try doing this: echo 1 > /sys/module/processor/parameters/max_cstate
Does it solve your problem? I have the same problem with my laptop (Dell M70). Even writing in the gnome-terminal has some strange lag before changing max_cstate. I guess this high CPU usage has something to do with SMP in the kernel. -- Default desktop is too cpu hungry when idle. https://launchpad.net/bugs/44912 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
