[Bug 88124] i915: regression: after DP connected monitor is turned off, when turned on, it does not work anymore

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88124

--- Comment #16 from Jiri Pirko <jiri at resnulli.us> ---
(In reply to Jani Nikula from comment #14)
> (In reply to Jiri Pirko from comment #13)
> > There's a debug dmesg output already attached to this BZ. Isn't that enough?
> 
> Please run a recent (v4.10-rcN or drm-tip) kernel and attach dmesg all the
> way from boot to reproducing the issue, with drm.debug=14 module parameter
> set.
> 

Attachment created. I ran 4.10-rc6


> > This is trivial to reproduce. Am I the only one experiencing this issue?
> > This is clearly a regression between 3.16 and 3.17. Having this issue on
> > multiple laptops, multiple displays, multiple kernels.
> 
> Bisect early on would have been great, perhaps it would still help, but I
> doubt we can revert anything such old stuff.

Next weekend maybe, if I'll find the time. But you can the the bisection
yourself...

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