[Bug 92171] [i915gm] vblank not available on crtc

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=92171

--- Comment #14 from Alan Bartlett <ajb at elrepo.org> ---
(In reply to Jani Nikula from comment #13)
> Okay, please retry current drm-intel-nightly branch from
> http://cgit.freedesktop.org/drm-intel. If it's indeed fixed by the same
> commit, the backport request to 3.19.y is still pending.

Having built a kernel from the above sources, I can confirm that no matter how
I tried to provoke an oops / obtain a call trace, the i915 code behaved
correctly.

Just one point (as a result of using the above sources). On booting the kernel,
exactly as modeset operates on the screen output there is a transient squawk,
followed by a click, from the sound sub-system. It is repeatable and not a
one-off event.

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