[Bug 99334] [SKL] External screen not recognized on boot, disconnects during operation

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99334

Elizabeth <elizabethx.de.la.torre.mena at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #9 from Elizabeth <elizabethx.de.la.torre.mena at intel.com> ---
(In reply to post+fdo from comment #8)
> > If I use HDMI through the Thunderbolt port, there seems to be no problem.
> 
> I may have been a little over-optimistic here; while one adapter (from
> Apple) works fine, I am having huge trouble with a USB-C docking station
> from Dell.  About one in ten times, when I connect it, the entire machine
> just freezes and I have to hard-reboot. Frequently, not even SysRq keys will
> react.
> 
> Also, it occasionally (like twice a week) happens that an HDMI screen is not
> recognized even if I re-plug it 10 times.  In this case I have to reboot to
> get it to connect.
> 
> Essentially, I now find myself rebooting the laptop 3 or 4 times as week
> because of issues with the external screen. It's like the 90s all over
> again...

Hello,
Sorry for the delay. There are some features for docking stations that where
included on kernel 4.12. Could you please try to replicate the bug with this
version and share the results? Thank you.

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