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Thread: low performance in video 1080p

  1. #1
    Join Date
    Aug 2009

    low performance in video 1080p

    I am trying to play some .mkv 1080p videos on Ubuntu 9.04, I tried VLC, smplayer, etc... but still have some problem with the performance, some framedropping and so.

    The point is in Windows work perfect with the VLC. I guess is something going on with the nvidia configuration and in somewhere its activate some kind of postprocessing for quality, I have a GeForce 9800GT using last drivers 180 and a Q6600 processor with 2 Gb RAM, so the machine is not the problem.

    My question is, where and what I must start looking for? I dont know if the nvidia-setting has something to do with the video output, or if I must change something in the xorg. I am a little bit lost.

  2. #2
    Join Date
    Jun 2006
    Timisoara, Romania
    Ubuntu 9.04 Jaunty Jackalope

    Re: low performance in video 1080p

    Nvidia cards starting with 8 series can take advantage of VDPAU (Video Decode and Presentation API for Unix). Here is a thread that details VDPAU a bit and shows how to get it working:

    You should see a significant performance boost and minimum CPU usage while usgin VDPAU.

    Good luck!

  3. #3
    Join Date
    Jun 2009
    Melbourne, Australia
    Ubuntu 10.10 Maverick Meerkat

    Re: low performance in video 1080p

    You can add the latest Mplayer and SMPlayer repository and get those apps and you can take advantage VDPAU out of the box. Definetly recommended

    Smplayer acts as a frontend for MPlayer and in the preferences menu just choose VDPAU as your output.

    This will work as long as your Nvidia card supports it.
    Last edited by xenogia; September 8th, 2009 at 03:35 AM.
    AMD Phenom x6 1090t @ 4ghz | Geforce GTX 275 896mb | 8GB G.Skill DDR3 1600 RAM | 4 x 1tb WDD Drives & 500gb WDD Drive | Auzentech Prelude X-Fi | 2 x BENQ 2200HD LCDs | Ubuntu 12.04

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