** Package changed: gnome-control-center (Ubuntu) => xorg (Ubuntu)

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https://bugs.launchpad.net/bugs/931488

Title:
  Touchpad and trackpoint glitches on Lenovo Thinkpad L520

Status in “xorg” package in Ubuntu:
  New

Bug description:
  When I first installed Oneiric, both touchpad and trackpoint worked fine 
(almost): both pointing devices were listed in "Pointing devices" application, 
settings like scrolling emulation for trackpoint and two-finger scrolling for 
touchpad worked too.
  The only problem was "lost synchronization" message in log which were 
accompanied by temporary (1-3 secs) freeze of pointer from time to time 
(approximately one time per 10 minutes). Both pointing devices successfully 
survived suspend-to-ram.

  Recent update has changed all.
  Here is excerpt from package list change of etckeeper:

  date:        Fri Jan 20 00:33:16 2012 +0700
  Package changes:
  -libgudev-1.0-0 1:173-0ubuntu4
  +libgudev-1.0-0 1:173-0ubuntu4.1
  -libudev0 173-0ubuntu4
  +libudev0 173-0ubuntu4.1
  -udev 173-0ubuntu4
  +udev 173-0ubuntu4.1
  -x11-common 1:7.6+7ubuntu7
  +x11-common 1:7.6+7ubuntu7.1
  -xorg 1:7.6+7ubuntu7
  +xorg 1:7.6+7ubuntu7.1
  -xserver-xorg 1:7.6+7ubuntu7
  +xserver-xorg 1:7.6+7ubuntu7.1
  -xserver-xorg-input-all 1:7.6+7ubuntu7
  +xserver-xorg-input-all 1:7.6+7ubuntu7.1
  -xserver-xorg-video-all 1:7.6+7ubuntu7
  +xserver-xorg-video-all 1:7.6+7ubuntu7.1

  # Now both trackpoint and touchpad doesn't work right after boot in half of 
cases.
  # Even if they work after boot, they often stop working after approximately 
an hour of uptime.
  # Even if they work after an hour of uptime, they loose scrolling function 
and start detecting as mouse, not touchpad/trackpoint.
  # Additionally instead of random freezes trackpoint now goes crazy and starts 
jumping on screen and clicking everywhere for two seconds.
  # Both trackpoint and touchpad don't survive suspend-to-ram.
  # Sometimes when trackpoint works after boot it behaves very strange: pushing 
stick to the left causes pointer to move to the left but then immediately move 
back half of runned way. 

  Pointing devices are almost completely unusable now!

  What I've tried:
  # Load older kernel - doesn't work.
  # sudo modprobe -r psmouse && sudo modprobe psmouse - doesn't work
  # Turn off "disable touchpad on typing" - doesn't work

  Excerpt from /var/log/kern.log:
  Feb  7 12:01:39 kriomant-laptop kernel: [   25.392134] Synaptics Touchpad, 
model: 1, fw: 7.2, id: 0x1c0b1, caps: 0xd047b3/0xb40000/0xa0000
  Feb  7 12:01:39 kriomant-laptop kernel: [   25.392141] serio: Synaptics 
pass-through port at isa0060/serio1/input0
  Feb  7 12:01:39 kriomant-laptop kernel: [   25.438392] input: SynPS/2 
Synaptics TouchPad as /devices/platform/i8042/serio1/input/input6
  Feb  7 12:01:39 kriomant-laptop kernel: [   25.476716] rts_pstor: device scan 
complete
  Feb  7 12:01:39 kriomant-laptop kernel: [   28.242126] trackpoint.c: failed 
to get extended button data
  Feb  7 12:01:39 kriomant-laptop kernel: [   30.294340] IBM TrackPoint 
firmware: 0x0e, buttons: 0/0
  Feb  7 12:01:39 kriomant-laptop kernel: [   30.468148] input: TPPS/2 IBM 
TrackPoint as /devices/platform/i8042/serio1/serio2/input/input14
  Feb  7 21:44:55 kriomant-laptop kernel: [34980.112787] psmouse.c: TouchPad at 
isa0060/serio1/input0 lost sync at byte 4
  Feb  7 21:44:55 kriomant-laptop kernel: [34980.115095] psmouse.c: TouchPad at 
isa0060/serio1/input0 lost sync at byte 1
  Feb  7 21:44:55 kriomant-laptop kernel: [34980.125416] psmouse.c: TouchPad at 
isa0060/serio1/input0 - driver resynched.
  Feb  7 21:45:43 kriomant-laptop kernel: [35028.137276] psmouse.c: TouchPad at 
isa0060/serio1/input0 lost sync at byte 1
  Feb  7 21:45:43 kriomant-laptop kernel: [35028.138511] psmouse.c: TouchPad at 
isa0060/serio1/input0 lost sync at byte 1
  Feb  7 21:45:43 kriomant-laptop kernel: [35028.139499] psmouse.c: TouchPad at 
isa0060/serio1/input0 lost sync at byte 1
  Feb  7 21:45:43 kriomant-laptop kernel: [35028.140464] psmouse.c: TouchPad at 
isa0060/serio1/input0 lost sync at byte 1
  Feb  7 21:45:43 kriomant-laptop kernel: [35028.141833] psmouse.c: TouchPad at 
isa0060/serio1/input0 lost sync at byte 1
  Feb  7 21:45:43 kriomant-laptop kernel: [35028.141839] psmouse.c: issuing 
reconnect request
  Feb  7 21:45:44 kriomant-laptop kernel: [35028.598891] Unable to query 
Synaptics hardware.
  Feb  7 21:45:44 kriomant-laptop kernel: [35028.607343] psmouse.c: Failed to 
deactivate mouse on isa0060/serio1
  Feb  7 21:45:44 kriomant-laptop kernel: [35028.749811] psmouse.c: Failed to 
enable mouse on isa0060/serio1
  Feb  7 21:45:45 kriomant-laptop kernel: [35029.740481] psmouse.c: bad data 
from KBC - timeout
  Feb  7 21:45:45 kriomant-laptop kernel: [35029.834608] input: PS/2 Generic 
Mouse as /devices/platform/i8042/serio1/input/input15

  I'm ready to provide any additional information.

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