[Bug 85472] xrandr --off on all display outputs causes X to shutdown

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85472

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
It's a normal shutdown. You need to ask why your desktop environment is
shutting down. I was expecting a crash or similar inside X to explain the
abnormal behaviour, but that doesn't appear to be the case.

(In reply to Sree Harsha Totakura from comment #0)
> In the Xorg, I see the following error message when I undock the notebook
> and before the server terminates:
> (EE) intel(0): sna_mode_check: invalid state found on pipe 1, disabling
> CRTC:11

It's not fatal, just an oddity with the hotplug behaviour of MST. It is more
likely an indication of a kernel bug that the fb/mode on the CRTC is lost - the
expectation is that it remains set even on unconnected pipes and it is
userspaces responsibility to turn off unwanted pipes. (This is to handle the
case where we want to keep driving the pipe after disconnection to speed up
reconnection.)

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