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Hi all, I'm having a strange problem in Mandriva 2007.0 and I've been trying lots of things to solve it but I couldn't find any solution. I have a Trident ...
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  1. #1
    Just Joined! Gustav's Avatar
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    May 2007
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    Unhappy Part of the screen out of view


    Hi all,

    I'm having a strange problem in Mandriva 2007.0 and I've been trying lots of things to solve it but I couldn't find any solution.
    I have a Trident CyberBlade XP (working fine) with a Samsung SyncMaster 760B (1280x1024). The screen IS working with the correct resolution, but part of it is out of range. The monitor has no buttons to adjust its position, it has an "Auto Adjustment" feature and can be controled using MagicTune for windows (no linux version).
    I installed a program called ddccontrol (but it doesn't recognize the monitor) and also tried to edit xorg.conf (modifying ModeLine), but anything changed.

    This is my xorg.conf:
    Code:
    Section "Monitor"
        Identifier "monitor1"
        VendorName "Plug'n Play"
        ModelName "SyncMaster"
        HorizSync 30-81
        VertRefresh 56-75
    
        # Monitor preferred modeline (60.0 Hz vsync, 64.0 kHz hsync, ratio 5/4)
        ModeLine "1280x1024" 108 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
    
        # TV fullscreen mode or DVD fullscreen output.
        # 768x576 @ 79 Hz, 50 kHz hsync
        ModeLine "768x576"     50.00  768  832  846 1000   576  590  595  630
    
        # 768x576 @ 100 Hz, 61.6 kHz hsync
        ModeLine "768x576"     63.07  768  800  960 1024   576  578  590  616
    EndSection
    
    Section "Device"
        Identifier "device1"
        VendorName "Trident Microsystems"
        BoardName "Trident CyberBlade (generic)"
        Driver "trident"
        Option "DPMS"
    EndSection
    
    Section "Screen"
        Identifier "screen1"
        Device "device1"
        Monitor "monitor1"
        DefaultColorDepth 24
    
        Subsection "Display"
            Depth 8
            Modes "1280x1024" "1152x864" "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
        EndSubsection
    
        Subsection "Display"
            Depth 15
            Modes "1280x1024" "1152x864" "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
        EndSubsection
    
        Subsection "Display"
            Depth 16
            Modes "1280x1024" "1152x864" "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
        EndSubsection
    
        Subsection "Display"
            Depth 24
            Modes "1280x1024" "1152x864" "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
        EndSubsection
    EndSection
    As I've seen, this is a common problem with all Samsung's SyncMaster screens. I would really appreciate any help,
    thaks

  2. #2
    Linux Engineer aliov's Avatar
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    Can you go to the out of view part with the keyboard arrow keys ?
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  3. #3
    Just Joined! Gustav's Avatar
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    No aliov, I tried and there's no way to adjust the screen using the keyboard. Part of the screen is out of range (moved to the right) leaving a black "column" on the left side of the monitor.
    I'm sure I need to correct the xorg.conf file. I once used the xorg.conf code of a similar monitor and I was able to change the screen position (but I couldn't centre it).

    Thanks, I'm still searching for solutions...

  4. #4
    Super Moderator devils casper's Avatar
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    Section "Monitor"
    Identifier "monitor1"
    VendorName "Plug'n Play"
    ModelName "SyncMaster"
    HorizSync 30-81
    VertRefresh 56-75
    check Monitor's Manual. are HorizSync and VertRefresh rates correct?
    It is amazing what you can accomplish if you do not care who gets the credit.
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  5. #5
    Just Joined! Gustav's Avatar
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    Yes, I checked the manual and both HorizSync and VertRefresh values are ok.

    I tried with the xorg.conf of a SyncMaster 740N, that has the same HorizSync and VertRefresh rates. The only line that changed was the "ModeLine" and the screen's position changed leaving a black column on the right part of the monitor... I can't centre it.

  6. #6
    Just Joined! Gustav's Avatar
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    Smile

    I finally solved this problem after installing Mandriva 2008. For those using a SyncMaster 760B, just configure the screen as a Flat Panel 1280x1024.
    Hope this helps

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