linux-kernel - Re: [Suspend-devel] 2.6.25-rc2 System no longer powers off after suspend-to-disk. Screen becomes green.

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Message-ID: <20080218063146.GB3940@ucw.cz>
Date:	Mon, 18 Feb 2008 06:31:47 +0000
From:	Pavel Machek <pavel@....cz>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Jeff Chua <jeff.chua.linux@...il.com>,
	suspend-devel List <suspend-devel@...ts.sourceforge.net>,
	Dave Airlie <airlied@...ux.ie>, Greg KH <gregkh@...e.de>,
	lkml <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-acpi@...r.kernel.org,
	Jesse Barnes <jesse.barnes@...el.com>
Subject: Re: [Suspend-devel] 2.6.25-rc2 System no longer powers off after suspend-to-disk. Screen becomes green.

Hi!

> It's "snapshot-and-restore", and my opinion is that:
> 
>  - it should *never* call "suspend()"/"resume()" at all (that should be
>    reserved purely for suspend-to-RAM and has real power management 
>    issues!)

Hmm, entering S4 seems like good place to call suspend() for... unless
you want separate freeze()/unfreeze(), suspend()/resume(),
suspend_s4() and halt() callbacks.
						Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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