Your bluetooth controller and trackpad are waking up the CPU regularly, which is what results in the noise. Disable bluetooth to improve this.
** Changed in: linux-source-2.6.22 (Ubuntu) Status: Confirmed => Won't Fix -- MacBook makes whining noise when uhci-hcd loaded https://bugs.launchpad.net/bugs/124642 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