[Bug 79386] [IVB regression] Intermittent flickering on KMS, constant flickering on X11

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79386

--- Comment #10 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to comment #8)
> I do not think its is purely a WM (I am assuming this means window manager)
> issue.

WM == watermarks on the display fifo. If we set those incorrectly, the display
is liable to flicker or show other corruption and possibly hang the machine.

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