[ltp] t42 archlinux fan noise

[Damien Challet]

> cat /proc/acpi/ibm/thermal ?

a ~$ cat /proc/acpi/ibm/thermal 
temperatures:   52 46 30 63 31 -128 29 -128

52 degrees is quite high, so there is a (few) process(es) preventing the cpu 
from idling. powertop is you friend there. This temperature should be around 
40C while idling.

Note as well the 63 in the line above, this is the GPU temperature. Make sure 
that you have activated powersaving options for it.