Bug#394971: This bugs affects the official powerpc port as well.
retitle 394971 [powerpc64] load the fan control modules.
thanks
Just one point. The [powerpc64] tag is for the 64bit powerpc kernels, not the
pure 64bit port by Andreas Jochens, which is called [ppc64].
On Thu, Nov 23, 2006 at 09:55:46AM +0900, Charles Plessy wrote:
>
> Dear D-I team,
>
> This bug not only affects the unofficial powerpc64 port, but also and
> more importantly the official powerpc port, on iMac G5 hardware.
>
> I reported the problem for the first time in the following installation
> report:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340980
>
> I confirmed that it is not fixed in RC1:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=399334
>
> It was figured out in the following report that the module
> windfarm_cpufreq_clamp had to be loaded before the windfarm_pm81 in
> order to start fan control:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=397942
>
> I would like to stress out that once the fans start at full speed, it is
> not posible to stop them, as it is a low-level hardware preservation
> system triggered when the CPU reachs a defined temperature. Therefore,
> depending on the room temperature, the user will not have the opportunity
> to load the module by hand before the fans start.
>
> If it is not possible to integrate fan support to the installer, I would
> like to suggest the following addition to the installer errata:
>
> * Fan control is not supported during the installation on iMacs G5. You
> can safely run the installer with the fans at full speed. Please add
> windfarm_cpufreq_clamp and the relevant windfarm module to
> /etc/modules before rebooting, in order to have fan control on your
> newly installed Debian.
This should be fixed in initramfs-tools, we provided the initramfs-tools
maintainer with all the needed information, but maybe we should consider
creating a new package with an initramfs-tools hook to do that ?
Friendly,
Sven Luther
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