[Intel-gfx] [PATCH] drm/i915: Fix the HDMI hot plug disconnection failure (v3)

Chris Wilson chris at chris-wilson.co.uk
Wed Nov 28 21:39:04 UTC 2018

Quoting Guang Bai (2018-11-28 21:18:13)
> On some GEN9 platforms, slowly unplugging (wiggling) the HDMI cable makes
> the kernel to believe the HDMI display is still connected. This is because
> the HDMI DDC lines are disconnected a little bit later after the hot-plug
> interrupt triggered thus an immediate edid fetch can be made. Use digital
> port live states to authorize the edid read.

You should at least comment upon why we don't historically do this and
why you now believe that it is safe.

More information about the Intel-gfx mailing list