[Intel-gfx] [PATCH] drm/i915/crt: Do not rely upon the HPD presence pin

Daniel Vetter daniel at ffwll.ch
Sat Jun 9 00:22:12 CEST 2012


On Thu, May 31, 2012 at 01:08:53PM +0100, Chris Wilson wrote:
> Whilst most monitors do wire up the HPD presence pin, it seems quite a
> few KVM do not. Therefore if we simply rely on the HPD pin being
> asserted to indicate a connected monitor we fail miserable, so fall back
> to performing a DCC query for the EDID.
> 
> Reported-and-tested-by: Matthieu LAVIE <boiteamadmax at hotmail.com>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50501
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

Ok, this blew up ... Can you please resend, with Dave's suggestion for a
rectified commit message & comment and with a check added such that we
don't try to do load_detect on HAS_HOTPLUG machines - I guess it doesn't
work too well.

Thanks, Daniel
-- 
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48



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