[PATCH 0/1] [Lucid] LP#526354: suspend/resume breaks sensors and fan V3

Andy Whitcroft apw at canonical.com
Wed Apr 21 13:33:53 UTC 2010

On Wed, Apr 21, 2010 at 10:21:38AM +0100, Andy Whitcroft wrote:
> We have been tracking an issue where suspend/resume breaks temperature
> sensors (which read 0 permenantly) and fans no longer turn on correctly.
> Upstream has tracked that to needing multi-byte access to the EC.
> Following this email is a patch which has been tested here to fix the
> issue.  The original patch here caused boot panics on most ThinkPad models
> and at least some MacBooks.  This is a second replacement version of this patch
> which still fixes the Dell systems, and does not kill ThinkPads nor MacBooks.
> Tested good here on both the original Dell and on a ThinkPad T30.
> Awaiting other testing feedback from affected users.

Now also confirmed to work on the MacBook Pros which were affected by
the V2 version.


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