Screen doesn't turn on when waking from suspend: Failed to pin framebuffer with error -19

After waking from suspend, the screen doesn't turn on.

[   41.169063] amdgpu: Move buffer fallback to memcpy unavailable
[   41.169066] amdgpu 0000:0c:00.0: amdgpu: 00000000ca9de50f pin failed
[   41.169069] [drm:dm_plane_helper_prepare_fb [amdgpu]] *ERROR* Failed to pin framebuffer with error -19

As a workaround, you can switch to a different tty to turn the screen back on.

This started after upgraing Arch linux 5.19.13.arch1-1 -> 6.0.1.arch2-1.

I wasn't able to bisect 5.19.13..6.0 (6.0-rc3 is bad, but earlier version are untestable).

But I could reproduce the same bug using commits earlier than 5.19, and found the bug was fixed by commit 925b6e59138cefa47275c67891c65d48d3266d57 (Revert "drm/amdgpu: add drm buddy support to amdgpu").

I have Vega 10.