Hi,
I'm running Ubuntu Jaunty (kernel 2.6.28) on a A780FullDisplayPort (HD3200) board / Phenom 9550 (2.2GHz), and have a few problems with video playback with the fglrx driver (8.12). I use mplayer, but I get the same issues on VLC, so I don't believe they're player-specific.
- When I use the xv video output, I get teary video, which I understand is "ok", since the fglrx driver doesn't yet support vsync (at least according to the MythTV FAQ).
- When I use the OpenGL video output, everything is pretty much fine (I have vsync always turned on), only CPU usage constantly stays around 100%, and at some point mplayer complains about the CPU being too slow to play the file (the file being a 720p h264 video). However, when I use mplayer with ffmpeg-mt, multi-threading works well and none of the cores ever gets above 40% usage. Despite that, after around 30 seconds-3 minutes of playback, the video starts randomly getting jerky. Not all the time, but every 20-30 seconds.
I tried pretty much everything, played around with the -vo gl options, tried different audio outputs, gave more RAM to the IGP, all to no avail.
I already had the problem while using Ubuntu Intrepid with 2.6.27/fglrx 8.11, so I already ruled out it having anything to do with the kernel or the fglrx version. If anything, the upgrade to 8.12 actually reduced the occasional jerking.
This problem really baffles me. The videos play perfectly 99% of the time, it's just those random jerks which are a real bother.
If anyone has a similar problem, or the same board / chipset working well with video playback, could you share your experience / configuration?
I'm running Ubuntu Jaunty (kernel 2.6.28) on a A780FullDisplayPort (HD3200) board / Phenom 9550 (2.2GHz), and have a few problems with video playback with the fglrx driver (8.12). I use mplayer, but I get the same issues on VLC, so I don't believe they're player-specific.
- When I use the xv video output, I get teary video, which I understand is "ok", since the fglrx driver doesn't yet support vsync (at least according to the MythTV FAQ).
- When I use the OpenGL video output, everything is pretty much fine (I have vsync always turned on), only CPU usage constantly stays around 100%, and at some point mplayer complains about the CPU being too slow to play the file (the file being a 720p h264 video). However, when I use mplayer with ffmpeg-mt, multi-threading works well and none of the cores ever gets above 40% usage. Despite that, after around 30 seconds-3 minutes of playback, the video starts randomly getting jerky. Not all the time, but every 20-30 seconds.
I tried pretty much everything, played around with the -vo gl options, tried different audio outputs, gave more RAM to the IGP, all to no avail.
I already had the problem while using Ubuntu Intrepid with 2.6.27/fglrx 8.11, so I already ruled out it having anything to do with the kernel or the fglrx version. If anything, the upgrade to 8.12 actually reduced the occasional jerking.
This problem really baffles me. The videos play perfectly 99% of the time, it's just those random jerks which are a real bother.
If anyone has a similar problem, or the same board / chipset working well with video playback, could you share your experience / configuration?
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