https://bugs.freedesktop.org/show_bug.cgi?id=70146

Priority: medium Bug ID: 70146 Assignee: dri-devel@lists.freedesktop.org Summary: UVD performance regression on linux-3.12-rc Severity: normal Classification: Unclassified OS: All Reporter: johannes.hirte@fem.tu-ilmenau.de Hardware: Other Status: NEW Version: DRI CVS Component: DRM/Radeon Product: DRI

When playing h.264 videos with UVD support, the video is sluggish and mplayer shows the "Your system is too SLOW to play this!" message after a few seconds.

git bisect points me to:

ce3537d57196dfc7094755532e1ffc1af133ca5f is the first bad commit commit ce3537d57196dfc7094755532e1ffc1af133ca5f Author: Alex Deucher alexander.deucher@amd.com Date: Wed Jul 24 12:12:49 2013 -0400

drm/radeon/dpm: use multiple UVD power states (v3)

Use the UVD handle information to determine which which power states to select when using UVD. For example, decoding a single SD stream requires much lower clocks than multiple HD streams.

v2: switch to a cleaner dpm/uvd interface v3: change the uvd power state while streams are active if need be

Signed-off-by: Alex Deucher alexander.deucher@amd.com

:040000 040000 d8c5afc839fccfe228d8880817bee5b2a35d0578 af38b8261405bd4212f856499520a50476b50b43 M drivers

GPU is a Mobility Radeon HD5470