[Bug 106250] Regression with Dell TB16 dock and Linux kernel 4.16.x

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106250

--- Comment #17 from Stanislav Lisovskiy <stanislav.lisovskiy at intel.com> ---
The only thing I can so far recommend at least as one simple workaround is once
this happens you can execute xrandr --output <output name> --crtc <some crtc
number>. Output name can be figured out by executing xrandr without arguments,
as for crtc id, I just tried different ones until secondary screen starts
working properly. Eventually you can manually restore secondary screen to
proper state by using this command(it just basically sends
ProcRRSetScreenConfig request, which we are lacking from desktop manager).

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