I have a problem like the one explain in this post : wifi networks lost after updating
I don't know how to solve it. I use Ubuntu 18.04.4 LTS on a Lenovo ThinkPad E15 with a dual boot (windows/Ubuntu).
My problem occur after my last update and now, no Wifi detected at all.
Here some info :
uname :
michel@michel-ThinkPad-E15:~$ uname -a
Linux michel-ThinkPad-E15 5.4.0-42-generic #46~18.04.1-Ubuntu SMP Fri Jul 10 07:21:24 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
rfkill :
michel@michel-ThinkPad-E15:~$ rfkill list all
0: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: yes
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
lspci :
michel@michel-ThinkPad-E15:~$ lspci -nnk | grep 0280 -A3
05:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:c822]
Subsystem: Lenovo Device [17aa:c123]
Kernel driver in use: rtw_pci
Kernel modules: rtwpci
nmcli :
michel@michel-ThinkPad-E15:~$ nmcli dev wifi list
IN-USE SSID MODE CHAN RATE SIGNAL BARS SECURITY
michel@michel-ThinkPad-E15:~$ dmesg | grep -e rtw
[ 3.846786] rtw_pci 0000:05:00.0: enabling device (0000 -> 0003)
[ 3.846812] rtw_pci 0000:05:00.0: Direct firmware load for rtw88/rtw8822c_wow_fw.bin failed with error -2
[ 3.846814] rtw_pci 0000:05:00.0: failed to request firmware
[ 3.847210] rtw_pci 0000:05:00.0: Firmware version 5.0.0, H2C version 14
[ 4.108806] rtw_pci 0000:05:00.0 wlp5s0: renamed from wlan0
[ 4.922547] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 4.931715] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 4.935412] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 15.015312] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 15.019406] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 25.020507] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 25.024711] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 35.023713] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 35.027775] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 45.016491] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 45.020322] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 55.021730] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 55.025759] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 319.399719] rtw_pci 0000:05:00.0: failed to wait firmware completion
[ 319.404033] rtw_pci 0000:05:00.0: failed to wait firmware completion
Can anyone help me ?
I have disable my secureboot after i read that it can be a problem with unsigned version of an updated wifi driver (secureboot need signed module i think), but no success for me.
Can anyone say me if i can try what is proposed here : https://medium.com/@vovaprivalov/fixing-problem-with-missing-wifi-adapter-on-ubuntu-18-04-dec50879a47e (i have don't try it cause i am not sure it's the same path for me ... don't want to crash my system more than now !)
(sorry for my bad english)
Вам необходимо обновить linux-firmware
. В репо 18.04 еще нет файла rtw88 / rtw8822c_wow_fw.bin
.
Вы можете безопасно установить linux-прошивку
из репо 20.04, потому что теперь у вас есть то же самое прошивка. Запустите в терминале:
wget http://mirrors.kernel.org/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.187.2_all.deb
sudo dpkg -i linux-firmware_1.187.2_all.deb