linux-kernel - Re: ACPI: Idle Processor PM Improvements

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Message-ID: <20060906145849.GE2623@cosmic.amd.com>
Date:	Wed, 6 Sep 2006 08:58:49 -0600
From:	"Jordan Crouse" <jordan.crouse@....com>
To:	"Pavel Machek" <pavel@....cz>
cc:	"Jim Gettys" <jg@...top.org>, "Brown, Len" <len.brown@...el.com>,
	"Linux Kernel ML" <linux-kernel@...r.kernel.org>,
	"Dominik Brodowski" <linux@...inikbrodowski.net>,
	"ACPI ML" <linux-acpi@...r.kernel.org>,
	"Adam Belay" <abelay@...ell.com>,
	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>,
	"Arjan van de Ven" <arjan@...ux.intel.com>, devel@...top.org,
	"Bjorn Helgaas" <bjorn.helgaas@...com>
Subject: Re: ACPI: Idle Processor PM Improvements

On 06/09/06 12:37 +0200, Pavel Machek wrote:
> Hi!
> 
> > > 2.4 and 2.6 are *very* different here. You'll probably need to optimize freezer
> > > in 2.6 a bit...
> > > 						
> > 
> > Among other problems: e.g. 2.4 did not automatically do a VT switch; 2.6
> > does; we'll have to have a way to signal "we're a sane display driver;
> > don't switch away from me on suspend".
> 
> Not like that, please.
> 
> You are using X running over framebuffer, right? So that kernel is
> controlling the graphics hardware. In such case it is safe to avoid VT
> switch.

Actually not - the Geode GX has full 2D hardware acceleration with a complete
X driver to match.  No Xfbdev here.

Jordan

Pavel
-- 
Jordan Crouse
Senior Linux Engineer
Advanced Micro Devices, Inc.
<www.amd.com/embeddedprocessors>


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