https://bugs.freedesktop.org/show_bug.cgi?id=108585
--- Comment #2 from Dan Horák dan@danny.cz --- (In reply to Michel Dänzer from comment #1)
There were no amdgpu driver changes between rc8 and final... Are you sure this is 100% reproducible with the latter and not reproducible with the former? If so, can you bisect?
till now 100% reproduceable, will try bisecting the kernel sources and also will look what else might have changed
for the record - you can find the kernels at https://copr.fedorainfracloud.org/coprs/sharkcz/talos-kernel/builds/ - amdgpu.dc=0 or 1 makes no difference (0 is my default value, see bug 107049)