Hi.

I'm trying to find a way around a problem I have with my linux box (P4 3.4Ghz, 1GB of RAM, nvidia 6500 in PCI-Express x16)

The quality of HD channels from my DVB-T card is terrible. It has loss of sync between sound and video, image will freeze for 1s at a time etc...
Reading various web site,people it seems that the suggestion around would be to unable XvMC on the nividia.
If I unable this option in Settings -> TV Settings -> Playback, change from default to XvMD, then trying to watch TV again will always give me a Core dump

In the console, I see "Error: Could not open XvMC port ...
You may wish to verify that your DISPLAY
environment variable does not use an external network connection
You may also wish to verify that /etc/X11/XvMCConfig contains the correct
vendor's XvMC library"

Of course I checked those config files and they contain the right library name

I also set the variable XVMC_DEBUG=2 and I see in the console:
"NV-XVMC (WARN): failed to allocate AGP DMA buffer
NV-XVMC (WARN) allocated buffer DMA buffer instead
NX-XVMC (WARN): failed to allocate subpicture in AGP memory

I've tried various version of nVidia drivers as well as MythTV 0.18.1 and the last SVN version (including 20 minutes ago: revision #8724)

I also tried with the OpenGL vsync option, but it made no difference
Well, first I do not understand why my system isn't able to decode TVHD in software only, no doubt a 3.4Ghz P4 has enough guts to do so... While watching SD material, system is 92.5% idle, when watching HD material (or more accurately, trying to watch it, it's 95.3% idle)

If you have any recommendations on how to get around this, that would be really appreciated.

Thank you
Jean-Yves
ls

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Jean-Yves Avenard

Hydrix Pty Ltd - Embedding the net

www.hydrix.com | fax +61 3 8573 5200 | office +61 3 8573 5299 | direct +61 3 8573 5200


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