[Nouveau] [Bug 41588] suspend/resume with active CRTC, but disconnected output causes problems

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=41588

--- Comment #1 from maximlevitsky at gmail.com 2011-10-08 08:22:15 PDT ---
Changed bug title to reflect further findings.

So to reproduce the problem (with the patch), all you need is:

1. connect external monitor
2. activate it using xrandr
3. disconnect it (and rely on lack of software that deactivates the CRTC).

4. suspend/resume.

Now the bug is already there. If you suspended with compiz running, you can try
to rotate the cube and it will freeze, sometimes the screen will be filled with
black/white pattern.
Of course if you connect the DVI output it won't show anything.

If you suspend/resume again, you will get for sure that black/white pattern.

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