You may also be able to grep your /proc or /sys virtual file systems for the device if it is shown and have a automatically decide for you...
--)> oRiGiNaL MeSsAgE
From --)> Austin Godber <godber@uberhip.com>
Date --)> Fri, 10 Sep 2004 12:32:59 -0400
Subject --)> Re: Fwd: [SLE] TwinView Multi-Monitors on a laptop???
> In the past I have used a script like this:
>
> #!/bin/sh
>
> echo Choose external resolution:
> echo " 1.) 800x600"
> echo " 2.) 1024x768"
> read res
> if [ "$res" == "1" ]; then
> startx -- -screen Screen2
> fi
> if [ "$res" == "2" ]; then
> startx -- -screen Screen1
> fi
>
> to choose from two different Screen sections (to specify the resolution
> of my external display to work on LCD projectors) when starting X. You
> might be able to do the same by having two uniqely named device sections
> and calling them in a similar fashion.
>
> startx -- -device dual
>
> Then again, maybe you can't have two device sections ... actually you
> should be able to since you can have two video cards.
>
> Austin
>
> Gene Holmerud wrote:
> > Thanks to Eric "Shubes of Phoenix Linux User Group who corrected my
> > XF86Config, TwinView works (mostly) on my HP laptop under 9.1. The only
> > inconvience is needing to comment/uncomment a few lines depending upon
> > whither the external monitor is present or not. When configured for an
> > external monitor, TwinView insists on using the external as the prime
> > monitor, hence no system icons available if no external.
> >
> > The following is the "Device" section of XF86Config for having an
> > external monitor (but with non-dual statements commented):
> >
> > Section "Device"
> > BoardName "0x031a"
> > BusID "1:0:0"
> > Driver "nvidia"
> > Identifier "Device[0]"
> > VendorName "NVidia"
> > Option "TwinView" "True"
> > # Option "ConnectedMonitor" "DFP, CRT"
> > Option "TwinViewOrientation" "CRT-0 RightOf DFP-0"
> > Option "MetaModes" "1024x768, 1024x768; 800x640, 800x640;
> > 640x480, 640x480"
> > # Option "MetaModes" "NULL, 1024x768; NULL, 800x640; NULL, 640x480"
> > Option "HorizSync" "CRT-0: 31-64, DFP-0: 31-64"
> > Option "VertRefresh" "CRT-0: 50, DFP-0: 60"
> > # Option "HorizSync" "DFP-0: 31-64"
> > # Option "VertRefresh" "DFP-0: 50-78"
> > Option "SecondMonitorHorizSync" "CRT-0: 31-64"
> > Option "SecondMonitorVertRefresh" "CRT-0: 50-78"
> > EndSection
> >
> > The following is the "Device" section for not having an external
> > monitor, but saving the dual statements as comments.
> >
> > Section "Device"
> > BoardName "0x031a"
> > BusID "1:0:0"
> > Driver "nvidia"
> > Identifier "Device[0]"
> > VendorName "NVidia"
> > Option "TwinView" "True"
> > # Option "ConnectedMonitor" "DFP, CRT"
> > Option "TwinViewOrientation" "CRT-0 RightOf DFP-0"
> > # Option "MetaModes" "1024x768, 1024x768; 800x640, 800x640;
> > 640x480, 640x480"
> > Option "MetaModes" "NULL, 1024x768; NULL, 800x640; NULL, 640x480"
> > # Option "HorizSync" "CRT-0: 31-64, DFP-0: 31-64"
> > # Option "VertRefresh" "CRT-0: 50, DFP-0: 60"
> > Option "HorizSync" "DFP-0: 31-64"
> > Option "VertRefresh" "DFP-0: 50-78"
> > Option "SecondMonitorHorizSync" "CRT-0: 31-64"
> > Option "SecondMonitorVertRefresh" "CRT-0: 50-78"
> > EndSection
> >
> > Hope this helps anyone else trying to do the same thing.
> >
> > Gene
> >
> > ------- Forwarded message -------
> > From: Gene Holmerud <geneous@cox.net>
> > To: "suse-linux-e@suse.com" <suse-linux-e@suse.com>
> > Subject: [SLE] TwinView Multi-Monitors on a laptop???
> > Date: Wed, 11 Aug 2004 21:13:12 -0700
> >
> >> Was: [SLE] Nvidia now OK -- But how about Multi-Monitors on a laptop???
> >>
> >> James Ogley's reference to:
> >> Appendix R of
> >> ftp://download.nvidia.com/XFree86/Linux-x86/1.0-6111/README.txt
> >> helped a bunch! So did a pretty good example at
> >> http://weller.ws/toshiba/XF86Config-4.
> >>
> >> Unfortunately, I'm still getting a clone of the laptop display on the
> >> external CRT. But since it has a lower resolution that the laptop
> >> itself,
> >> an oversize display is on the laptop requiring scrolling. If I get a
> >> desktop extension onto the external monitor, I will buy an external that
> >> matches the laptop.
> >>
> >> I'm attaching the text of my XF86Config and XFree86.0.log (excerpts
> >> due to
> >> this list's size limit). If somebody has experienced this, I'd like some
> >> tips.
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