[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

Benjamin Berg <benjamin at sipsolutions.net> changed:

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                 CC|                            |benjamin at sipsolutions.net

--- Comment #27 from Benjamin Berg <benjamin at sipsolutions.net> ---
I am seeing a similar issue on an X1 4th Gen and using a dock with two attached
monitors (DP). It seemed to be somewhat worse if one of the monitors has MST
enabled (DP 1.2 switch). This was also on GNOME (Fedora 29, Kernel
4.18.13-300.fc29, mutter 3.30.1-2.fc29).

What works for me as a workaround is avoiding the "hotplug" by suspending the
machine and then resuming it again after plugging in the monitors. Unplugging
generally worked fine for me.

I'll do a local build of drm-tip and see what happens there.

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