[ltp] trackpoint, touchpad, and buttons suddenly dead

[Christoph Schmees]

Am 26.08.2017 um 13:38 schrieb David Griffith:
>
> While I was using my T420, the touchpad suddenly stopped responding, as
> did the mouse buttons and trackpoint.  The output of xinput shows no PS/2
> keyboard/mouse interface available.  The output of lsmod shows that the
> psmouse module is unused.  I checked the BIOS to see if somehow these got
> turned off.  I turned them off, rebooted, then rebooted again, and turned
> them back on again.  I removed the hard drive and inserted a Windows 7
> hard drive I keep around for when I need to use Windows on this laptop.
> Still nothing.  All this while, the keyboard has continued to function as
> expected.
>
> What could have caused the ps/2 mouse interface to fail like this?
>

Southbridge failed due to overheating? Is USB still functioning? How 
is air flow: little and very hot? Just my shot into the blue ...