[dundee] Twin Displays with Presario R3000

Andrew Clayton andrew at digital-domain.net
Sat Oct 15 14:51:15 BST 2005


On Sat, 2005-10-15 at 14:00 +0100, Chase wrote:
> Hay,
>      Im having problem running my laptop with the laptop display and a
> external monitor. Ive tryed to configure xorg (see attached) but all i can
> get is both monitors to display the same thing in the same resolution.
> Where as i need to have both monitors showing the same display but with
> diffrent resolutions. I dont know what im doing wrong to get this to work.
>      In the device section of the config file is TwinView options i  
> commented
> out, while they work, i would rather have both displays show the same
> information and with the TwinView i couldnt make the laptop the main
> display. So all KDE's windows and menus were being displayed on the
> external monitor.
>      I am unsure what information you need, so i have just included the xorg

/var/log/Xorg.0.log is often useful.

> file, if you need to see any other config files please just ask and ill
> send the to you. If anyone can please help me it would be much appreciated.
> 
> #/etc/X11/xorg.conf (xorg X Window System server configuration file)
> 

[snip]

> Section "Screen"
> 	Identifier	"External Screen"
> 	Device		"NVIDIA Corporation NV17 [GeForce4 420 Mac 32M/GeForce 440 Go
> 64M]"
> 	Monitor		"External Monitor"
> 	DefaultDepth	24
> 	SubSection "Display"
> 		Depth		1
> 		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "720x400" "640x480"
> 	EndSubSection
> 	SubSection "Display"
> 		Depth		4
> 		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "720x400" "640x480
> 	EndSubSection
> 	SubSection "Display"
> 		Depth		8
> 		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "720x400" "640x480"
> 	EndSubSection
> 	SubSection "Display"
> 		Depth		15
> 		Modes		"280x1024" "1152x864" "1024x768" "800x600" "720x400" "640x480"
> 	EndSubSection
> 	SubSection "Display"
> 		Depth		16
> 		Modes		"280x1024" "1152x864" "1024x768" "800x600" "720x400" "640x480"
> 	EndSubSection
> 	SubSection "Display"
> 		Depth		24
> 		Modes		"280x1024" "1152x864" "1024x768" "800x600" "720x400" "640x480"
> 	EndSubSection
> EndSection

Typo? 280x1024 ==> 1280x1024 ??

[snip]


So you basically want cloning but with different resolutions?

I used to have this working a number of years ago, with a laptop and
external monitor (though can't remember if I had both displaying at the
same time). X config long gone. I remember it needed some trickery to
get it to use a higher resolution on the external display.

Actually, thinking about it, all I may have ended up doing was to put in
one device section, one monitor section etc, and put in the modes I
wanted, I wanted a higher res on the external display so put that first,
then put 1024x800 for the LCD, when it started up the external monitor
would take the higher res the LCD wouldn't so it would take the lower
one. 

I could be remembering this all wrong of course...


Andrew






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