[mythtv-users] live tv video stops after about 3 or 4 seconds

[steve]

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Hi,

first attempt at using latest nvidia driver and xvmc, (fx5200) and an
upgrade to intrepid all at the same time.  yeah, I know, if it works
dont upgrade!?!... happened by accident.  had a ppa.ubuntu testing
repository enabled for the latest mythnettv, ran updates, and it screwed
everything up.  finally back to working again after a near overnight
session.

live tv and recordings go blank after a few seconds, still get sound
though.  tried all playback profiles, using cpu-- at the moment.  what I
dont understand is even if I disable and remove the nvidia driver the
same thing happens, so I dont think it has anything to do with xvmc or
nvidia driver?


recent frontend log

2008-10-17 09:15:39.425 TV: Attempting to change from None to WatchingLiveTV
2008-10-17 09:15:39.426 Using protocol version 40
2008-10-17 09:15:41.433 DPMS Deactivated
2008-10-17 09:15:42.380 AFD: Opened codec 0x9b00870, id(MPEG2VIDEO_XVMC)
type(Video)
2008-10-17 09:15:42.381 AFD: codec MP2 has 2 channels
2008-10-17 09:15:42.381 AFD: Opened codec 0x9a9f2a0, id(MP2) type(Audio)
2008-10-17 09:15:42.503 Opening audio device 'default'. ch 2(2) sr 48000
2008-10-17 09:15:42.503 Opening ALSA audio device 'default'.
2008-10-17 09:15:42.560 VideoOutputXv: XvMC Adaptor Name: 'NV17 Video
Overlay'
2008-10-17 09:15:42.589 NVP: Forcing decode extra audio option on.
                        XvMC playback requires it.
2008-10-17 09:15:42.593 OSD Theme Dimensions W: 640 H: 480
2008-10-17 09:15:43.004 TV: Changing from None to WatchingLiveTV
2008-10-17 09:15:43.015 Realtime priority would require SUID as root.
2008-10-17 09:15:43.019 XvMC: picture structure FRAME
2008-10-17 09:15:43.117 Video timing method: USleep with busy wait
2008-10-17 09:15:43.151 VideoOutputXv Error: ProcessFrameXvMC: Failed to
get OSD lock
2008-10-17 09:15:49.434 NVP: prebuffering pause
2008-10-17 09:16:01.899 NVP: prebuffering pause
2008-10-17 09:16:13.532 NVP: prebuffering pause
2008-10-17 09:16:36.278 NVP: prebuffering pause
2008-10-17 09:16:47.954 WriteAudio: buffer underrun



relevant portion of xorg.conf


Section "Device"
      Identifier "Videocard0"
      Driver  "nvidia"
      Option "UseEvents" "true"
      Option "XvmcUsesTextures" "false"  # necessary for color Chromakey
OSD)
      Option "NVAGP" "1"                 # some users report 2 or 3
works better
 EndSection

Section "Extensions"
      Option "Composite" "Disabled"
 EndSection





- --
Steve Reilly

http://reillyblog.com


"Any people anywhere, being inclined, and having the power, have the
right to rise up and shake off the existing government, and form a new
one that suits them better."   Abraham Lincoln 1848
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