Re: Fwd: [Bug 92111] Power regression from 3.17 to 3.18 and 3.19

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On Wednesday, February 11, 2015 01:43:06 AM Matthew Garrett wrote:
> On Wed, Feb 11, 2015 at 02:57:48AM +0100, Rafael J. Wysocki wrote:
> 
> > Well, it looks like we circled back to http://marc.info/?l=linux-acpi&m=142361557824868&w=4 :-)
> 
> Right. And, like I said, if there's a "We're seeing increased power 
> consumption" bug then there's an incentive for people from Intel to 
> actually help identify the root source, whereas if there's a "We can't 
> enable Thunderbolt hotplug on this platform Intel pretend has nothing to 
> do with them because otherwise we'll see increased power consumption", 
> it's going to be so far down people's list of priorities that it's 
> probably not going to happen.

And you said that already too, so I guess we can circle like that forever.

Only one more comment:

In order to "identify the root cause" it is pretty much necessary to know
what _OSI("Darwin") causes the firmware to actually do and the only party
knowing that is Apple.  The only question I can ask hardware people is what
it *theoretically* may be doing to trigger the observed behavior and
honestly I doubt I'll get a useful answer to that.

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