Li todos os posts relacionados que posso encontrar, mas nenhum deles oferece uma solução.
O touch pad é detectado, mas não funciona. Ele funciona no Windows 8 (a máquina é de inicialização dupla)
$ egrep -i touchpad syslog
May 18 20:44:35 node7 kernel: [ 10.787917] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2b1, caps: 0xd00123/0x840300/0x126c00
May 18 20:44:35 node7 kernel: [ 10.893065] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input10
May 19 09:24:36 node7 kernel: [ 11.728268] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2b1, caps: 0xd00123/0x840300/0x126c00
May 19 09:24:36 node7 kernel: [ 11.861941] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input12
May 19 09:36:21 node7 kernel: [ 11.646728] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2b1, caps: 0xd00123/0x840300/0x126c00
May 19 09:36:21 node7 kernel: [ 11.776112] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input11
Em particular, isso não funciona, apenas faz o compiz travar e reiniciar:
$ sudo modprobe -r psmouse
$ sudo modprobe psmouse proto=imps
May 19 09:48:12 node7 rsyslogd: [origin software="rsyslogd" swVersion="5.8.6"
x-pid="1101" x-info="http://www.rsyslog.com"] rsyslogd was HUPed
May 19 09:48:42 node7 rsyslogd: last message repeated 2 times
May 19 09:49:41 node7 gnome-session[2106]: WARNING: Application 'compiz.desktop' killed by signal
May 19 09:49:41 node7 gnome-session[2106]: WARNING: App 'compiz.desktop' respawning too quickly
May 19 09:49:41 node7 gnome-session[2106]: CRITICAL: We failed, but the fail whale is dead. Sorry....
May 19 09:49:50 node7 anacron[1249]: Job 'cron.daily' terminated
May 19 09:49:50 node7 anacron[1249]: Normal exit (1 job run)
May 19 09:50:09 node7 kernel: [ 844.392522] input: PS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input16
May 19 09:50:51 node7 kernel: [ 886.068210] type=1400 audit(1368953451.556:35):
apparmor="DENIED" operation="capable" parent=1 profile="/usr/sbin/cupsd" pid=1194 comm="cupsd" pid=1194 comm="cupsd" capability=36 capname="block_suspend"