@jm-leddy: I tested the patch by patching and rebuilding [1] the actual
Raring kernel (3.8.0.-25.37). To my mind, no improvement compared to the
non-patchted kernel, which means if the touchpad lost sync and stops
working it takes a long time to reconnect. Of course I also get the
output [2].

Imho, best experience is using Kernel 3.10rc7 mainline, which I am
testing currently. There, I can still reproduce (heavy typing during
using the touchpad) the lost syncs with non-working touchpad but the
time to reconnect is quite low. Maybe it's due to Ubuntu's patch [3]
which got finally mainlined in 3.10 [4], maybe it's something different.
I will use and test 3.10 in the next few days, maybe the time window to
reconnect is small enough that the user does not recognize it. But as I
said the output and non-working can still be triggered with my touchpad
[5].


[1] https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel

[2] psmouse serio4: issuing reconnect request
 psmouse serio4: TouchPad at isa0060/serio4/input0 lost sync at byte 1
 psmouse serio4: TouchPad at isa0060/serio4/input0 lost sync at byte 1
psmouse serio4: TouchPad at isa0060/serio4/input0 lost sync at byte 1
 psmouse serio4: TouchPad at isa0060/serio4/input0 lost sync at byte 4
psmouse serio4: TouchPad at isa0060/serio4/input0 lost sync at byte 1
 psmouse serio4: issuing reconnect request

[3] http://thread.gmane.org/gmane.linux.kernel.input/25599

[4] https://bugzilla.kernel.org/process_bug.cgi

[5] psmouse serio4: synaptics: Touchpad model: 1, fw: 7.2, id: 0x1c0b1,
caps: 0xd047b3/0xb40000/0xa0000, board id: 71, fw id: 578367

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https://bugs.launchpad.net/bugs/717970

Title:
  After sleep, key presses get lost and trackpad is jittery

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