https://blog.csdn.net/shikaiaixuexi/article/details/131565396

Deepin Linux 20.9 使用 5.18 内核

sudo apt-get install linux-headers-$(uname -r)

sudo apt install git  make

sudo apt install flex bison


git clone https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/backport-iwlwifi.git
cd backport-iwlwifi
sudo make defconfig-iwlwifi-public
sudo make
sudo make install

cd -

git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
cd linux-firmware/
sudo cp iwlwifi-* /lib/firmware/
reboot 

有的时候报错（重装系统再试又不报错了。）： ./kconf/conf: /lib/x86_64-linux-gnu/libc.so.6: version 'GLIBC_2.33' not found (required by ./kconf/conf)

多装几次系统就可以安装了。