[Bug 107546] Screen is frozen on second connection of DP MST dock

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107546

--- Comment #28 from Benjamin Berg <benjamin at sipsolutions.net> ---
Created attachment 142103
  --> https://bugs.freedesktop.org/attachment.cgi?id=142103&action=edit
Hang when turning 3rd monitor on

OK, I tried drm-tip (9ef57c71386778d8425b4884252f1919184645a1).

Configuration:
 * X1 Carbon 4th Gen
 * Onelink+ Dock (yeah, same as the reporter it seems, maybe this dock is
"special" in some way …)
 * Three monitors:
   - Internal screen, 1920x1080
   - DELL U2515H (right now DP 1.2/MST enabled), attached to dock, 2560x1440
   - DELL P2417H, attached to dock, 1920x1080

When I boot with everything connected:
 * Internal screen works
 * Graphics errors on P2417H
 * U2515H remains off (but laptop thinks it is used)

The attached log file is when booting with the P2417H disabled. I logged in and
then switched the P2417H off, which resulted in my laptop to freeze after a
short time. I did not manage to recover, but I did try to switch the U2515H
off/on a few times and then unplugged the dock.

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20181019/31ab3c9d/attachment.html>