Usually 100% X cpu issues are actually due to application problems. See https://wiki.ubuntu.com/X/Troubleshooting/HighCPU
** Package changed: xorg-server (Ubuntu) => nvidia-graphics-drivers-180 (Ubuntu) -- 9.10a2 Xorg uses ~100% of CPU core after prolonged screen saver https://bugs.launchpad.net/bugs/392498 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
