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Old 11-03-2003, 12:26 PM   #1
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16/9 aspect ratio

The QUESTION: how do I force Linux to a 16/9 aspect ratio with a resolution of 1440x900?

I work on a dual boot XP/Linux RH7.3 Toshiba Satellite P20. The video card is a Geforce FX5200 Go using the Linux driver. I require in Linux, a 1440x900 resolution(16/9), the system defaults to 1024x768(4/3). The /var/log/XF....log file reports "1440x900(no mode of this name)"...."default mode is 1024x768".... The required resolution works fine in XP. All documentation states everything is compatiable.

Thanks Gavin
Old 11-03-2003, 12:38 PM   #2
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Look in the /etc/X11/XF86Config file for something like this:
Section "Screen"
    Identifier  "nvidia1screen"
    Device      "nvidia1"
    Monitor     "iiyama"
    DefaultDepth 24
    Subsection "Display"
        Depth       24
        Modes       "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
        ViewPort    0 0
Put the resolution you want in the beginning of the list.
Old 11-03-2003, 02:21 PM   #3
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Thanks for the quick response. Been there, done that, got the tatoo.....
My first entry is/was "1440X900", which produced a "no mode of this name" warning msg.

I guess I should be asking if there is any aspect ratio other than 4:3 and where/how it is defined.

Old 11-03-2003, 02:27 PM   #4
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Checkout this modeline generator:
Look for this section:
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Philips 170W"
DisplaySize 370 220
HorizSync 30.0 - 64.0
VertRefresh 56.0 - 75.0
Option "dpms"
Modeline "1280x768" 108 1280 1328 1440 1688 768 771 777 806 +hsync -vsync
Add a modeline like that.
Old 11-03-2003, 03:40 PM   #5
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Don't know if this is relevant but, mathematically speaking, 1440x900 isn't 16/9, it's 14.4/9.

16/9 would be either 1600x900 or 1440x810.

--- Cerbere


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