[Bug 111502] Dell XPS15 (HD530 & GeForce 950) external screen via dock/HDMI no text display & gdm freeze

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111502

--- Comment #6 from HaJo Schatz <hajo at hajo.net> ---
Lakshmi,

external screen _never_ works with drm-tip. 

After booting drm-tip kernel with dock attached, even the previously working
5.0 kernel easily freezes. Remedy is to poer off dock for some 30 mins. 

The 5.0 kernel however is always stable when dock is not connected. Hence I
assume there's some mis-configuration going on in the dock for drm-tip.

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