2009-06-18, 13:39
Thread looks like the right one...
On an Aspire Revo, XBMC 9.04.1 *and* from svn (currently built from r21096). I think the svn build *reduced* the problems but did not eliminate them. VDPAU is enabled, (VDPAU)Temporal interlacing is enabled, "Resolution" is set to "Auto", adjust refresh rate is enabled (tried it disabled too). Source material is 1080i from BBC HD at 25fps (50Hz). X config is set to use 50Hz.
Two problems:
1: What *looks* a bit like vsync "tearing", occasional during motion and confined to about the top eighth of the screen. Vertical blank sync *is* enabled though. (And in fact if I turn it off, as you'd expect, tearing is much more pronounced and all over the screen.)
2: Skipped frames or judder visible on continuous motion shots.
I tried upping the GPU memory to 512MB in the bios; no apparent difference to playback.
What can I try next? :-) As this is Atom-based I don't think cpufreq/clocking settings can be addressed, can they?
I downloaded killa.sampla.x264.mkv - it exhibits the judder problem too. No sign of the 'tearing' problem but that was occasional enough that that could just be chance. (BTW, sound is broken on that file, is that normal?)
On an Aspire Revo, XBMC 9.04.1 *and* from svn (currently built from r21096). I think the svn build *reduced* the problems but did not eliminate them. VDPAU is enabled, (VDPAU)Temporal interlacing is enabled, "Resolution" is set to "Auto", adjust refresh rate is enabled (tried it disabled too). Source material is 1080i from BBC HD at 25fps (50Hz). X config is set to use 50Hz.
Two problems:
1: What *looks* a bit like vsync "tearing", occasional during motion and confined to about the top eighth of the screen. Vertical blank sync *is* enabled though. (And in fact if I turn it off, as you'd expect, tearing is much more pronounced and all over the screen.)
2: Skipped frames or judder visible on continuous motion shots.
I tried upping the GPU memory to 512MB in the bios; no apparent difference to playback.
What can I try next? :-) As this is Atom-based I don't think cpufreq/clocking settings can be addressed, can they?
I downloaded killa.sampla.x264.mkv - it exhibits the judder problem too. No sign of the 'tearing' problem but that was occasional enough that that could just be chance. (BTW, sound is broken on that file, is that normal?)