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Thread: Guide to 1080p in mythtv/mythbuntu with Nvidia

  1. #1
    Join Date
    Oct 2007
    Vanløse, Denmark

    Lightbulb Guide to 1080p in mythtv/mythbuntu with Nvidia

    Hi all mythbuntu and mythtv users.

    I've been putting together my own mediacenter the past days, and i had som problems concerning the activation of the VDPAU acceleration (ie. H.264).

    First of all i installed mythbuntu 8.10.
    ASUS motherboard with a Geforce 8300
    AMD Athlon 4850E
    ASUS Mycinema 7131
    500 GB WD Greenpower HD
    2 gb RAM
    Samsung 40" flatscreen TV via HDMI

    I downloaded a 1080p sample and tried playing it in mythtv (mplayer) and my cpu was loaded 100% and the audio and video was unsynced and the picture was laggy.

    So what to do to to get the best video result using VDPAU acceleration(and it can be done very easily when knowing what to do):

    First of all install mythtv/mythbuntu
    Open your Synaptic Package manager.
     deb intrepid release
    to your repositories.
    Install the key.
    Update your synaptic package manager and install all upgrades.
    Your mythtv and nvidia driver should be updated now.


    Open mythtv and go setup a playback profile where choosing the nvidia vdpau acceleration as decoder and VDPAU as renderer. (I use no deinterlacing)
    Then under Video settings>Player settings and your default video player should be
    mplayer -fs -zoom -quiet -vo vdpau -vc ffh264vdpau,ffvc1vdpau,ffmpeg12vdpau,ffwmv3vdpau %s
    That should give you a player able to play FullHD video without chocking the life out of your CPU.
    At last i opened a terminal and wrote:
    sudo nvidia-xconfig --no-composite
    This made the video stop flickering/interlacing and gave me a perfect picture.

    Hope this helps.

    Last edited by knutz; March 29th, 2009 at 02:52 PM.

  2. #2
    Join Date
    Dec 2004
    Atlanta, GA USA
    Ubuntu Development Release

    Re: Guide to 1080p in mythtv/mythbuntu with Nvidia

    thanks for this. it will go into my "how to" archive.

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