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  1. #1

    display sync problem?

    I'm a total newbie and hope someone can help out. Just installed SUSE 10.1 with Matrox G400 dualhead card and a Proview PRO-730 17" CRT monitor. I have been unable to set the display at anything above 640x480 without getting a distorted image (bowed out at sides, squished vertically). Have tried VESA monitor option at several sizes and refresh rates plus several Proview monitors (mine is not listed). I have also adjusted the min/max frequencies. Any ideas?


  2. #2

    Talking Got it!

    Figured it out. I found a video timing calculator that outputs a variable string that can be entered into the xf86config file. The calculator is at:

    My monitor would display correctly in Win98SE when set at 800x600 with a vert refresh of 85 Hz, so I plugged those numbers into the calculator.

    It output (for 800x600, 85 Hz) the following string:

    Modeline "800x600" 56.25 800 832 896 1048 600 601 604 631 +hsync +vsync

    I just edited one of the 800x600 lines in xf86config with Kwrite, but left out the +hsync and +vsync because none of the other lines had them. They are sync pulse polarity identifiers and may be set as "+" by default. I also set the monitor to "VESA" and tweaked the sync rate values so that 85 Hz vert and 56.25 Khz were available by using the normal utility.
    Last edited by 1969912; 06-07-2006 at 11:21 AM. Reason: fix link

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