[Bug 94126] [SKL/KBL] Vblank counter issues when DMC takes goes to DC5/DC6 impacting frontbuffer tracking and PSR with X modesetting(0) driver.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94126

--- Comment #9 from Elizabeth <elizabethx.de.la.torre.mena at intel.com> ---
(In reply to Jim Bride from comment #7)
> I want to do a run with vblank debug messages turned on to ensure that my
> understanding of what's going on here is correct, but from looking at the
> code I think we should be able to handle this case (where we lose the HW
> vblank count due to a power management event) similarly to what would happen
> if the counter wrapped around.  We'll likely want to modify
> drm_update_vblank_count() to ensure that DRM's software counter gets adjusted
> properly when we lose our HW counter.
Good afternoon,
Is there any update on this case? 
Thank you.

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