https://bugs.freedesktop.org/show_bug.cgi?id=103489
Bug ID: 103489 Summary: [Regression bisected]: vblank time outs and machine hangs on RX560 drm-next-4.15-dc Product: DRI Version: DRI git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: major Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: oschowa@web.de
Created attachment 135115 --> https://bugs.freedesktop.org/attachment.cgi?id=135115&action=edit dmesg
Running the most recent code of agd5f/drm-next-4.15-dc leads to dmesg spam about vblank time outs (see attachment) and eventual full machine hangs when a 4k screen is connected to my RX560. The maching does not hang if only a 1080p screen is connected and it was running fine on commit d7205d5c0f2b09d900231de9026b97105c37d343. Bisecting produced d050f8ed14494ea23c6e10b5893010946ef0f78b as the first bad commit, although on this commit the machine hangs immediatly after boot, so it might be a different issue.