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Old 03-01-08, 03:33 AM   #1
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Join Date: Mar 2008
Posts: 7
Default Dynamic detection if external VGA is present

Hi folks,
I have the following configuration problem:

I have a laptop with this graphics card:
01:00.0 VGA compatible controller: nVidia Corporation G72M [Quadro NVS 110M/GeForce Go 7300] (rev a1)

I want my xorg.conf to dynamically detect whether an external VGA is present.
If yes, setup twinview (where the external vga should be on the left side of my notebook), external resolution should be 1280x1024
If not, just use my notebook tft.
My notebook tft has resolution 1920x1600.

I have tried for months now to configure this (meanwhile switching from Kubuntu Gutsy to OpenSuse 10.3), always having the same problem:
When the external VGA is present, everything is fine.
But when it is not present,my laptop only shows the right hand part of the screen, so KDM is not fully usable and when KDE is started i can start nvidia-settings, have to blindly fish for the window and reset mode to 1920x1200.

Is this impossible to configure?

My way to configure this was using nvidia-settings, configuring both screens and merging it to my existing xorg.conf.

I could also live with having to reconfigure everytime I want to use the external VGA, but the problem is then that when I add the second screen using nvidia-settings, that fullscreen windows go over both screens, which is not what I want.

I appreciate your help,
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Old 03-01-08, 04:53 AM   #2
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Posts: 7
Default Re: Dynamic detection if external VGA is present

I got help by a friend and this seems to works now:
    Option         "TwinViewOrientation" "RightOf"
    Option         "TwinView" "1"
    Option         "TwinViewXineramaInfoOrder" "DFP-0, CRT-0"
    Option         "Metamodes" "1920x1200; CRT-0: 1280x1024, DFP-0:1920x1200; CRT-0:nvidia-auto-select, DFP-0: 1920x1200"
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