https://bugs.freedesktop.org/show_bug.cgi?id=109526
Bug ID: 109526 Summary: [CARRIZO] amdgpu fails to resume from S3, atombios stuck executing C554 (len 629, WS 0, PS 0) Product: DRI Version: unspecified Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: johannes.hirte@datenkhaos.de
there is already a similar report at kernel bugzilla, but nobody took notice: https://bugzilla.kernel.org/show_bug.cgi?id=190971
It's a kernel bug, first seen with linux-4.20 on my Carrizo. I don't have a testcase for reproducing, so it's hard to bisect. Sometimes it happens multiple times a day, with every suspend-resume cycle. Sometimes the machine works for several days with at least two suspend-resume-cycles per day.