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Thread: Sound but no video after graphics card upgrade

  1. #1
    Join Date
    Mar 2008
    Location
    New Zealand
    Posts
    9

    Sound but no video after graphics card upgrade

    Hiya,

    I've been using GBPVR for six months with Freeview in NZ on an AverTV card with no issues. Recently my video card on my computer died and I have now replaced it with a 9800 GTX+ (from a 8800 GTS 320). Now whenever I try to view a channel I get the audio perfectly, but no video. It's a completely black screen (but it does show the overlay with the program information).

    I have tried reinstalling GB PVR, and Power DVD 7.3, but neither have fixed it. Also, the TV works fine in the AverTV program, however that has tearing issues with the video (and always has). Updated graphics card drivers were installed with the new video card.

    The config and log files for my setup are here:
    http://www.sonic.net.nz/gbpvr/

    Other (non-TV) video in GB PVR displays fine.

    Thanks in advance!

  2. #2
    Join Date
    Oct 2006
    Location
    Hamilton New Zealand
    Posts
    4,550
    try changing the settings under encoder-pass through /live preview (misc tab)

  3. #3
    Join Date
    Mar 2008
    Location
    New Zealand
    Posts
    9
    I have changed encoder pass through, none of the options make any difference (none, encoder pass-through, ffdshow raw filter, Alperysoft deinterlace filter).

    In case it helps, I'm using the following NVidia driver version: 6.14.11.7813 (178.13 drivers).
    Last edited by Sonic; 2008-10-11 at 09:05 AM.

  4. #4
    Join Date
    Oct 2006
    Location
    Hamilton New Zealand
    Posts
    4,550
    is live preview selected

  5. #5
    Join Date
    Mar 2008
    Location
    New Zealand
    Posts
    9
    Yes, and if I turn it off it gives me a black screen when I switch to Live TV, then goes back to the menu. Having the option on just gives me the usual sound but no video.

  6. #6
    Join Date
    Nov 2003
    Location
    NextPVR HQ, Wellington, New Zealand
    Posts
    76,173
    live preview should be enabled.

    What H264 video decoder do you have selected on the playback tab of the config app?

  7. #7
    Join Date
    Mar 2008
    Location
    New Zealand
    Posts
    9
    Here's the setup for the decoders


  8. #8
    Join Date
    Nov 2003
    Location
    NextPVR HQ, Wellington, New Zealand
    Posts
    76,173
    There have been some reports of the newest versions of the Cyberlink H.264 refusing to work in third party apps. This might be the problem here.

    Reproduce problem, then zip and attach the logs and I'll take a look.

  9. #9
    Join Date
    Jan 2010
    Location
    New Zealand
    Posts
    2
    Hi there Sonic

    Any progress on this? I'm having exactly the same issue.

    Scoopy

  10. #10
    Join Date
    Oct 2009
    Location
    San Jose, California
    Posts
    350
    Try the MPC-HC 264 codec... guess the problem might have been solved after a year... .
    Server: NPVR 3.2.9, 32" panel, W7 Pro, m-ITX, i3-2120, 4G DRAM, DCR-2650, SD EPG, xbmc "plugin" for Movies/Hulu/ESPN/YouTube/IceFilms
    Client: NPVR 3.2.9, 23" panel, Acer Revo 1600, W7 Pro, MoCA networked

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