[ltp] IBM R51: The always on fan problem

Pasquale Imbemba linux-thinkpad@linux-thinkpad.org
Wed, 26 Apr 2006 10:21:19 +0200


Laurent Gilson wrote:

> The first (and unsolvable) one is the CeleronM. It creates far more 
> heat  while idleing and triggers the fan a lot. Use a PentiumM.

I have a Pentium M built in m R51.

>
> Severeal others are related to the radeon-gfx.

I have no ATI, but the Intel Extreme Graphics 2 video adapter.

> Apart from the frequency all CPUs can enter sleep-stats (called C1,  
> C2,...C8, C1 = almost no power saving, C8 = a lot of power saving) to 
> save  power. If you enable/load the Xserver extentsion GLX the CPU can 
> no longer  enter stats below C1. So far i don't know why. With all 
> after drivers  loaded it reaches C3. With a bit hacking you can get C4 
> (IMHO not worth  it).

Ok, I will try to disable GLX and see what happens?

>
> Next problem is the WLAN-card. In default configuration it get's hot 
> quite  fast. If you enable "Power Management" (see iwconfig) it 
> consumes a lot  less energy.

Don't have one :)

Bye
Pasquale