https://bugs.freedesktop.org/show_bug.cgi?id=108606
--- Comment #16 from Samantha McVey samantham@posteo.net --- Created attachment 142330 --> https://bugs.freedesktop.org/attachment.cgi?id=142330&action=edit amdgpu.ppfeaturemask=0xfffdbfff lockup during normal usage
I did more testing on amdgpu.ppfeaturemask=0xfffdbfff, and I just got the gpu lockup while browsing the web. I am going to do further testing of the other command line option to see if that will trigger any freezes during more extended usage. But it looks like 0xfffdbfff is confirmed as triggering the bug.