*** This bug is a duplicate of bug 359363 ***
    https://bugs.launchpad.net/bugs/359363

The original bug report is closed as "won't fix", so I am posting a
comment here too

I have the same issue on a Dell Latitude E6500 running Ubuntu 11.04
64bit

The laptop has a touchpad and a stick (I believe it is called so).

The problem is that sometimes (not always) when the notebook wakes up from 
standby, the touchpad is recognized as a generic PS/2 mouse. It still works, 
but there is no touchpad tabs in corresponding settings dialogs, and 
acceleration and scrolling do not work, which makes it almost impossible to 
work comfortable.
I use a workaround which fixes it for me, but it would be nice to have this 
problem fixed once and for all.

The workaround is to remove and install psmouse driver:

sudo rmmod psmouse
sudo insmod /lib/modules/`uname -r`/kernel/drivers/input/mouse/psmouse.ko

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https://bugs.launchpad.net/bugs/667707

Title:
  touchpad identified as PS2 generic mouse

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