The scroll button (blue one) on my IBM T23 is not working under Ubuntu 7.04. I added the following to the xorg.conf to enable it.
sudo nano /etc/X11/xorg.conf
I added the options to the script at ‘Section “InputDevice”‘, ‘Driver “mouse”‘ :
Option “EmulateWheel” “true”
Option “EmulatewheelButton” “2″
Option “XAxisMapping” “6 7″
Option “YAxisMapping” “4 5″
Then, execute Firefox and type the following on the address field :
about:config
Locate “mousewheel.horizscroll.withnokey.action”, change “2″ to “0″;
Locate “mousewheel.horizscroll.withnokey.numlines”, change “-1″ to “1″
Now, reboot the computer. My scroll button on my IBM T23 is functioning.
