[Bug 71267] sna: (Haswell) X-server freezes when enabling DP at docking station

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71267

--- Comment #9 from Daniel Martin <consume.noise at gmail.com> ---
Just rushed through some tests:
- I've tested all the other connectors (HDMI, DVI and VGA) at the docking
station with the same technique (boot with notebook in docking station,
external monitor not plugged in, start X, connect monitor, enable output via
xrandr):
  o The xrandr output was always DP2.
  o All had the same problem, the hung timer showed up for
ironlake_panel_vdd_work.

- Additionally, I've tried to boot with the monitor already connected. Here the
maschine gets stuck in a very early state (No output on the monitor nor LVDS -
well eDP) where the network is not up. So I can't grab any logs here.

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