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Old 03-15-2009, 07:10 PM
Óscar Fuentes
 
Default Slow response to mouse clicks.

Kubuntu 8.10 KDE 4.2.1

Linux qcore 2.6.27-11-generic #1 SMP Thu Jan 29 19:28:32 UTC 2009 x86_64
GNU/Linux

From time to time KDE responds very slowly to mouse clicks. For
instance, after clicking on a taskbar entry the application takes about
30 seconds to come to the foreground. It is as if the taskbar didn't
notice the click until half a minute later. Other KDE applications have
the same issue. Dolphin, for example, takes a long time to respond to
clicks on its buttons. Non-KDE apps reacts normally to mouse clicks
(within the application, but they are affected by the same lag coming to
the foreground when its taskbar entry is clicked).

It only affects to mouse clicks, the keyboard is as responsive as
always. Another strange thing is that the clock widget on the taskbar is
stuck too: it updates the hour after about half a minute.

There is nothing sucking CPU or RAM resources, the CPU usage is almost
0% all the time. Once it starts, the issue comes and goes: it works fine
for some clicks but slows down for several minutes thereafter. The only
cure is to logout and restart X. Then it can take days or minutes to
happen again.

It happened a few times with previous versions of KDE too (4.2.0 and
4.1.x, IIRC).

--
Oscar


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