[mythtv-users] Playback problem on M10k - Unable to create XvMC Blocks

Brian Webb webbbn at gmail.com
Mon Jun 6 15:24:03 UTC 2005


I have a very similar setup, and I've been trying to get it working
for weeks.  Currently I'm seeing the same message that you're seeing. 
My latest theory is that the ATPMS myth rpms are not built with VIA
XvMC compiled in.  The spec file appears to default it to compile
without VIA XvMC, and I don't know how to tell how the binary rpms
were compiled.  Can anybody confirm this?


On 6/6/05, Robert Coup <robert2 at coup.net.nz> wrote:
> Hi All,
> I have a newly setup MythTV system, running a PVR-150 on an EPIA M10000
> system. After a couple of days of playing, everything prettymuch works,
> except for hw-accelerated playback within mythtv.
> If I try to watch live tv, or play back a recording, I get a "Unable to
> initialize video" screen and logs that look like
> (xvmc-problem.mythtv.log). I think the critical message is "Unable to
> create XvMC Blocks". If I disable XvMC in myth's playback settings it
> works (but its stressing the cpu too much so video skips).
> I followed the excellent Myth(TV)ology guide by Jarod for the most part.
> - Fedora Core 3, with kernel 2.6.10-1.770_FC3
> - MythTV (0.18.1), DRM, ALSA, LIRC from ATrpms
> - Terry Barnaby's RPMs for Unichrome (2005/04/30)
> As far as I can tell, the via hw-decoder is working within xine (see
> xine.vid.log) when I use -V xxmc to play a video.  Trying to open
> /dev/video0 doesn't work within xine, but thats probably just my
> ignorance (xine.tv.log)
> If I use mplayer to watch TV [via ptune-ui & /dev/video0] it all works
> (mplayer.log). Using mplayer/xvmc I get output like (mplayer.xvmc.log)
> All these logs/configs are at:
> http://homepages.ihug.co.nz/~coup/mythtv/060605/
> Xorg.conf, dmesg output, /var/log/messages, and Xorg.log are all there too.

Brian Webb
webbbn at gmail.com

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