Could please anybody help me identify what is the source of problem? The problem is that after some time or after opening a window of some application in X, it seems like I suddenly lost 2d acceleration.
Because the process
/usr/bin/Xand all its operations ( window resizing, scrolling) suddenly eats 60% to 150% of CPUs runtime when scrolling window for instance.
I'm using twinview, but it happens even without it, but not so much. I'm not using any composition in KDE or xfce.
The nvidia driver installation logs looks there was no problem during the installation.
I tried various different kernel versions, 2 different Xorg version, 2 versions of nvidia driver and even different window managers.
It only happens in particular time frames, if I open some specific www page or application in browser or it comes from nowhere.
As far as
xorg.conf, I have the default one from nvidia-settings. I also tried various possible configurations and modules.
I have glxgears 2.241 FPS and after the problem is gone I have 6267.623 FPS.
Slackware-current - kernel 18.104.22.168 , 22.214.171.124 , 2.6.36.x 2.6.37 X.Org X Server 1.9.4 KDE 4.5.5 or xfce-4.6.2 NVIDIA-Linux-x86_64-260.19.36 + twinview Geforce 8400 GS
google-chrome-8 XChat 2.8.8 eclipse-3.6