0000000000100000 engine 04 [BAR1] client 07 [HUB/HOST_CPU] reason 4c [] on channel -1 [007fce7000 unknown]
[ 2981.743029] nouveau 0000:03:00.0: fifo: DROPPED_MMU_FAULT 00000000
[ 2996.797871] nouveau 0000:03:00.0: fifo: fault 01 [WRITE] at 0000000000050000 engine 05 [BAR2] client 08 [HUB/HOST_CPU_NB] reason ca [] on channel -1 [007fd38000 unknown]
[ 2996.803470] nouveau 0000:03:00.0: fifo: fault 01 [WRITE] at 0000000000100000 engine 04 [BAR1] client 08 [HUB/HOST_CPU_NB] reason cc [] on channel -1 [007fce7000 unknown]
[ 3003.054698] nouveau 0000:03:00.0: fifo: fault 01 [WRITE] at 0000000000000000 engine 04 [BAR1] client 08 [HUB/HOST_CPU_NB] reason cc [] on channel -1 [007fce7000 unknown]
[ 3003.054924] nouveau 0000:03:00.0: fifo: fault 00 [READ] at 0000000000100000 engine 04 [BAR1] client 07 [HUB/HOST_CPU] reason 4c [] on channel -1 [007fce7000 unknown]
[ 3003.054966] nouveau 0000:03:00.0: fifo: DROPPED_MMU_FAULT 00000000
[ 3513.772212] EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)

Obrigado.

networking wireless drivers

1 respostas

  1. Best Answer

    Você tem problemas com seu kernel. Está semi-instalado.

    Provavelmente uma atualização autônoma estava acontecendo no momento em que você desligou o sistema.

    Inicialize com um kernel anterior (Wi-Fi deve funcionar) e atualize o sistema.

    BTW, os comandos Broadcom no início da sua pergunta não têm relação com o seu problema, porque você não possui um dispositivo Broadcom.

    • 1

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