[Bug 52311] Flash 11.5 video hangs ivy bridge

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=52311





--- Comment #6 from Chris Wilson <chris at chris-wilson.co.uk>  2013-01-04 19:56:23 ---
That will be something like an error was detected whilst changing state so it
disabled the external output as well. You should be able to recover by running
xrandr --output HDMI1 --off ; xrandr --ouput HDMI1 --preferred

Once you regain control of just the HDMI, can you please try testing with

xrandr --output HDMI1 --off ; xrandr --output HDMI1 --crtc 0

and

xrandr --output HDMI1 --off ; xrandr --output HDMI1 --crtc 1

(if you feel really brave, --crtc 2 as well).

You can also repeat the test using s/HDMI1/LVDS1/

If it consistently fails with either on crtc 1, then I'm requesting the wrong
events to be unmasked and delivered, or setting up the wrong scanline register,
etc.

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