Re: 1600x1200-100Hz on FC2 with Radeon 7000

From: B.L. (bb_at_rogers.com)
Date: 05/29/04

  • Next message: B.L.: "Re: 1600x1200-100Hz on FC2 with Radeon 7000" 
    Date: Sat, 29 May 2004 18:13:36 GMT

    So, here is the relevant section from my xorg.conf:

    -----------------------------
    Section "Monitor"
       Identifier "Monitor0"
       VendorName "Monitor Vendor"
       ModelName "HP P1130"
       DisplaySize 400 300
       HorizSync 30.0 - 130.0
       VertRefresh 48.0 - 170.0
       Option "dpms"
       Modeline "1600x1200" 417.70 1600 1808 2312 3272 1200 1200 1205 1276
    EndSection

    Section "Device"
       Identifier "Videocard0"
       Driver "radeon"
       VendorName "Videocard vendor"
       BoardName "ATI Radeon 7000"
    EndSection

    Section "Screen"
       Identifier "Screen0"
       Device "Videocard0"
       Monitor "Monitor0"
       DefaultDepth 16
       SubSection "Display"
         Viewport 0 0
         Depth 16
         Modes "1600x1200"
       EndSubSection
    EndSection
    -----------------------------

    This produces 2048x1536 (120.3Khz/75Hz) !?

    So, you say that the following line should work:
    Modeline "1600x1200" 150.00 1538 1808 2312 2080 1200 1200 1205 1276

    I'll try it in a moment and let you know,....

    Hactar wrote:
    > In article <e%Wtc.5143$JmE.3533@news04.bloor.is.net.cable.rogers.com>,
    > B.L. <bb@rogers.com> wrote:
    >
    >>I just tested modeline:
    >>Modeline "1600x1200" 417.70 1600 1808 2312 3272 1200 1200 1205 1276
    >
    >
    > Does your video card do 417.7 MHz pixel clock?
    >
    > You're allowing 4.003 us for horizontal retrace ((3272-1600)/417.7) ; I only
    > allow 3.627 us ((2080-1530)/150). If you reduce that, you can keep the
    > 100 Hz refresh rate and reduce the 417 MHz pixel clock. Maybe my monitor is
    > just more tolerant.
    >
    >
    >>2. adding it in monitor section and removing all other resolutions
    >>except 1600x1200
    >> - this gave me 120.3kHz/75Hz with 2048x1536 resolution
    >
    >
    > That's not according to that description at all. Is that name ("1600x1200")
    > the first one referenced on the "Modes" line? (xorg.conf may be different;
    > this is from XFree86Config.)
    >
    >
    >>who can calculate Modeline for 1600x1200 on this monitor.
    >
    >
    > http://www.smrtlc.ru/~apetrov/apetrov/cgi-bin/xtiming.pl ?
    >

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