Comment 4 for bug 140468

I've got the same problem but on Hardy alpha 2 with 2.6.24-3 kernel. As I noticed my CPU Fan doesn't work anymore on Haardy but works on other systems.

from log:
Jan 9 00:04:26 blacktosh kernel: [ 1006.220108] ACPI: Unable to turn cooling device [dd14fb40] 'off'

What's the most important: My laptop (Toshiba Satellite A105) overheats and hangs OS. Only hard power off helps in this state.