Version: 4.0.80 (using KDE Devel) Installed from: Compiled sources Compiler: GCC 4.2.3 OS: Linux When I switch on Desktop effekts, such as shadows I can see only black screen with the mouse. I use X.org 7.3 with intel drivers (GMA965)
this sounds a lot more like a kwin-composite issue. I'm assuming you can't see any windows after this happens - really just blackness and the mouse? it's possible that you haven't configured xorg correctly. there's a howto somewhere...
whoops, forgot to reassign
So I have 3.5.8 works with composite module very well, I have got shadows and other... But when I install 4.0 I "can't see any windows after this happens - really just blackness and the mouse"... What`s wrong I do??
kde3's kwin didn't have any real compositing. this file might help you: http://websvn.kde.org/*checkout*/trunk/KDE/kdebase/workspace/kwin/COMPOSITE_HOWTO
The control module asks you to confirm turning effects on and disables them again after a timeout otherwise. Please attach the kwin output you get from the time effects are being activated.
Waiting for a response.