Code/fan-enable-extended - Revision history

ThinkGNU: Script in

 block

2025-04-11T07:23:59Z

Script in <pre> block

Whoopie: Undo corruption

2007-04-11T14:24:15Z

Undo corruption

BjdWfy at 01:57, 11 April 2007

2007-04-11T01:57:31Z

Thinker: Moved from ACPI fan control script

2006-07-26T21:17:33Z

Moved from ACPI fan control script

New page

#!/bin/sh

# fan control-script
#
# based upon ibm-acpi 0.11 (experimental=1 !)
#
# eliminates anoying "fan always on" in battery mode
# works with hysteresis (DELTA) so that always-turn-on/turn-off is avoided
# fan acivates at MAXTEMP and cools down CPU, GPU etc. to MAXTEMP-DELTA than the fan is turned off
# furthermore detects if AC is on and gives back fan control to default behaviour than
#
# one can change MAXTEMP and DELTA to individual values
# but take care of your THINKPAD don`t melt it!
#
# have fun!
# mk 05.05.05

MAXTEMP=51
DELTA=4

SWITCHTEMP=$MAXTEMP

#make sure the script doesn't leave the fan off on error
trap "echo enable > /proc/acpi/ibm/fan" EXIT

while [ 1 ];
do
for ac in `sed s/state:// < /proc/acpi/ac_adapter/AC/state`
do
if [ "$ac" = "off-line" ]; then
fan=no
for temp in `sed s/temperatures:// < /proc/acpi/ibm/thermal`
do
test $temp -gt $SWITCHTEMP && fan=yes
done

if [ "$fan" = "yes" ]; then
command='enable'
SWITCHTEMP=`expr $MAXTEMP - $DELTA`
else
SWITCHTEMP=$MAXTEMP
command='disable'
fi
else # ac-adapter on -> set fan control to standard behaviour
command='enable'
fi

echo $command > /proc/acpi/ibm/fan
sleep 15
done
done

@@ Line 1: / Line 1: @@
 #!/bin/sh
@@ Line 50: / Line 51: @@
       done
    done

@@ Line 32: / Line 32: @@
           for temp in `sed s/temperatures:// < /proc/acpi/ibm/thermal`
             do
-              test $temp -gt $SWITCHTEMP
+              test $temp -gt $SWITCHTEMP && fan=yes