[Bug 71701] Regression, Dual-Head, i915 mode-setting driver, "pipe B stuck"

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=71701

--- Comment #24 from Kris Karas <bugs-a13 at moonlit-rail.com> ---
Sorry for the delay in testing.  Pulling a whole GIT repository proved quaintly
problematic here, and had to be deferred.

The new drm-intel-nightly works!  I'm seeing 100 good out of 100 boots.  New
AUX code is dealing with dongle delays just fine.

However, this appears to be new code suitable for mainline kernels 3.15 or even
3.16.  We need a simple patch to address the regression in the old code from
3.13.6 onwards.  And from what I gather, this new code is not likely to be
backported into those stable trees.  Hence, the patch which I proposed above,
in comment #19 is, I think, the simplest fix for those old trees, and really
should be included by Greg KH; failing that, the ideologically correct fix
would be to revoke the regression (87c3c227f580e2965feceae5f8973e9a38644963)
until such time as a non-regressing patch were applied.

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