linux-kernel - Re: Regression DRM/i915/KMS: VGA connector unusable after 2.6.31-rc8-git1, DVI connector ok

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Message-ID: <20090908222821.GA10175@Pilar.aei.mpg.de>
Date:	Wed, 9 Sep 2009 00:28:21 +0200
From:	"Carlos R. Mafra" <crmafra2@...il.com>
To:	Knut Petersen <Knut_Petersen@...nline.de>
Cc:	Linus Torvalds <torvalds@...l.org>, airlied@...ux.ie,
	linux-kernel@...r.kernel.org
Subject: Re: Regression DRM/i915/KMS: VGA connector unusable after
	2.6.31-rc8-git1, DVI connector ok

On Wed  9.Sep'09 at  0:19:04 +0200, Knut Petersen wrote:
> Hi everybody!
> 
> During the release cycle of the 2.6.31-rc* kernels KMS started to work
> on my computer.
> 
> Booting with a monitor attached to both the VAG and the DVI connectors,
> kernel 2.6.31-rc8-git1
> detects both monitors correctly and sets the native video mode.
> 
> Booting the same configuration with kernel 2.6.31-rc8-git2 ... -rc9-git1
> gives a different result:
> the DVI-attached monitor is still working perfectly, the VGA-attached
> monitor does not detect a
> valid video signal and switches off.

I had a similar problem between -rc8 and -rc9, and the patch here

http://marc.info/?l=linux-kernel&m=125239311508274&w=2

fixed it for me.
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