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The bit doesn't stick, and the output is always cloned from pipe A, even when it's supposed to scan out from pipe B. Shuts up annoying warnings from the modeset-rework, too. I've noticed that with this patch we know get and unknown connection state since the code can't find a suitable pipe for load detection. But that beats the previous state of affairs, where it tried to use pipe B, actually used pipe A and concluded that something is connected (although it's the LVDS on pipe A and nothing on the VGA connector on pipe B). I've tried to make load detect work by remapping the pipe->planes stuff, so that crtc 0 will use pipe B and hence we still have something left for load-detect on pipe A. But alas, that upset the hw a bit. So there's still some things to figure out, but this here will at least paper over some of the problems. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51265 Acked-by: Chris Wilson <chris@chris-wilson.co.uk> [danvet: extend the commit message a bit with recent observations.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>