New subject: [Bug 72602] [REGRESSION] r600 cayman: forced performance level gets reset to auto when playing a video with vdpau

11 Dec 2013


      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.
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[Bug 72602] New: [REGRESSION] r600 cayman: forced performance level gets reset to auto when playing a video with vdpau