http://bugzilla.kernel.org/show_bug.cgi?id=12748





------- Comment #2 from [email protected]  2009-02-23 03:37 -------
It is a bit more basic.  The resources are not being attached to all devices
properly, and because of that, someone decided to break things further to avoid
shutting down devices for no good reason...

At first glance, it appears that devices already in D0 (because of the BIOS for
example) will never get a chance to have their power resources attached and
properly set up.

We are not to trust anything.  We should do the "attach power resources and
bring them ON" and "detach power resources and, if not referenced anymore, turn
them off" dance to ALL devices with an ACPI node, regardless of the state they
were handled to us.


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