zcfan(1)

NAME
zcfan - zero-configuration fan control daemon for ThinkPads

DESCRIPTION
zcfan is a minimal, zero-configuration fan control daemon for ThinkPads.

OPTIONS
zcfan does not take any options. If any are provided, a help message will be printed and zcfan will exit.

CONFIGURATION

  USAGE
zcfan has the following default fan states:
    Config name | thinkpad_acpi fan level | Default trip temperature (C)
    max_temp | 7 | 90
    med_temp | 4 | 80
    low_temp | 1 | 70
You can optionally override this configuration at /etc/zcfan.conf with your desired threshold values in the following format:
        max_temp 85
        med_temp 70
        low_temp 55
If no trip temperature is reached, the fan will be turned off.

  HYSTERESIS
We will only reduce the fan level again once:

1.  The temperature is now at least 10C below the trip point, and

2.  At least 3 seconds have elapsed since the initial trip.

This avoids unnecessary fluctuations in fan speed.

DEPENDENCIES
thinkpad-acpi must be loaded with fan_control=1.

SEE ALSO
thinkfan(1)

AUTHOR
Chris Down chris@chrisdown.name

REPORTING BUGS
Please send bug reports to https://github.com/cdown/zcfan/issues.