Today I noticed that on my Thinkpad the noise is only there if I disable bluetooth, either with the hardware swith or # echo disable > /proc/acpi/ibm/bluetooth. However this seems not to help on other notebooks.
-- High pitch noise from CPU when on battery https://launchpad.net/bugs/93067 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
