Hello everyone, Ever since I've started using KDE4 on 3 different systems, I'm having performance problems. Here is what happens :
After working in a session for a while the Xorg process starts to take more and more CPU. I will generally notice it when some actions such as scrolling in dolphin or typing in kmail are totally unresponsive. The subjective effect is like running remote X applications through a slow 56.6Kbps modem connection. I have found a 100% reproducible way to trigger the problem : All I have to do is to use digiKam's aspect crop tool on about 30 photographs. When the problem occurs, the X server process will take around 10~15% CPU when there are absolutely no events going on. Doing thing such as switching windows or scrolling in a existing window (Firefox, dolphin, ooffice, etc..) will cause the Xorg process to jump to 100% CPU usage. Closing windows will help a little, but the only way to get Xorg to behave properly once again is to completely restart the session. I have tried to disable composting both in KDE and directly in /etc/X11/Xorg.conf to no avail. The problem occurs on 3 different systems that do not have the same versions of software components. Here are the common factors : Linux x86_64 Nvidia graphic cards (9400M, NVS 160M, 8300) KDE >=4.4.2 Xorg >= 1.7.6 Two machines are laptops with Intel Core 2 CPUs and the other one is a desktop with an AMD CPU. I also checked ~/.xsession-errors and /var/log/Xorg.0.log, but I didn't find anything that looked helpful to understand the issue I'm facing. Any help and suggestions on how to diagnose what's going on will be greatly appreciated! Cheers and happy holidays, Samuel _______________________________________________ [email protected]: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.freedesktop.org/mailman/listinfo/xorg Your subscription address: [email protected]
