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

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Message-ID: <cb7bb73a0702041317u4ca2fbabp45cf56526e57c982@mail.gmail.com>
Date:	Sun, 4 Feb 2007 22:17:08 +0100
From:	"Giuseppe Bilotta" <giuseppe.bilotta@...il.com>
To:	"Luca Tettamanti" <kronos@...ple.it>
Cc:	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 2/4/07, Luca Tettamanti <kronos@...ple.it> wrote:
> Giuseppe, can you send me the EDID block of your monitor?

I'd gladly do it, if I knew how to retrieve it ... because apparently,
get-edid doesn't work, even though both the nv driver for X and
nvidiafb manage to retrieve it.

This is the output from get-edid

"""
get-edid: get-edid version 1.4.1

	Performing real mode VBE call
	Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0
	Function supported
	Call successful

	VBE version 300
	VBE string at 0x11110 "NVidia"

VBE/DDC service about to be called
	Report DDC capabilities

	Performing real mode VBE call
	Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0
	Function supported
	Call successful

	Monitor and video card combination does not support DDC1 transfers
	Monitor and video card combination does not support DDC2 transfers
	0 seconds per 128 byte EDID block transfer
	Screen is not blanked during DDC transfer

Reading next EDID block

VBE/DDC service about to be called
	Read EDID

	Performing real mode VBE call
	Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0
	Function supported
	Call failed

The EDID data should not be trusted as the VBE call failed
Error: output block unchanged
"""

Anything else I can try?

-- 
Giuseppe "Oblomov" Bilotta
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