Re: [PATCH] drm/edid: drop the dcc probe before drm_do_get_edid

From: Lubomir Rintel
Date: Sun Feb 11 2018 - 05:57:02 EST


On Sat, 2018-02-10 at 19:03 +0100, Lubomir Rintel wrote:
> Now that drm_do_get_edid() handles override and firmware EDIDs it makes
> no sense to conditionalize it with a DCC probe. On the contrary -- the
> overrides are useful specifically when DCC is not functioning.
>
> drm_do_get_edid() already bails out when DCC fails, there's no need for
> an extra check. It seems entirely safe to just drop this.
>
> Working around the issue by forcing the connector on is not a good
> solution because that way the desktop shell can't tell when a monitor is
> plugged in or removed.
>
> Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
> Fixes: 53fd40a ("drm: handle override and firmware EDID at drm_do_get_edid() level")

Please disregard this, should have given it more thought. Sorry.

It removes a symbol other modules use, and typoes DDC/DCC in the commit
message. Moreover it doesn't actually seem to solve my problem -- will
try to follow up with a better fix.

Lubo