[Bug 96645] [regression 4.7] [BISECT]Low package c-states used only after forcing DPMS to off
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Wed Jan 18 18:54:02 UTC 2017
https://bugs.freedesktop.org/show_bug.cgi?id=96645
Matt Roper <matthew.d.roper at intel.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |ASSIGNED
--- Comment #9 from Matt Roper <matthew.d.roper at intel.com> ---
(In reply to Gabriele Mazzotta from comment #8)
> 4.10-rc3 is still affected. This is the newest version I tried.
Thanks for confirming. I'll need to refresh my memory on this area of the
code, but my suspicion is that we're probably doing something wrong when we
inherit/sanitize the watermark values setup by the BIOS. Your DPMS off/on
workaround forces us to truly recalculate proper watermarks from scartch, and
presumably enter the deeper sleep states.
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