Comment # 22
on bug 103370
from Shih-Yuan Lee
(In reply to Mike Lothian from comment #19)
> You have to blacklist radeon to use amdgpu as both modules try and claim the
> device
After I blacklist radeon, there is no AMD graphics provider from `xrandr
--listproviders`.
[ 1.937326] amdgpu 0000:01:00.0: enabling device (0000 -> 0003)
[ 1.937633] amdgpu 0000:01:00.0: SI support provided by radeon.
[ 1.937635] amdgpu 0000:01:00.0: Use radeon.si_support=0 amdgpu.si_support=1
to override.
After I use 'radeon.si_support=0 amdgpu.si_support=1', X window system can not
start up.