Added a second monitor to my laptop with Ubuntu

Posted by peter on Tuesday, February 15, 2011

I decided to move my 21″ monitor from my desktop computer to my laptop that runs Ubuntu. Since I have a DVI interface on my monitor and a HDMI interface on my laptop I had to buy a adapter. I bought one at Clas Olson and it worked perfectly.

Ok, now I had to switch my primary monitor so my external monitor holds the panels instead of the built in monitor that is the default monitor. After a quick google I found this perfect blog post that describes the problem and has a nice solution. Kudos to you Andrew.

First we have to create a shell script.
`
#!/bin/bash

Author: Andrew Martin

Credit: http://ubuntuforums.org/showthread.php?t=1309247

echo “Enter the primary display from the following:” # prompt for the display
xrandr –prop | grep “[^dis]connected” | cut –delimiter=” “ -f1 # query connected monitors
read choice # read the users’s choice of monitor
xrandr –output $choice –primary # set the primary monitor
Save it with the name monitor-switcher.sh. Make the script executable with ‘chmod +x monitor-switcher.sh. Now it’s time to run the script.
~$ ./monitor-switcher.sh
Enter the primary display from the following:
LVDS
DFP1
DFP1
`
As you can see I choose the DFP1 as my primary monitor.

Done. 🙂


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