[Bug 80355] DP MST problems with xrandr while re-docking

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80355

--- Comment #17 from Chris Wilson <chris at chris-wilson.co.uk> ---
Hmm, it didn't actually disable the CRTC as I expected. Let's try that again:

commit 706480bde6120f84388a99085ed3d1cc3b759697
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Mon Jun 23 22:50:23 2014 +0100

    sna: Disable CRTC after MST topology change

    In order to disable CRTC after marking outputs as removed after probing
    MST topology updates, we must manually mark the CRTCs as no longer
    enabled.

    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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