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Subject: Re: [Linux-fbdev-devel] [PATCH] nvidiafb: allow ignoring EDID info
From: "Antonino A. Daplas" <adaplas@gmail.com>
To: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Cc: James Simmons <jsimmons@infradead.org>, Luca Tettamanti <kronos@people.it>,
       linux-fbdev-devel@lists.sourceforge.net, Andrew Morton <akpm@osdl.org>,
       Dave Airlie <airlied@gmail.com>, linux-kernel@vger.kernel.org
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Date: Mon, 26 Feb 2007 20:46:25 +0800
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On Sun, 2007-02-25 at 14:16 +0100, Giuseppe Bilotta wrote:
> On 2/25/07, Antonino A. Daplas <adaplas@gmail.com> wrote:
> > On Sun, 2007-02-25 at 11:26 +0100, Giuseppe Bilotta wrote:
> > >
> > > Applied. No noticeable difference, in the sense that the EDID debug
> > > output is still the same and so is the snow effect.
> >
> > Here's a temporary workaround:
> >
> > In drivers/video/nvidia/nv_i2c.c:nvidia_probe_i2c_connector(),comment
> > this out:
> >
> >         if (par->chan[conn - 1].par)
> >                 edid = fb_ddc_read(&par->chan[conn - 1].adapter);
> >
> > and make sure CONFIG_FIRMWARE_EDID=y.
> 
> With this patch, I don't get any dmesg info about my monitor EDID, but
> I still get the snow. Could it be that there's something else on my
> system which is setting the video to some absurd timings when I
> switchg on the framebuffer console? I'm running an up-to-date debian
> unstable.
> 

At this point, I don't know.  You're the first person to report this
kind of problem. I'm still studying the nvidiafb and Xorg source code.

Tony