Ubuntu
acpi-support package

  1. Bug #804109
  2. Comment #37

Comment 37 for bug 804109

Revision history for this message
Vince Indriolo (y-vince) wrote : Re: can't enable touchpad in Ubuntu 11.10

I have a thinkpad T520, and my touchpad stopped working after upgrade.
I tracked /etc/acpi/events/lenovo-touchpad to a problem with the getXuser function in /usr/share/acpi-support/power-funcs.

I changed this line:
        user=$(who | awk "/:$displaynum)/ { print \$1; exit }")
to this (escaping the parenthesis):
        user=$(who | awk "/:$displaynum\)/ { print \$1; exit }")

and I was able to enable my touchpad.