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Thread: ATI HD4870 and Catalyst 9.6 & 9.7 flickering

  1. #1
    Join Date
    Jul 2009

    Default ATI HD4870 and Catalyst 9.6 & 9.7 flickering


    I have read so many threads about people having problem with their ATI cards.
    But i haven't found any answer to my problem:

    I just bought a ATI HD4870. I've installed the new Catalyst 9.7 from ATI (also tried the proprietary one).
    But my problem is that when i start for example Xbox Media Center, a game or just try to bring up the preferences for my screen it starts to flicker and while it flickers the computer gets terribly slow.
    I don't have this problem when I'm watching movies with VLC or Mplayer(though it flickers while the program is starting) or starting any other "dekstop" programs.

    btw i've tried to disable all effects in compiz but it makes no difference, have even tried Metacity with the same result.

    Does any one else have this problem? or even better, a solution.


  2. #2


    Looks like I'm in the same boat as you. I'm not exactly sure what's causing the problem, either. I went back to Catalyst 9.6 and it still does the same thing. Even with Metacity. Same exact symptoms.

    I'll scour around looking for a solution to this, but for now, I'm stumped.

  3. #3
    Join Date
    Jun 2008
    New Zealand


    The problem is a broken randr implementation in fglrx.

    To disable randr, issue this command

    aticonfig --set-pcs-str=DDX,EnableRandR12,FALSE
    Last edited by poofyyoda; 07-28-2009 at 03:20 AM.

  4. #4
    Join Date
    Jul 2009



    I'll try that as soon as i get home from work!

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