This is a community discussion form, and questions like this should usually be pointed at Ask.
On that note, I have filed a very similar bug with no activity yet. I know of no workaround, and agree that it is very annoying. I urge you to go into the “Problem Reporting” app, and see if you can generate a similar back trace by pressing the blue
Report button on the issue in question. It will probably be in component
kernel-core and when clicking on details the reason should look something like:
WARNING: CPU: 7 PID: 260 at drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:1751 dm_suspend+0x178/0x190 [amdgpu] [amdgpu