[Bug 112102] External screen died with 'pipe state doesn't match'

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=112102

--- Comment #1 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
(In reply to Daniels Umanovskis from comment #0)
> I have a Dell Latitude 5500 connected through a docking station to two
> external screens. Occasionally, when they're in power saving mode and I wake
> the laptop, one of the screens fails to come back up. There's a 'pipe state
> doesn't match' error in dmesg at the corresponding time.
> 
> Oct 22 15:56:40 midgard kernel: [516468.781351] ------------[ cut here
> ]------------
> Oct 22 15:56:40 midgard kernel: [516468.781352] pipe state doesn't match!

The interesting details of what actually doesn't match should be in the log
just before this.

Oh and please attach logs. The formatting goes down the toilet when copy
pasting directly into a bugzilla comment.

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