[ltp] X60s: Heat, power management, battery

[Laurent Gilson]

Hello,

> - The hard disk gets incredibly hot under Linux, but remains totally  
> cool under Windows

hdparm -B 128 /dev/your-disc.

And install/configure laptopmode. That letīs the HD spindown for a much  
longer time.

> - I rarely hear the fan kick in when in Linux

That contradicts:

> - Battery life is only about 4 hours under Linux, but upto 7 hours in  
> Windows.

Looks like a speedstep problem.

Are ACPI & Co loaded ?
Does /sys/devices/system/cpu/cpu0/cpufreq/ exist ?
Does the frequency in /proc/cpuinfo change depending on the load ?

cu