[Bug 84083] [BDW Bisected]DP unable to light up after unplug/plug while X running

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84083

Guo Jinxian <jinxianx.guo at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |ASSIGNED

--- Comment #9 from Guo Jinxian <jinxianx.guo at intel.com> ---
(In reply to comment #8)
> (In reply to comment #2)
> > Created attachment 106985 [details]
> > xrandr --verbose before plugging
> > 
> > (In reply to comment #1)
> > > What does xrandr --verbose report before unplugging, after and then after
> > > plugging it back in?
> > 
> > Please check the attachment.
> 
> Here, did you actually meant that this xrandr was with the DP monitor still
> attached, i.e. before *unplugging*?
> 
> If so, since the detection at this point declares that DP1 is unconnected,
> the bug is that we don't detect the display until after we plug it back in.

xrandr --verbose before plugging：DP monitor didn't attach.
xrandr --verbose plugging: DP monitor attached
xrandr --verbose after unpluging: DP monitor didn't attach

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