Public bug reported:
Binary package hint: compiz
When using Compiz it is possible for keys to get "stuck" down. A simple
way for me to reproduce is to scroll wildly in firefox with the mouse
wheel (or trackpad scroll edge) for a couple of seconds while holding
down the "page down" button. After doing this the X server believes the
"page down" key is permanently pressed, making other tasks obviously
difficult. Repeating this procedure (holding down "page down" and
scrolling madly) will generally unstick the key after a couple of tries,
but once this has occurred the keyboard behaviour is still slightly
strange: some modifier key combinations (alt-tab, super-tab for compiz,
super-space for Gnome-Do) no longer work, and the key-repeat settings no
longer apply - pressing a key produces exactly one character/event, no
matter how long you hold it down for. However, Ctrl-left, Ctrl-
backspace and the like still work.
This behaviour is not limited to the "page down" key, nor does it
require madly mouse-scrolling - that just makes it dependably
reproducible. It also happens to me with WoW under wine, where I often
have the ',' key held down and use the mouse at the same time. It seems
to require keyboard+mouse activity.
I'm filing this under Compiz because I can only reproduce this behaviour
while Compiz is running. Try as I might, I can't reproduce under
Metacity.
Some or all of bug #190934 may be the same as this. However, simply
restarting X fixes this for me - I don't need to delete any settings, or
kill gconf.
ProblemType: Bug
Architecture: amd64
Date: Fri Feb 22 13:09:11 2008
DistroRelease: Ubuntu 8.04
NonfreeKernelModules: nvidia
Package: compiz 1:0.7.0-0ubuntu3
PackageArchitecture: all
SourcePackage: compiz
Uname: Linux CowboyLaputopu 2.6.24-8-generic #1 SMP Thu Feb 14 20:13:27 UTC
2008 x86_64 GNU/Linux
** Affects: xorg-server (Ubuntu)
Importance: High
Status: Confirmed
** Tags: apport-bug likely-dup
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Keys get "stuck" down
https://bugs.launchpad.net/bugs/194214
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