On Mon, 9 Sep 2019 at 08:52, Deucher, Alexander
wrote:
>
> > -Original Message-
> > From: amd-gfx On Behalf Of
> > Dave Airlie
> > Sent: Sunday, September 1, 2019 11:09 PM
> > To: amd-gfx@lists.freedesktop.org
> > Subject: [PATCH] radeon: add op
> -Original Message-
> From: amd-gfx On Behalf Of
> Dave Airlie
> Sent: Sunday, September 1, 2019 11:09 PM
> To: amd-gfx@lists.freedesktop.org
> Subject: [PATCH] radeon: add option so DVI always respect HPD over DDC
>
> From: Dave Airlie
>
> Purelink FX-D1
From: Dave Airlie
Purelink FX-D120 (DVI over fibre extendeders) drive the HPD line
low on the GPU side when the monitor side device is unplugged
or loses the connection. However the GPU side device seems to cache
EDID in this case. Per DVI spec the HPD line must be driven in order
for EDID to be
