[LinuxBIOS] s2881 fan control

Ward Vandewege ward at gnu.org
Fri May 5 23:19:23 CEST 2006

On Fri, May 05, 2006 at 04:57:17PM -0400, Ward Vandewege wrote:
> On Thu, Apr 20, 2006 at 04:59:52PM -0700, Lu, Yinghai wrote:
> > I have inited the hw sensors in LinuxBIOS for s2881. So you could use
> > lmsensor to check the FAN speed. The config file is on Tyan web.
> > 
> > For the Fan control, there should more some reg setting...to reduce the
> > FAN speed winbond and adm1027...

> I can shut the machine down, do a cold boot into LinuxBIOS, and it still
> works.
> Until I unplug the power to the machine, that is.
> After that, I can still read out everything (see attached
> set_fan_speed_bad.txt) correctly, but now also _set_ the fan speed.

I'm sorry this is confusing. After unplugging and replugging the power to the
machine, I need to boot the proprietary BIOS once to be able to set the fan
speed on any consecutive (cold) boot. 


Ward Vandewege <ward at fsf.org>
Free Software Foundation - Senior System Administrator

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