[Bug 111047] On IceLake machine GPU can't enter DC6

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111047

Imre Deak <imre.deak at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #4 from Imre Deak <imre.deak at intel.com> ---
(In reply to Lakshmi from comment #3)
> (In reply to qwang13 from comment #2)
> > From Imre Deak
> > 
> > Not any problem found in the log, DC6 gets enabled by the driver.
> > 
> > Question:
> > a.	does the Loki MLK eDP panel has PSR support?
> > b.	Check if you get DC5/6 transitions on Loki MLK if you disable the display?
> > disable display; and then "cat /sys/kernel/debug/dri/0/i915_dmc_info"
> 
> Imre, any comments?

I can't see any issues in the log, the driver enables DC5/6. I think the eDP
panel doesn't support PSR, which would block these states. Let's wait for the
reporter to confirm that.

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