[Bug 85123] [BDW/SKL] FBC is not actually working after start gnome-sesstion desktop

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85123

--- Comment #5 from liulei <lei.a.liu at intel.com> ---
(In reply to Chris Wilson from comment #4)
> Also note that the preferred update paths for gnome-shell is by pageflipping
> (as happens here) so you do not expect FBC to take effect until the system
> is idle.

Is there a way to avoid pageflipping without stopping gnome-shell? So that
system stays idle with gnome.

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