Re: [Linux-fbdev-devel] [PATCH] nvidiafb: allow ignoring EDID info

From: Antonino A. Daplas
Date: Wed Feb 21 2007 - 18:40:58 EST

On Wed, 2007-02-07 at 00:08 +0100, Giuseppe Bilotta wrote:
> On 2/6/07, James Simmons <jsimmons@xxxxxxxxxxxxx> wrote:
> >
> > If you can find post the manufacturer and model number we can place it on
> > the backlist in fbmon. Also we should figure out what is wrong and fix it.
> It's the UltraSharp UXGA display that used to come with Dell Inspiron
> 8200, 15" with a resolution of 1600x1200. I've been looking all around
> for more info on it, but the only things I could find were posts that
> remarked the problems Windows nVidia drivers have with some of these
> (no image when running at 1600x1200), and other posts about banded
> gradients with Windows drivers on Radeon video cards (but I get banded
> gradients also win my nVidia card, on Linux, regardless of which
> driver I use, binary, nv or nouveau).
> As mentioned in another post in this thread, I can't get any info out
> of the i2c busses, because even when I have them available (i.e. after
> loading nvidiafb) I get XXXX all around (on all three of them).
> Suggestions on how to get the information welcome.

Is this the same monitor you posted here?

If yes, we already have the manufacturer and model code. The main
problem is that the EDID of this display has no sync range (H: 75-75kHz
and V: 60-60Hz). Extending Hsync from 30-75kHz as a fix to the EDID
block shouldn't be too hard.

I already have a patch for this which I forgot to send to you
before :-). If you can confirm that this is still the same hardware,
I'll send you a test patch


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