On Wed, Feb 11, 2015 at 01:53:26AM +0100, Rafael J. Wysocki wrote: > On Wednesday, February 11, 2015 12:26:02 AM Matthew Garrett wrote: > > Hm. It's not clear to me what the bug is describing. If we're not waking > > up more frequently, why aren't we entering PC6? > > Good question. :-) > > The bug is saying, pretty much, that after a positive _OSI response to "Darwin" > we cannot enter PC6 any more on that machine all other things being equal. We're using intel_idle, so we should be making idle state determination regardless of what ACPI tells us. So is Darwin mode influencing the state of some MSR that controls whether PC6 can be entered? Is the GPU blocking it because of some configuration difference? I don't know enough about how the chip decides to enter PC6 to be able to tell. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
