[Bug 90430] [HD4600 MST] DisplayPort MST crash with Dell M3800 laptop + Dell UP2414Q monitor

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90430

cshei at cs.indiana.edu changed:

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

--- Comment #4 from cshei at cs.indiana.edu ---
Progress!!  4.6.0-rc5 kind of worked, so I also tried drm-intel-nightly. 
Results with drm-intel-nightly:

* Completely hangs during boot if monitor is plugged in (see attached
screenshot).  The hang occurs before any system logging begins, so I don't see
anything useful in the system log.
* If the monitor is plugged in while X is running, it doesn't get the correct
resolution right away.  After playing with GNOME's display settings a bit, I
was able to get monitor working at 4K @ 60 Hz!  It doesn't seem to be super
stable though -- sometimes the video gets corrupted instead of looking right
(see other attached screenshot).

Is there anything else I can do or try to help debug this?  Thanks!

-- 
You are receiving this mail because:
You are the assignee for the bug.
You are the QA Contact for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20160503/9ceadb10/attachment.html>