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Old 09-22-2010, 06:45 PM
Rainer Dorsch
Default nvidia-graphics-drivers and KDE slowdown in Squeeze


I see here on a Lenovo Thinkpad T61p very poor performance with the nvidia-
graphics-drivers drivers in squeeze when running KDE (desktop effects enabled
or disabled does not make a difference):

The observation is that the desktop becomes slower (typing is a second per
character, changing focus for windows becomes very slow,...) over time after
approximately a day it is impossible to work with it.

What improves the situation is to disable and enable the desktop effects in
KDE. Seems during the enabling the part of the graphics system causing the
problem gets reset.

Ken observes the same on Kubuntu 10.04

Some observations:
* The problem does not occur with gnome.
* The problem does not occur with KDE and another graphics hardware or drivers
(e.g. ATI/AMD or Intel).
* The problem does not occur with lenny and KDE 3.5.10

So far we have little data to narrow down the area where the problem comes

Have you any idea what could be a helpful test?

Would you expect any problem when I pull the newly upload nvidia-graphics-
drivers 256.53-1 into squeeze to test if the problem is still there?


Rainer Dorsch
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