In my computer X still uses 100% of one core. i found additionally that i can trigger the behaviour when i increase screen backlight with keyboard keys. i uploaded xorg.log too.
** Attachment added: "Xorg.0.log" http://launchpadlibrarian.net/21117038/Xorg.0.log -- jaunty xorg 100% cpu usage https://bugs.launchpad.net/bugs/309776 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs