https://bugzilla.kernel.org/show_bug.cgi?id=60510
Bug ID: 60510 Summary: AMD Mobility Radeon HD4650 Screen Corruption with DPM Product: Drivers Version: 2.5 Kernel Version: 3.10.0-drm-next-20130705 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: yjwong92@gmail.com Regression: No
I'm testing out the new DPM patches on drm-next-3.11.
When there is heavy screen updates (i.e. dragging windows around), screen corruption appears (see video). DPM otherwise works perfectly; system runs cooler and UVD also works perfectly fine.
Corruption does not occur with radeon.dpm off.
There is nothing unusual in the kernel logs.
I can provide more info if requested.
Video link: http://www.youtube.com/watch?v=WaWHBckwPpo&feature=youtu.be