[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 #51 from nkalkhof at web.de ---
Same problem here with a T440p and a Ultra Dock. Increasing the sleep time to
500us works however the system hogs the CPU about 30 seconds with a black
screen before switching to the external screen when docked.

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