https://bugs.freedesktop.org/show_bug.cgi?id=66452
--- Comment #1 from Eugene Shalygin eugene.shalygin+bugzilla.FDO@gmail.com --- Playback of WMV3 streams using UVD sometimes leads to computer hangs (see below). After upgrade of ffmpeg to version 2.0 from 1.2 these hangs happen much more often, almost every time I try to play a WMV3 stream after several seconds of playback.
Gentoo was porting UVD patches to 3.9 kernel, and I remember that in the time of 3.9 kernel WMV3 deconding was producing correct images (and computer hangs also). With current ucode and kernel 3.9 WMV3 decondig produces the does not work also.
Hangs seem to be almost complete: SysRQ does not work, mouse pointer does not move. The only thing that remains alive is laptop Fn key combsnations to turn on/off backlit of keyboard and screen backlight. Screen backlight turns on (after being turned off) by any key press. Screen picture disappears for 7-10 seconds every 20 or 30 seconds in the "hanged mode" and eventually lead to complete hang of the computer.