Ubuntu20.04安装Intel AX210 Wifi ＆ Bluetooth驱动
1.Update Ubuntu Kernel
Check current kernel version
uname -sr
Update and upgrade software
sudo apt update
sudo apt upgrade
Download the mainline Linux kernel from Ubuntu
wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.11/amd64/linux-headers-5.11.0-051100-generic_5.11.0-051100.202102142330_amd64.deb
wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.11/amd64/linux-headers-5.11.0-051100_5.11.0-051100.202102142330_all.deb
wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.11/amd64/linux-image-unsigned-5.11.0-051100-generic_5.11.0-051100.202102142330_amd64.deb
wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.11/amd64/linux-modules-5.11.0-051100-generic_5.11.0-051100.202102142330_amd64.deb
Install downloaded kernel
sudo dpkg -i *.deb
Reboot and check ubuntu kernel
2.Install AX210 Wifi Driver
Download and install firmware from git.kernel.org
wget -c https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/snapshot/linux-firmware-main.tar.gz
tar -zxvf linux-firmware-main.tar.gz
cp iwlwifi-*.ucode /lib/firmware
(Optional) Download and install AX210 driver from wireless.wiki.kernel.org
wget -c https://wireless.wiki.kernel.org/_media/en/users/drivers/iwlwifi-ty-59.601f3a66.0.tgz
tar -xf iwlwifi-ty-59.601f3a66.0.tgz
cd iwlwifi-ty-59.601f3a66.0/
cp * /lib/firmware
(Optional) Bluetooth for “Bluetooth: hci0: Intel Read version failed (-22)” error
sudo rmmod btusb
sudo modprobe btusb
3.Delete temporary file
cd /usr/lib/firmware
sudo rm-r *.pnvm //删除与驱动同名且后缀为pnvm的临时文件，否则重启后wifi会再次丢失