https://bugs.freedesktop.org/show_bug.cgi?id=86267
--- Comment #7 from stefanscheffler at gmx.net --- Same here with a Radeon HD 5670 512MB GDDR5 using Arch Linux. It also happens without starting X. This error only shows up when the card successfully resumes not when it fails: [drm:rv770_stop_dpm] *ERROR* Could not force DPM to low. Disabling DPM seems to prevent the startup failures. Another observation. According to /proc/interrupts the card generates thousands of interrupts per seconds after a failed resume, which might explain why the system feels extremely sluggish afterwards. Bisecting brought me to this commit. It's from early in the 3.17 cycle. I thought this was happening with 3.16 already, but maybe I remember wrong. commit a3eb06dbca08e3fdad7039021ae03b46b215f22a Author: Michel Dänzer <michel.daenzer at amd.com> Date: Wed Jul 9 20:15:42 2014 +0200 drm/radeon: Remove radeon_gart_restore() Doesn't seem necessary, the GART table memory should be persistent. Signed-off-by: Michel Dänzer <michel.daenzer at amd.com> Reviewed-by: Christian König <christian.koenig at amd.com> Signed-off-by: Alex Deucher <alexander.deucher at amd.com> -- You are receiving this mail because: You are the assignee for the bug. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20141202/d02a856d/attachment.html>