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    M17x R2: After HD8970m upgrade - Any chance to get the display port back working?

    Discussion in 'Alienware 17 and M17x' started by D.VINE, Oct 15, 2014.

  1. D.VINE

    D.VINE Notebook Enthusiast

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    The head line basically says it all.

    I try to get a 2560x1080 resolution to work via HDMI...theoretically it should work...but haven't figured it out yet.
    The displayport should easily solve that problem of a supposedly max 1920x1080 resolution (monitor max resolution is 2560x1080)
    Problem: Displayport is not working.

    Dell Card
    Bios: BR44618.001
    Plug'n'Play installation, fantastic M17x R2 life extender upgrade :thumbsup:

    Wanted to try a 4k Monitor...decided to go for a 21:9 Monitor.
     
    D.VINE, Oct 15, 2014
    #1
  2. TriBeard

    TriBeard Notebook Evangelist

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    I remember this being an issue back when I had my r2. I don't remember though if they ever got something working to get around it or not. Hopefully someone else will have some more knowledge for you.
     
    TriBeard, Oct 15, 2014
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  3. D.VINE

    D.VINE Notebook Enthusiast

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    My problem is solved:

    Usually HDMI is limited to 165 MHz pixel clock unless the video driver is patched. For a 2560x1080 Resolution a 181MHz Pixel clock is needed.
    There is a patch called "pixel clock patcher" for ATI/AMD and NVidia, which fixed that limitation.
    My HDMI connection recognizes and provides the full resolution now, BUT the patch breaks HDCP support/video acceleration.
     
    D.VINE, Oct 16, 2014
    #3