[Bug 96659] [BDW] dp to VGA dongle works intermittently

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96659

--- Comment #6 from Elizabeth <elizabethx.de.la.torre.mena at intel.com> ---
(In reply to Carl Michal from comment #5)
> I haven't tried this in a long time - I've been able to use hdmi generally -
> and its always been reliable.
> 
> This computer now has a 4.11.3 kernel on it. I went down to the lecture
> theatre just now with the apple VGA dongle and the situation is pretty
> different from when I first posted this. In all of the rooms where I could
> reproduce the problem, the projector switching system has been recently
> upgraded, so the newer kernel isn't the only difference.

Hello Carl,
Since all the configuration had changed already, it seems really hard to point
a culprit now.  
> 
> At the moment though, the apple dongle seems to work fine, as long as the
> dongle is plugged into the projector switch before its plugged into the
> laptop. If you plug the dongle in to the computer first, then plug the VGA
> cable in to the dongle afterwards, it doesn't work.
> 
About the dongle, seems more probably that the cable or the dongle are the
cause of the problem than any SW configuration. I recommend to try a different
cable and dongle to see if the problem is caused for those ones. If the problem
is not present anymore, please change the status to RESOLVED.
Thank you.

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