The following three files have to be modified to integrate fan control into the lm_sensors system service script. Behaviour of the service script is unchanged until the user explicitly configures fan control, so no change to default behaviour. Tested on SUSE 10.0 and all works fine. Please include these patches. Thanks, Volker -- Volker Kuhlmann is possibly list0570 with the domain in header http://volker.dnsalias.net/ Please do not CC list postings to me. -------------- next part -------------- This patch for SUSE 10.0 changes the lm_sensors service script to also start and stop the fan control, if fan control is configured. If fan control is not configured, this patch has no effect. To configure fan control, read the documentation of package sensors, and run pwmconfig (as root). Volker Kuhlmann, 8 Jan 2006 --- /etc/init.d/lm_sensors.orig 2005-09-13 12:34:49.000000000 +1200 +++ /etc/init.d/lm_sensors 2006-01-08 13:16:57.000000000 +1300 @@ -46,6 +46,8 @@ CONFIG=/etc/sysconfig/lm_sensors PSENSORS=/usr/bin/sensors +FANCONFIG=/etc/fancontrol +PFAN=/usr/sbin/fancontrol # Source function library. . /etc/rc.status @@ -59,14 +61,33 @@ /sbin/modprobe $module &>/dev/null rc_status done - rc_status -v && touch /var/lock/subsys/sensors + rc_status && touch /var/lock/subsys/sensors /usr/bin/sensors -s &> /dev/null + + # Start fan control, if configured + if [ -s "$FANCONFIG" -a -x "$PFAN" ]; then + echo -n "starting fan control: " + "$PFAN" >/dev/null & + echo $! >> /var/lock/subsys/sensors-fan + fi + + rc_status -v } stop() { echo -n $"Shutting down sensors: " test -r "$CONFIG" && . "$CONFIG" + # Stop fan control, if it was started + if [ -s /var/lock/subsys/sensors-fan ]; then + echo -n "stopping fan control: " + pid="`cat /var/lock/subsys/sensors-fan`" + kill -TERM "$pid" + rm /var/lock/subsys/sensors-fan + sleep 1 # wait for fancontrol to terminate (any better way?) + true + fi + for i in ${!MODULE_*} ; do eval module=\$$i /sbin/modprobe -r $module &>/dev/null --- /usr/sbin/fancontrol.orig 2005-09-13 12:34:49.000000000 +1200 +++ /usr/sbin/fancontrol 2006-01-08 12:50:28.000000000 +1300 @@ -277,7 +277,10 @@ while true do UpdateFanSpeeds - sleep $INTERVAL + # The sleep in the foreground isn't interruptible by kill, which is + # unsuitable for system service scripts. -VK 8Jan06 + sleep $INTERVAL & + wait $! done # some old stuff/missing features, will clean this up soon -------------- next part -------------- This patch changes pwmconfig to perform much smaller steps when testing fans which have by far most of their speed change with PWM values below 16. This is true for the fan shipped with an AMD Athlon64 3200+ CPU. To make the fan control for this fan work, it is also necessary to adjust the MINSTART value in /etc/fancontrol considerably down, probably to somewhere around 5 (4 works at least while the fan is new), and to adjust the MAXTEMP value upwards to way above what one consider reasonable (try 90). The latter is necessary as long as the fancontrol scripts interpolates along a straight line to find a PWM value as a function of CPU temperature. Volker Kuhlmann, 8 Jan 2006 --- /usr/sbin/pwmconfig.orig 2005-09-13 12:34:49.000000000 +1200 +++ /usr/sbin/pwmconfig 2005-12-20 23:47:34.000000000 +1300 @@ -188,7 +188,9 @@ PLOTTER=gnuplot STEP=15 -PDELAY=2 +STEP2=2 +STEP2_BELOW=31 +PDELAY=3 function pwmdetail() { @@ -256,6 +258,7 @@ fi break fi + test $pwm -lt $STEP2_BELOW && let STEP=$STEP2 let pwm=$pwm-$STEP done pwmdisable $P
