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Date: Wed, 01 Aug 2007 04:08:33 +0200
From: Gabriel C <nix.or.die@googlemail.com>
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To: "Antonino A. Daplas" <adaplas@gmail.com>
CC: Daniel Drake <dsd@gentoo.org>, Zwane Mwaikambo <zwane@infradead.org>,
       "H. Peter Anvin" <hpa@zytor.com>,
       Andrew Morton <akpm@linux-foundation.org>,
       Jan Beulich <jbeulich@novell.com>, linux-kernel@vger.kernel.org,
       Andi Kleen <ak@suse.de>
Subject: Re: [PATCH] retrieve VBE EDID/DDC info independent of used video
 mode
References: <4678191D.76E4.0078.0@novell.com> <4686D85B.6090803@gentoo.org>	 <20070630154230.4ad373fa.akpm@linux-foundation.org>	 <4690E65B.5050607@gentoo.org>	 <20070708111404.1486e73c.akpm@linux-foundation.org>	 <46912E09.2070806@zytor.com> <4692BC61.9070500@gentoo.org>	 <4692BDEE.8020802@zytor.com> <4693BF02.2050705@gentoo.org>	 <4693C0A1.8010901@zytor.com> <4693CAFF.4000609@gentoo.org>	 <4693CCC6.7050400@zytor.com> <46AFCCBB.70307@gentoo.org>	 <Pine.LNX.4.64.0707311719540.5207@montezuma.windriver.com>	 <46AFDF3A.6080300@gentoo.org> <1185933291.4688.11.camel@daplas>
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Antonino A. Daplas wrote:
> On Tue, 2007-07-31 at 21:17 -0400, Daniel Drake wrote:
>> Zwane Mwaikambo wrote:
>>> Sorry if this has been hashed out before, but could you point me towards 
>>> the gentoo bugzilla entry? I'm trying to understand how your setup broke. 
>>> Which version VBE does your system have?
>> Here's the bug:
>> http://bugs.gentoo.org/show_bug.cgi?id=181067
>>
> 
> Looking at the dmesg output of the working and failing kernel, it does
> seem that there's no EDID block available in the failing kernel.
> 
>> How can we identify the VBE version?

You could use http://john.fremlin.de/programs/linux/read-edid/ and you get the EDID and VBE version


Regards,

Gabriel