Adding second display

Verminoz · 2009-02-17 10:20:05

Hi all,
I have Archinux with KDEmod 4.2 on my laptop! I want to connect an external LCD screen to my laptop's VGA output so that I can output one of my desktop instances to the laptop's LCD (as normally) and the second desktop instance to the external LCD screen.

What must I do to achieve this? (I have never done something similar so I don't know what needs to be done )

Thank you in advance

artiom · 2009-02-17 10:32:36

There is an option in xserver called xinerama. This is what you need. Try to search the web on this term, there is a lot of documentation about multi-headed xservers.

Verminoz · 2009-02-17 11:20:06

Ok, I hooked it up and sort of magically it was enabled and it is now showing what my laptop screen is showing. Any tips on configuring? Also this screen is not widescreen and the entire desktop does not fit. Can anything be done about that?

I found that xinerama is being gradually abandoned in favor of XRandR but xrandr reports that it cannot find the second display. The output is the one below either I have the second screen connected or not.

$ xrandr -q
Xlib:  extension "Generic Event Extension" missing on display ":0.0".
Screen 0: minimum 320 x 240, current 1280 x 800, maximum 1280 x 800  
default connected 1280x800+0+0 0mm x 0mm                             
   1280x800       50.0*                                              
   1024x768       51.0                                               
   840x525        52.0                                               
   800x600        53.0                                               
   800x512        54.0
   720x450        55.0
   700x525        56.0
   680x384        57.0     58.0
   640x512        59.0
   640x480        60.0     61.0
   576x432        62.0
   512x384        63.0
   400x300        64.0
   320x240        65.0

xaiviax · 2009-02-17 13:00:11

what video card do you have, and what drivers are you using?

Verminoz · 2009-02-17 14:59:17

I have nVidia GeForce 8400M and I am using the proprietary drivers from nVidia.

rumil · 2009-02-17 15:11:33

Then run "nvidia-setting", go to "Displays", click "autodetect" and your're done :-)
Nvidia usues it's own "multihead system" called Twinview and that's how you configure it

Arch Linux

#1 2009-02-17 10:20:05

Adding second display

#2 2009-02-17 10:32:36

Re: Adding second display

#3 2009-02-17 11:20:06

Re: Adding second display

#4 2009-02-17 13:00:11

Re: Adding second display

#5 2009-02-17 14:59:17

Re: Adding second display

#6 2009-02-17 15:11:33

Re: Adding second display

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