When my system gets under moderate real time load - i.e. watching a
video - the touchpad becomes unusable. As an example, when I go to
http://www.spotify.com which features a very large movie that is
playing "in the background", I can not use the mouse any more *at all*.
And with "at all" I mean at all: I just am not able to move it anywhere
any more.

The touchpad has been behaving very badly with previous kernels
allready, i.e.:

  $ ls /boot/vmlinuz-3.*
  /boot/vmlinuz-3.2.0-4-amd64
  /boot/vmlinuz-3.7.0
  /boot/vmlinuz-3.7.0-rc6
  /boot/vmlinuz-3.8-2-amd64

... but with kernel 3.8-2 usability has become "hell": Using the
touchpad is now *really* painful.

Note the extract from the kernel.log below. The touchpad and keyboard are
loosing their sync all the time. Wrt keyboard this means, that keyboard
behavior is quite erratic - one can never be sure what is received by
the system when typing quickly - sometimes keys are repeated many times,
sometimes they do not get through at all.

All pointers on how to diagnose or debug this problem better or even
improve the situation are very wellcome.

There's a quite unacted upon upstream bugreport about these (?) problems
here: https://bugzilla.kernel.org/show_bug.cgi?id=37852

*t

This bug was filed for a very old kernel. If you can reproduce it with
- the current version in unstable/testing
- the latest kernel from buster.backports
please reopen the bug, see https://www.debian.org/Bugs/server-control

Danke für die Triage Moritz!
*t