On Fri, 17 Dec 2010 12:43:35 -0600 (CST), Jeff Rickman wrote: > > The SCH5127 has an automatic fan speed control mode which you should be > > able to setup by writing the proper values to sysfs. Should be > > equivalent to "fancontrol" but more reactive and less CPU-intensive. > > I studied the sysfs entries carefully while using fancontrol > and not using fancontrol. I decided to do the following: > > echo 1 > /sys/devices/platform/dme1737.2160/pwm1_enable > echo 255 > /sys/devices/platform/dme1737.2160/pwm1 > > Works fine. This puts the fan to full speed (100% duty cycle.) This is equivalent to, but presumably less efficient than: $ echo 0 > /sys/devices/platform/dme1737.2160/pwm1_enable If the noise is bearable then you're done indeed. But what I actually had in mind was setting to automatic mode: $ echo 2 > /sys/devices/platform/dme1737.2160/pwm1_enable And then fine-tuning the pwm1_auto_channels_zone, zone*_auto_channels_temp and zone*_auto_point*_temp values. This would let you tune the fan speeds from medium at idle to full speed under load (best noise/temperature trade-off.) If you try that, you'll have to read the documentation in Documentation/hwmon/dme1737. -- Jean Delvare _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
