how to know fan's working well?


I’m not familiar very much with hardware and driver in linux.
Therefore I don’t know how the fan(s) in my laptop works.
My laptop is Lenovo Thinpad X61s.
I used this command to check the cpu’s temperature:
cat /proc/acpi/thermal_zone//temperature*
Here is the result:

temperature: 49 C
temperature: 54 C

Is it normal?

One more issue is that, sometimes I leave my laptop on my bed and watch movie. It gets really hot on its back side. As I remember, this never happened in Vista.
Please tell me some more tips & tricks to get the fans or some kind of cooling system working better with opensuse 11.1


If you open MyComputer (sysinfo) in kde4 it displays the CPU temp. Not sure about Gnome.

My temp hovers about 40C. Running it on a bed is NOT a good idea period. Vista / Linux it shouldn’t make much difference. Crumbs I have OS 11.1 running and XP in V.Box and the Fan still doesn’t do much work.

Well, mine normally runs at about 60 C, so that seems fine.

If you put a laptop on a bed you will likely block its vents, and stop the fan being able to move as much air as normal, so it will heat up (with openSUSE or Vista running). Try putting a big book under it or something to keep the sheets away from the vent!

My wife’s point of view on this, is that my Laptop is my ‘other woman’. If I took it to bed. A riot would ensue.:wink:


Another issue is my wireless adapter’s heat and fingerprint reader.
They’re located on the right hand side of laptop’s palm rest.
I think they’re a little bit hot since they make my right hand sweat if I put it on for a long time.
I also found some hints to make it cooler, but they don’t seem to work. For instance, those are the scripts that I added in /etc/init.d/boot.local so that they are executed on startup

For fingerprint reader:

*echo “auto” > devices/pci0000:00/0000:00:1a.0/usb1/1-2/power/level
For wireless:

for i in echo /sys/bus/pci/drivers/iwlagn/*/power_level; do
echo 5 > $i done

But when I reboot my laptop and check their values again, they don’t seem to be changed. (no “auto” for fingerprint, and no “5” for wireless

Any idea?