[Bug 67092] [SNB regression vsync] WAIT_FOR_EVENT hangs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67092

--- Comment #32 from Matthew Thode <mthode at mthode.org> ---
I have noticed that when switching monitors with xrandr, if I shut them all off
before turning them up again I don't hit this bug.

#doesn't hit
xrandr --output LVDS1 --off
xrandr --output HDMI1 --auto
xrandr --output LVDS1 --off --output VGA1 --auto --output HDMI1 --auto
--right-of VGA1

instead of this

#does hit
xrandr --output HDMI1 --auto
xrandr --output LVDS1 --off
xrandr --output LVDS1 --off --output VGA1 --auto --output HDMI1 --auto
--right-of VGA1

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