Visit the LQ Articles and Editorials section
Go Back > Forums > Linux Forums > Linux - Desktop
User Name
Linux - Desktop This forum is for the discussion of all Linux Software used in a desktop context.


  Search this Thread
Old 01-07-2009, 07:12 PM   #1
LQ Newbie
Registered: Jan 2009
Posts: 7

Rep: Reputation: 0
how to configure xorg.conf for 3 monitors

I recently installed a Dell machine with dual nVidia video cards.
I ran system-config-display to configure xorg.conf and it has worked
fine for 2 of the 3 monitors. I didn't see anything in
system-config-display that would enable me to configure xorg.conf for
3 monitors. Did I miss something?? Is there a way to modify xorg.conf
to have 3 monitors??

Thanks in advance,
Old 01-08-2009, 01:04 PM   #2
Registered: Jun 2006
Location: Ontario, Canada
Distribution: Debian
Posts: 448

Rep: Reputation: 35
you need a Device, Monitor, and Screen section in your xorg.conf for each monitor. Then you need to put all 3 Screens in your ServerLayout section.

Section "ServerLayout"   
        Identifier      "threescreens"
        Screen          "screen1" 0 0
        Screen          "screen2" RightOf "screen1"
        Screen          "screen3" RightOf "screen2" 0 0
        InputDevice     "keyboard" "CoreKeyboard"
        InputDevice     "mouse" "CorePointer"
The Device sections need BusID lines to specify the video card they refer to. You may need to use the Nvidia blob's options "ConnectedMonitor" or "UseDisplayDevice" for the card with 2 monitors, but you'll have to read up on that yourself (Nvidia's README docs cover allsorts). The README also has more info on multi-monitor setups.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Please check my xorg.conf for ATI big-desktop dual monitors DieselSA Linux - Hardware 14 05-13-2008 07:22 AM
Noob needing xorg.conf help dual monitors sixgauge Linux - Hardware 3 05-22-2007 01:15 PM
xorg.conf Needed for ATI 7500 - Dual Monitors NoStop Linux - Hardware 0 08-08-2006 10:22 PM
xorg.conf - Dual Monitors rizhun Linux - Hardware 0 04-14-2006 11:47 AM
Auto Selecting/Switching monitors via xorg.conf suguru Linux - Hardware 0 11-07-2005 02:19 AM

All times are GMT -5. The time now is 06:47 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration