On Tue, 23 Oct 2007 08:02:39 -0400, Mark M. Hoffman wrote:
> > At least the 2x Quad-Core Apple Mac Pro appears to have some over-heat
> > protection which suddenly powers off the whole box under load. This adds
> > support for the fans and temerature sensors in the Mac Pro - later some
> > "windwarm" a-like code should probably monitor the values. For now
> > manually tweaking the fans prevents the sudden shutdown for me.
> >
> > cd /sys/devices/platform/applesmc.768
> > for x in fan{1,2,3,4}; do
> > echo 1 > ${x}_manual
> > echo 1285 > ${x}_output
> > done
>
> Ren?: there is a series of patches for the f75375s hwmon driver that allow fans
> to be initialized with platform data. Although I haven't reviewed the series
> in detail yet, IMO the concept looks OK and it may be appropriate for the Macs
> also.
>
> http://lists.lm-sensors.org/pipermail/lm-sensors/2007-October/021597.html
> http://lists.lm-sensors.org/pipermail/lm-sensors/2007-October/021598.html
> http://lists.lm-sensors.org/pipermail/lm-sensors/2007-October/021599.html
I still need to be convinced why this has to be hard-coded in the
kernel when the same can be done, and fine-tuned, in user-space just
fine.
--
Jean Delvare
