When a head is detached from an enabled output, that output needs to go through a modeset (drmModeSetCrtc() / ATOMIC_ALLOW_MODESET) so that the connector is actually removed from the CRTC. This has not yet been a problem, because an output could only have one head at a time, and would be automatically disabled on detach. It would be a problem with clone mode. Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk> Acked-by: Derek Foreman <derekf@osg.samsung.com> Reviewed-by: Daniel Stone <daniels@collabora.com>dev
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