# Sometimes, the bios takes control of our fan again, so we # Clean up once the program exits by killing the acpi listener. If echo ' $insmod_output ' | grep ': File exists$ ' >/dev/null thenĮcho 'The error message 'File exists' usually means the module is already loaded, ignoring.

If ! insmod_output= $(insmod '/lib/modules/ $(uname -r )/kernel/drivers/hwmon/dell-smm-hwmon.ko.xz ' force=1 2>&1 ) then # dell laptops (like the 9575) aren't listed as supported, but still work. # The same applies to going from running quickly to running slowly.

# $cold-$slowdown_lag before the fans turn off again. # exceedes $old, but the temperature has to go down to # $slowdown_lag: The fans go from off to running slowly as soon as the temperature # $temp_sensor: The sensor which will be used. # $delay: The number of seconds between each temperature check. # The fans will be running quickly if the temperatures are above $hot. # The fans will be running slowly if the temperatures are between $cold and $hot. # The fans will be off if the temperatures are below $cold degrees C. # speeds to something sane right after you open the laptop lid. # regardless of temperature this script will detect that and set the fan # the fans would sometimes get stuck at a high RPM after resuming from sleep # anythig if the fans are running at the wrong speed. # * Despite reading the fan speed so often, i8kmon doesn't seem to actually do # This script just reads the fan speed very occasionally, to verify it's still correct. # * i8kmon reads the actual fan speed every couple of seconds, which pauses the # It does a couple of things better than i8kutils' i8kmon: # It depends on lm_sensors and i8kfan (from ). # This script automatically monitors temperature sensors,

Dell laptop fan control