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Old 03-07-2007, 06:12 PM   #1
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Registered: Dec 2006
Location: CA
Distribution: Fedora
Posts: 7

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Resolution problem on widescreen

I have ATI FireGL graphics card (with proprietary ATI driver installed) and widescreen Viewsonic monitor, which can operate at 1680x1050 resolution. I have put a modeline to my xorg.conf, like this:

Modeline "1680x1050" 149.00 1680 1760 1944 2280 1050 1050 1052 1089

However, even though the monitor seems to operate at 1680x1050 resolution, I do not see my whole desktop on the screen. If I look at the log file, I see:

(--) fglrx(0): Virtual size is 1920x1080 (pitch 1920)

How do I fix this so that the virtual size is the same as the resolution of the monitor (1680x1050)?

Thanks in advance.
Old 03-07-2007, 06:19 PM   #2
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Registered: Dec 2006
Location: CA
Distribution: Fedora
Posts: 7

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Here is my xorg.conf file. I tried with both commented and uncommented HorizSync and VertRefresh values. When they are commented out, I can see more of my desktop on the screen.

Section "ServerLayout"
        Identifier     "single head configuration"
        Screen      0  "Screen0" 0 0
        InputDevice    "Keyboard0" "CoreKeyboard"

Section "InputDevice"
        Identifier  "Keyboard0"
        Driver      "kbd"
        Option      "XkbModel" "pc105"
        Option      "XkbLayout" "us"

Section "Monitor"

        Identifier   "Monitor0"
        #HorizSync 30-82
        #VertRefresh 50-75
        Modeline "1680x1050"  149.00  1680 1760 1944 2280  1050 1050 1052 1089
#       ModeLine "1680x1050" 146.2 1680 1784 1960 2240 1050 1053 1059 1089 +hsync +vsync

Section "Device"
        Identifier  "Videocard0"
        Driver      "fglrx"

Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor    "Monitor0"
        DefaultDepth     24
        SubSection "Display"
        Depth 8
        Modes "1680x1050" "1280x1024"
        ViewPort 0 0

Section "Extensions"
        Option      "Composite" "Disable"


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