[mythtv-users] Myth Setup Problems - lirc, video, dvb tuning

Stroller linux.luser at myrealbox.com
Thu Feb 15 12:45:04 UTC 2007


On 15 Feb 2007, at 10:10, Richard Horton wrote:
> ...
> I am an experienced developer on windows, and a newbie to linux.

Hi there,

Could I possibly trouble you by asking that you post in plain text?  
When I received your email the text displayed very small on my  
system, a size not conducive to reading with my blurry early-morning  
eyes, and it was an inconvenience to reach for the keyboard &  
increase the font size. If you add mythtv-users at mythtv.org to your  
Outlook address book then I think there is an option to "send to this  
recipient only in plain text".

> I have ... an nvidia 7950 card.
>
> ...
> 2. I can't run mplayer with -vo xv.  When I do, it fails with the  
> message in output A below.  When I run myth and watch tv, the  
> output B shows that there is also a problem initialising xvideo.
> Is xvideo required for mythtv or can I run in another mode?  I  
> switched to opengl but that only seems to be the menu system - live  
> video is still in xvideo.  This appears to be a driver issue.  Any  
> clues on finding the fault?
>
> ...
> Output A - mplayer fails on -vo xv:
>
> Xlib:  extension "XFree86-VidModeExtension" missing on display ": 
> 0.0". ##note this always displays, even in gl2 mode, which worked
> Xlib:  extension "XVideo" missing on display ":0.0".
> [VO_XV] Sorry, Xv not supported by this X11 version/driver
> [VO_XV] ******** Try with  -vo x11  or  -vo sdl  *********
> Error opening/initializing the selected video_out (-vo) device.
>
>
> Output B - myth fails to start in xvideo mode:
>
> Xlib:  extension "XVideo" missing on display ":0.0".
> 2007-02-07 20:06:06.368 VideoOutputXv Error: XVideo output  
> requested, but is not supported by display.
> 2007-02-07 20:06:06.369 AFD: Opened codec 0x6bcc710, id(MPEG2VIDEO)  
> type(Video)
> 2007-02-07 20:06:06.398 AFD: Opened codec 0x6bd66e0, id(MP2) type 
> (Audio)
> 2007-02-07 20:06:06.458 Opening OSS audio device '/dev/dsp'.
> Xlib:  extension "XVideo" missing on display ":0.0".
> 2007-02-07 20:06:06.515 VideoOutputXv Error: XVideo output  
> requested, but is not supported by display.
> 2007-02-07 20:06:06.517 VideoOutputXv: XvMCTex: Init failed
> 2007-02-07 20:06:06.517 VideoOutputXv: Falling back to X shared  
> memory video output.
>                               *** May be slow ***

I _think_ this indicates that your graphics card drivers don't  
support hardware acceleration.
http://en.wikipedia.org/wiki/X_video_extension
http://www.mythtv.org/wiki/index.php/XvMC

Have you installed the binary nVidia drivers?

As Mr Wilson observes "if you didn't know about the binary nvidia  
driver, I can almost guarantee you're using the open source nv  
driver, which is utterly craptastic ..."
http://www.gossamer-threads.com/lists/mythtv/users/253025#253025

Sorry I can't help with your other problems.

Stroller.





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