Public bug reported:
Binary package hint: kdebase-workspace
There is confusion between a number of related bugs (which didn't show
up for me in "Do any of the following bugs..."). #478464 seems most
similar to this but that's dubiously marked as a duplicate of #41301.
DESCRIPTION
It occurs within a few minutes after starting KDE or restarting kwin with "kwin
--replace". The mouse cursor continues to move where it should, but clicking
either does nothing or affects an unexpected (inactive) window, and gestures
such as pushing into the desktop corners also do nothing. It's as if kwin
thinks the mouse cursor is frozen somewhere other than where it appears.
Everything other than mouse events continues to work as expected:
controlling KDE with keyboard shortcuts shows that applications,
compositing and desktop effects are all fine.
WORKAROUND
Restart kwin with "kwin --replace".
None of the workarounds mentioned in the discussion for bug #41301 work
for this, which is why I think it's different.
BACKGROUND
I'm not running Xinerama or dual screens, I have a USB mouse which works
perfectly on my other machine, my Kubuntu 9.10 retains most of its default
settings, windows are set to "Click to Focus", and my graphics card is nVidia
GeForce 6100 with the nvidia-glx-185 driver.
I run regular apt updates, and first noticed this bug on 8 Jan 2010,
having run KDE with very few problems for several months. I think the
automatic updates on 8 Jan were for Firefox and GIMP (upgrades), but
this bug occurs whether or not Firefox or GIMP are running. I have not
made any configuration changes recently.
ProblemType: Bug
Architecture: amd64
Date: Sun Jan 10 13:44:24 2010
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/kwin
NonfreeKernelModules: nvidia
Package: kde-window-manager 4:4.3.2-0ubuntu7.1
ProcEnviron:
LANG=en_GB.UTF-8
SHELL=/bin/bash
LANGUAGE=
ProcVersionSignature: Ubuntu 2.6.31-17.54-generic
SourcePackage: kdebase-workspace
Uname: Linux 2.6.31-17-generic x86_64
** Affects: kdebase-workspace (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug
--
Mouse events fail frequently and unpredictably, requiring kwin restart
https://bugs.launchpad.net/bugs/505494
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