Quick workaround: Just as a quick help for people getting hit by this
bug (like me) after update to kernel 3.13.0-44 on ubuntu 14.04 or as I
did, tried upgrade to ubuntu 14.10 and kernel 3.16.0-29 and still
hitting the same bug.
Enable module hid_rmi (echo "hid_rmi" >> /etc/modules) and reboot
Now trackpoint slave pointer TPPS/2 IBM TrackPoint shows again for my thinkpad
edge e320 again in xinput list (where before there was no slave pointer TPPS/2
IBM TrackPoint listed in xinput list):
$ xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=11 [slave pointer (2)]
⎜ ↳ TPPS/2 IBM TrackPoint id=12 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Power Button id=8 [slave keyboard (3)]
↳ Integrated Camera id=9 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=10 [slave keyboard (3)]
↳ ThinkPad Extra Buttons id=13 [slave keyboard (3)]
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https://bugs.launchpad.net/bugs/1386774
Title:
Synaptics touchpad and IBM trackpoint incompletely detected
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