已验证在显卡 “Radeon HD 8570 /R7 240/340 /R520 OEM”上可用
#参考了如下帖子
https://askubuntu.com/questions/1094443/ubuntu-18-04-1-lts-r9-390x-amdgpu-guide-testing-summary
# 安装，如果依赖有问题，不安装也可以
sudo apt install mesa-vulkan-drivers mesa-vulkan-drivers:i386
# 添加黑名单屏蔽radeon驱动
touch /etc/modprobe.d/blacklist-radeon.conf
echo blacklist radeon >> /etc/modprobe.d/blacklist-radeon.conf
# 修改grub
#/etc/default/grub
...
GRUB_CMDLINE_LINUX_DEFAULT="amdgpu.si_support=1 amdgpu.cik_support=1 amdgpu.dc=1 amdgpu.dpm=1 amdgpu.modeset=1"
...
#更新 grub
sudo update-grub2 && sudo update-initramfs -u -k all
可能产生如下问题：注意那几个missing的文件，需要自己手动下载，并放入指定位置
http://anduin.linuxfromscratch.org/sources/linux-firmware/amdgpu/
下载地址
...
user@user-PC:~$ sudo update-initramfs -u -k all
update-initramfs: Generating /boot/initrd.img-4.19.0-desktop-amd64
cryptsetup: WARNING: The initramfs image may not contain cryptsetup binaries
nor crypto modules. If that's on purpose, you may want to uninstall the
'cryptsetup-initramfs' package in order to disable the cryptsetup initramfs
integration and avoid this warning.
setupcon is missing. Please install the 'console-setup' package.
W: plymouth: The plugin label.so is missing, the selected theme might not work as expected.
W: plymouth: You might want to install the plymouth-themes package to fix this.
W: Possible missing firmware /lib/firmware/amdgpu/oland_uvd.bin for module amdgpu
W: Possible missing firmware /lib/firmware/amdgpu/pitcairn_uvd.bin for module amdgpu
W: Possible missing firmware /lib/firmware/amdgpu/verde_uvd.bin for module amdgpu
W: Possible missing firmware /lib/firmware/amdgpu/tahiti_uvd.bin for module amdgpu
I: The initramfs will attempt to resume from /dev/nvme0n1p7
I: (UUID=00fdf415-1264-4ecd-bf8b-f6f31215a432)
I: Set the RESUME variable to override this.
live-boot: core filesystems devices utils udev blockdev dns.
...
#重启
reboot
# 查看驱动是否更换成功
# 应有 "Kernel driver in use: amdgpu"
sudo lspci -v | grep amdgpu -B 19
# 应有 "configuration: driver=amdgpu"
sudo lshw -c video | grep amdgpu -B 10 -A 1
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