Breezed is a small daemon to control the speed of the fan,
   depending on the current temperature of the computer.

   DISCLAIMER: I have tested it only on my Thinkpads X61s, T420s, and
   T450s with Debian stable.

 * INSTALLATION

   Before installing, you must have a configuration file in
   /etc/breezed.conf.

   Three are provided in the archive, and they use the settings *I*
   picked for my Lenovo Thinkpads. I have no idea if these settings
   are safe on these laptops -- I guess so, since I have been using
   them for years on both -- and I suspect they are not safe for
   another laptop.

   If you want to give it a try, just copy of the configuration file,
   e.g.

     cp breezed_Lenovo_X61s.conf /etc/breezed.conf

   Then install the daemon simply with

     make install

   and uninstall it with

     make uninstall

   Use respectively install-sysv and uninstall-sysv to install it
   through /etc/init.d.

   See the man page for details about the algorithm, arguments and
   configuration file.

 * NOTES

   On Thinkpads you have to allow the module thinkpad_acpi to set the
   fan speed, which is not allowed by default in Debian. To do so, add
   a file /etc/modprobe.d/thinkpad_acpi.conf containing

   ---------------------------- snip snip -------------------------------
   options thinkpad_acpi fan_control=1
   ---------------------------- snip snip -------------------------------

--
Francois Fleuret (francois@fleuret.org)
Nov 2015