Comment 27 for bug 399821

For your information.
Dell2400D Intel-845G
Have installed Xubuntu kk-9.10 live-cd build 20090815
Smooth install, auto-login works, hardware driver load is slow therefore boot-time exceeds 4 minutes. This build comes with kernel 2.6.31-5 installed and runs fine except for xorg which draws high cpu power while running applications. The OS was updated with kernel 2.6.31-6. When running this kernel xorg draws 42% cpu power with no application running "clean desktop except for terminal running top". Cpu use hits 100% when one program is started and it eventually becomes unresponsive. I am using Xubuntu with this post, thanks.