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

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Date:	Fri, 23 Feb 2007 01:03:31 +0800
From:	"Antonino A. Daplas" <adaplas@...il.com>
To:	Giuseppe Bilotta <giuseppe.bilotta@...il.com>
Cc:	James Simmons <jsimmons@...radead.org>,
	Luca Tettamanti <kronos@...ple.it>,
	linux-fbdev-devel@...ts.sourceforge.net,
	Andrew Morton <akpm@...l.org>, Dave Airlie <airlied@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [Linux-fbdev-devel] [PATCH] nvidiafb: allow ignoring EDID info

On Thu, 2007-02-22 at 16:55 +0100, Giuseppe Bilotta wrote:
> On 2/22/07, Antonino A. Daplas <adaplas@...il.com> wrote:
> However, I'm still getting the same snowy effects, which doesn't come
> as a surprise since the actual mode timings used are just the same ...
> 

BTW, you can also use CVT modes for nvidiafb, even if the mode in
question is not present in the EDID block.  For example:

video=nvidiafb:1024x768M@60 or 1600x1200M@60 

(The 'M' tells fb_find_mode to do a CVT calculation instead).

If you use a reduced-blanking CVT mode, it might even reduce the snow of
your DVI even at the highest resolution.  So:

video=nvidiafb:1600x1200MR@60

(The additional 'R' will do reduced-blanking CVT calculation)

Tony

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