linux-kernel - Re: [PATCH] PM / i915: Skip kernel VT switch during suspend/resume if KMS is used

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Date:	Mon, 25 Jan 2010 10:49:38 -0800
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, Len Brown <lenb@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	dri-devel@...ts.sourceforge.net, Eric Anholt <eric@...olt.net>,
	airlied@...ux.ie
Subject: Re: [PATCH] PM / i915: Skip kernel VT switch during suspend/resume
 if KMS is used

On Mon, 25 Jan 2010 18:43:50 +0000
Alan Cox <alan@...rguk.ukuu.org.uk> wrote:

> > This probably belongs in the core DRM KMS code instead of the
> > driver. I can imagine that there may be some X driver code that
> > still needs to be executed on suspend/resume for some drivers, so
> > this may introduce bugs, but it's definitely the right way to go.
> 
> You can have a mix of KMS and non KMS consoles active on different
> cards. So I don't think that is the case.

I pity users with that configuration.

But in that case we should be able to disable the VT switch disable
path; we just have to check each driver as it's loaded.

-- 
Jesse Barnes, Intel Open Source Technology Center
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