[mythtv-users] VIA EPIA XvMC problems upgrading from 0.18 to 0.19

Paul paul at whitecitadel.com
Tue Mar 7 15:52:17 UTC 2006

>For what its worth, I have XvMC and MythTV 0.19 working perfectly fine
>on my VIA EPIA frontend. I don't have a direct solution for you, but I
>can give you the specs of my system:
>VIA EPIA M10000
>Gentoo Linux, kernel
>ivtv-0.4.3 (PVR-250 capture card)
>all have been compiled from scratch using ebuilds, except ivtv which I
>compiled the old-fashioned way using make ;-)
>I've even managed to get a colour OSD on screen by following the
>directions in http://svn.mythtv.org/trac/changeset/7569 and in
>This is despite the fact that the wiki indicates that the fix should
>NOT work for non-Nvidia cards!
>If anyone wants any more detail on my system/copies of config files,
>let me know.
>mythtv-users mailing list
>mythtv-users at mythtv.org

I could really do with some help if you are offering!
- Can you confirm what setting you have in settings->playback, are you 
using XvMC or XvMC VIA?
- Are you using the x11 via driver, openchrome, unichrome or something 
- Did you configure with --enable-xvmc and --enable-xvmc-vld ?

I have a new frontend (just setting up, had backend working for a few 
weeks) and to get an easy via install with xorg 7.x I used Fedora Core 
5. This seems to have gone ok, compiled Myth ok with "./configure 
--enable-xv --enable-xvmc --enable-xvmc-vld" but playback in software 
still I think.

myth gives me options for XvMC and XvMX VIA in the playback settings. 

The XvMC Via ones barf out in a serious way:

2006-03-07 14:11:04.162 Using protocol version 27
2006-03-07 14:11:04.195 TV: Attempting to change from None to WatchingLiveTV
2006-03-07 14:11:04.206 Using protocol version 27
2006-03-07 14:11:08.087 
RingBuf(myth:// Waited 2 seconds for data to become available...
2006-03-07 14:11:08.087 Checking to see if there's a new livetv program to switch to..
2006-03-07 14:11:09.707 RingBuf(myth:// Timing out wait due to impending livetv switch.
0: start_time: 857.475 duration: -9223372036854.775
stream: start_time: 9527.500 duration: -9223372036854.775 bitrate=0 kb/s
2006-03-07 14:11:09.750 AFD: Opened codec 0x8b00680, 
id(MPEG2VIDEO_XVMC_VLD) type(Video)
2006-03-07 14:11:09.750 NVP: Disabling Audio, params(-1,-1,-1)
2006-03-07 14:11:09.751 NVP: Disabling Audio, params(0,-1,-1)
Unable to create XvMC Surface.
Segmentation fault

With Standard XvMC selected I get:

2006-03-07 15:10:59.608 TV: Attempting to change from None to 
2006-03-07 15:10:59.721 Disable DPMS
0: start_time: 5752.703 duration: 620.654
1: start_time: 5752.642 duration: 620.700
2: start_time: 5752.659 duration: 620.687
3: start_time: 5752.642 duration: 620.716
stream: start_time: 63918.242 duration: 6896.839 bitrate=2185 kb/s
2006-03-07 15:11:00.547 AFD: Opened codec 0xaa982e0, id(MPEG2VIDEO) 
2006-03-07 15:11:00.548 AFD: Opened codec 0xaaca300, id(MP3) type(Audio)
2006-03-07 15:11:00.548 AFD: Opened codec 0x9ec5250, id(MP3) type(Audio)
2006-03-07 15:11:00.548 AFD: Opened codec 0x9c14e20, id(DVB_SUBTITLE) 
2006-03-07 15:11:00.551 Opening audio device '/dev/dsp'.
2006-03-07 15:11:00.551 Opening OSS audio device '/dev/dsp'.
2006-03-07 15:11:03.082 Realtime priority would require SUID as root.
2006-03-07 15:11:03.108 Video timing method: DRM

but CPU usage points to software decode.

Anyone got any suggestions? I am listing libviaXvMC.so in 
/etc/X11/XvMCConfig by the way...

Alternativly, anyone suggest a all in one install with 0.19 (cause I 
have my backend running 19 happily), I tried one of the network boot 
myths a while back (before xvmc issues) and it was ok but I had issues 
on my network using DHCP on the server not on my router (wireless 
clients etc blah blah) so would rather have an installed distro..

any help appreciated, been at this for about a week now and finally 
giving up... I have like 70GB of recordings I want to watch and an 
uncomfy chair in my study where the backend is - need frontend near the 


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