[mythtv-users] XvMC Playback Segfault
R. G. Newbury
newbury at mandamus.org
Sat Jun 27 02:40:54 UTC 2009
Marc Tousignant wrote:
> I am getting a segfault when trying to use the following XvMC options with
> an nVidia card and Watching TV/Recordings
>> = 1280 720
> Video Renderer
> At first I thought the issue was due to opengl-sync being on in the compile
> options so I turned that off, found someone else had a similar issue. It is
> not checked in the playback settings.
> Anyone know of a fix?
> XvMC support yes
> XvMC VLD support no
> XvMC pro support no
> XvMC libs -lXvMCNVIDIA
> VDPAU support no
> OpenGL video no
> OpenGL vsync no
Couple of things to try. from far too much time working with xvmc on
intel and openchrome (but not nvidia)
The Xvmc code in the Intel driver (pre version 2.6.0) was limited to a
resolution of 720x480. Nvidia's driver doesn't have that limit, AIUI but
try an SD program just in case the size is a problem.
Most important test: check that you have the full and correct pathname
and filename for 'libXvMCNVIDIA...' in /etc/X11/XvMCConfig. For vdpau
capable drivers the proper name is the full pathname and filename
/usr/lib/libXvMCNVIDIA_dynamic.so.1 (which sym-links to
libXvMCNVIDIA.so.180.51 or whatever). IIRC the full pathname was not
used for the pre-vdpau version drivers, if you are using an earlier
driver. According to the README, xvmc is enabled in the vdpau capable
drivers, but of course, it only works on xvmc capable hardware.
Other than that, check out the wiki at http://www.mythtv.org/wiki/XvMC
especially the 'Configuring xorg.conf' section (if you haven't already
Please let me know if anything I say offends you.
I may wish to offend you again in the future.
Tux says: "Be regular. Eat cron flakes."
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