[Intel-gfx] [PATCH 6/8] drm/i915/dp: clear DP encoder CRTC if the receiver disappears

Keith Packard keithp at keithp.com
Sat Jul 2 01:48:27 CEST 2011


On Fri,  1 Jul 2011 15:22:56 -0700, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:

> If the receiver goes away, drop any associated CRTC.  This will force a
> full mode set on any subsequent setcrtc call, which is what we need if
> the receiver is gone and the link is down.

This doesn't look like a good solution to me -- we're smashing the
connection between the DP output and the selected CRTC. If you plug the
cable back in, won't this mess things up when we try to retrain again?

-- 
keith.packard at intel.com
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