I didn't think of observing the relation between the problem and the battery. I unplugged my battery and the problem is stopped. After plugging it back, and updating I am no longer experiencing the problem. The current kernel I am running is 3.8.0-19-generic.
@Francesco: Could you run the test again? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1174169 Title: Minimum and maximum cpu frequency are equal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1174169/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs