Mailinglist Archive: opensuse (2831 mails)

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[SLE] Info: 2.6.16.++ kernels and sensors
  • From: Mark Crean <mcrean@xxxxxxxxxxxxxx>
  • Date: Tue, 25 Jul 2006 22:46:55 +0200
  • Message-id: <200607252246.56008.mcrean@xxxxxxxxxxxxxx>
In case this helps anyone.

A recent kernel patch turns off sensors (lm-sensors, libsensors, etc.) if
certain Asus motherboards are detected. In fact, my understanding is that the
patch simply keeps the smbus hidden so sensors has nothing to access. The
reason is that some Asus motherboards don't do the sensors and smbus thing
properly and this can led to severe consequences and general borkage on
resuming from sleep or suspend states.

The workaround is to recompile the kernel with ACPI sleep off (default is on)
or edit /drivers/pci/quirks.c in the kernel sources at your own risk where
the relevant code for this Asus stuff is to be found. The affected
motherboards are listed in the code here and seem to be only some older ones.

So if you have an affected Asus board and update to, say, kernel
2.6.16.21-0.13-default and then find that sensors no longer works, this is
probably why.

:)

Fish


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