I have looked around the forums and can not find a solution to this problem. There have been bugs posted about it, but there has to be a temporary workaround.
The output of dmesg is line after line of
and it is happening so often (several times a second) that it slows the whole system down, and sometimes even stalls the system for several minutes. It usually quits after a few minutes, but then starts up again later.
[ 123.658547] ACPI: Transitioning device [FAN1] to D3
[ 123.658550] ACPI: Unable to turn cooling device [dd8fb2b8] 'off'
This problem occurred the first time with feisty (I think), but went away with gutsy. Now it is back with hardy. When it happened with feisty I compiled my own kernel without the acpi fan module, and the problem went away. I tried that now, but the problem persists.
The computer is an celeron (pentium 4 variety) with an intel video card.
Does anyone know of a temporary work around, at least until the devs fix this? Perhaps using the /proc/acpi stuff?