https://bugs.freedesktop.org/show_bug.cgi?id=72602
Priority: medium Bug ID: 72602 Assignee: dri-devel@lists.freedesktop.org Summary: [REGRESSION] r600 cayman: forced performance level gets reset to auto when playing a video with vdpau Severity: normal Classification: Unclassified OS: Linux (All) Reporter: h.judt@gmx.at Hardware: x86-64 (AMD64) Status: NEW Version: XOrg CVS Component: DRM/Radeon Product: DRI
Steps to reproduce: 1) echo low > /sys/class/drm/card0/device/power_dpm_force_performance_level 2) cat /sys/class/drm/card0/device/power_dpm_force_performance_level low 3) start playing a video (vdpau) 4) cat /sys/class/drm/card0/device/power_dpm_force_performance_level auto
Interestingly, I can repeat step 1 now and the video will play correctly, with the value staying at "low". So it seems this occurs only when initializing video playback (vdpau).
This started happening with kernel 3.12.0 or a rc. It did not get reset with <=3.11.8.