Simple Display Switcher Script
Here is a very simple script that with switch your Thinkpad from the built-in display to an external display. It automatically selects the preferred resolution and requires no options.
This script relies on the program "disper", which provides a simple command to change between multiple displays. So, the first step is to install disper (http://willem.engen.nl/projects/disper/).
If you are running Ubuntu or Debian, you should be able to simply download and install the deb from here: http://ppa.launchpad.net/wvengen/ubuntu/pool/main/d/disper/
If you are running some other distribution, you may need to download and build/install from the tarball: http://ppa.launchpad.net/wvengen/ppa/ubuntu/pool/main/d/disper/
Install this Script
You can simply cut-and-paste this:
cat <<EOF > /tmp/disper.simple_display_switcher #!/bin/sh # # 2009.10.13 Brian Elliott Finley # License: GPL v2 # # This program uses disper to switch between the built-in and an # external display on a notebook. See # http://willem.engen.nl/projects/disper/ for details on disper. NOTEBOOK_DISPLAY="DFP-0" disper --export 2>&1 | grep "metamode: $NOTEBOOK_DISPLAY" if [ $? = 0 ]; then # enable the secondary display disper --secondary else # enable the primary (notebook) display disper --single fi EOF sudo install -m 755 -o root -g root /tmp/disper.simple_display_switcher /usr/local/bin/