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

[Linus Torvalds]

On Wed, 9 Sep 2009, Knut Petersen wrote:
> 
> 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 just pushed out something that may fix it. It was reported to fix 
another situation that sounds _somewhat_ similar (ie VGA out on a mobile 
chipset)

It's commit 7c8460d: "drm/i915: fix mask bits setting", but it may take a 
few minutes to mirror out to the public machines, so if you don't see it 
yet, here's the patch if you want to try.

			Linus

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