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HTPC HTPC / purevideo / hardware acceleration help

Discussion in 'Hardware' started by Kode, 14 Jul 2008.

  1. Kode

    Kode New Member

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    Hi,

    Last weekend i bought a Samsung 40" 6 series TV, it looks great, i have a Samsung 5.1 home theatre system set up to it, an xbox 360, and a wii, but i wanted to connect a htpc to it as well, im on a budget at the moment so i built a pc out of components from old pcs, and bits that were lying around.

    CPU: FX-55
    Mobo: MSI K8N Diamond Plus SLi mother board
    GFX: XFX 7900GTX (have got 2, but didnt bother adding the second one in)
    RAM: 2GB OCZ Platinum memory

    Unfortunately i cant seem to get any hardware acceleration working on the 7900 and the CPU doesnt really seem up to 1080p, i tried updating the drivers and it went very wrong, so i had to revert back to the drivers that came with the card.

    Does anyone have any suggestions, either for a different gfx card, i dont want to spend much though, or a way to get DXVA working.

    Would using Vista Premium work any better than XP?

    Also, when i installed WMP11 it got a little bit further before stuttering.
     
    Last edited: 16 Jul 2008
  2. deltaworld

    deltaworld New Member

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    I used to have a AMD 64 3500 and my experience with single core CPU's is that they cannot cope with 1080p unless the card you have supports PureVideo HD to take the power away from the CPU and through the GPU, I don't think the 7900 has HD capabilities so with a single core and a non HD gfx you may find it difficult to get stutter free 1080p even on XP, definately not worth going to Vista as this will use more system resources.
     
  3. Kode

    Kode New Member

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    Thats from http://www.nvidia.com/page/geforce_7900.html

    So supposedly it can do purevideo
     
  4. Nexxo

    Nexxo * Prefab Sprout – The King of Rock 'n' Roll

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    Actually, the hardware requirements even for HD TV are pretty low. Your CPU should comfortably cope (although dual core is in my experience better because you can spread work load), and the 7900 should be (much) more than adequate.

    If you have a DVB TV tuner card, keep in mind that they are way more picky about a TV signal than ordinary DVB boxes, so even though the picture looks OK, there may be some stuttering. But more likely is that you have a driver problem of sorts.
     
  5. Kode

    Kode New Member

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    The file im trying to play is a 1080p x264 @ 14 Mbps .mkv if that helps?

    I registered on the XFX website and downloaded drivers for the 7900GTX from there, i will try them tonight, see if it makes any difference, but im not hopefull.

    What about this card http://www.ebuyer.com/product/140585
     
    Last edited: 14 Jul 2008
  6. Kode

    Kode New Member

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  7. Kode

    Kode New Member

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    Ok, bit of an update, i installed vista, powerdvd, and k lite codec pack, it didnt make a difference, then i tried messing with graphedit, i changed the graph to go through the cyberlink codec instead on ffdshow, and then through evr, and it actually seemed to work, i just have no idea how to make the change permanent, lol, cuz when i close it asks if i want to save, i say yes it says access denied, if i run the program as administrator i cant drag the file into graphedit :(
     
  8. Gateway

    Gateway ...

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    I had the same problem playing high-definition .mkv files. I did some research and found this awesome player (was using VLC since ever before) called KMP player, its a korean developed video player really, REALLY good xD. Since i started using it i had no more crashes and freezes and strange things(that happen a lot with a VLC) and my high-def files play like a charm.
    Give it a try:

    Main website link: http://www.kmplayer.com/forums/index.php
    Dowload link: http://imgcdn.pandora.tv/pan_img/KMP/Download/kmp.exe

    PS. Damn...I always forget about something. You can try using Media Player Classic too, together with Core AVC decoder. It works fine to me, but i had some subtitles problems so i changed to KMP, the other problem is that Core AVC is not free, but you can dowload the trial to try it.

    Media Player Classic Dowload: http://sourceforge.net/project/showfiles.php?group_id=82303&package_id=84486
    Core AVC dowload link:http://www.coreavc.com/
     
    Last edited: 15 Jul 2008
  9. Kode

    Kode New Member

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    Thanks Gateway, i'll give that a shot, would be nice to be able to get hardware acceleration running on a standard wmp or wmc though =/
     
  10. Kode

    Kode New Member

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    I think the only thing stopping me from getting this working properly now is not being able to set the merit levels of the filters, whenever i try to set the merit level in gspot it wont let me, ive tried running the program as administrator, but nothing seems to work, does anyone have any ideas?

    http://www.ebuyer.com/product/139617 <-- anyone know if this would do as a cheap upgrade to my system?
    http://www.powercolor.com/global/products_features.asp?ProductID=1980 <-- specification of above card from manufacturers site

    Also would upgrading my card have any benefit? or would i still have these issues with trying to set filter merits?
     
  11. Kode

    Kode New Member

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    Does anyone have any suggestions on whether it would be better to just upgrade my gfx card to a 3850 or something, or change the entire system? And if changing the entire system, any recommendations on either going for something with a discrete gfx card or getting onboard? Bear in mind i dont have a lot of money to spend on the project
     
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