[Bug 68718] [snb] vsync hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=68718

--- Comment #10 from Chris Wilson <chris at chris-wilson.co.uk> ---
Cool, that's important as for Ivybridge it is documented that the GPU must be
kept awake across the vsync, so it does not look like that is required here.

Which leaves the open question whether any Sandybridges sold did not have the
vsync feature (it was only added very late in the development cycle), or if
there is a w/a that I missed.

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