The following may or may not be related. I had/have excessive CPU @90% and a hot CPU (65C) when running an office desktop X-server and use nxserver to run a home desktop X-session. When I log out of the office session before going home, this problem does not arise and the temperature stays down (about 46C) I have googled a lot and not found an answer (yet) to why X cranks up on CPU.
Anthony OS is Ubuntu Feisty Fawn 7.04 hardware is: ASRock Incorporation K7VT6 motherboard Intel(R) Celeron(R) CPU 2.13GHz 512M DDRAM Maxtor 2F030L0, ATA DISK drive -- [r300] Very high CPU usage when refreshing a window https://bugs.launchpad.net/bugs/73473 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
