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Message-Id: <1207552602.26185.13.camel@pern>
Date:	Mon, 07 Apr 2008 09:16:42 +0200
From:	Romano Giannetti <romanol@...omillas.es>
To:	Soeren Sonnenburg <kernel@....de>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	bugme-daemon@...zilla.kernel.org,
	Jesse Barnes <jesse.barnes@...el.com>,
	suspend-devel@...ts.sourceforge.net
Subject: Re: 2.6.25-rc6 regression - hang on resume [Bug 10319]



On Fri, 2008-04-04 at 08:31 +0200, Soeren Sonnenburg wrote:
> On Fri, 2008-04-04 at 01:22 +0200, Rafael J. Wysocki wrote:

> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=10319
> > Subject		: 2.6.25-rc6 regression - hang on resume
> > Submitter	: Soeren Sonnenburg <kernel@....de>
> > Date		: 2008-03-25 04:44 (10 days old)
> 
> Yes. The machine resumes and display stays black using s2ram -f -p
> (blindly typing reboot etc on keyboard does what is expected). However
> display comes back on 2.6.24.

I can add that on my laptop (toshiba U305, Intel 945GM chipset), s2ram
-f -p -m which used to work ok, in X and console, in 2.6.24 stopped to
work (I tested -rc8, but I think it's like that since a long time).
Machine resumes but the screen stays off after that, although machine is
working (exactly as Soeren said). 

On the other hand, now the plain "echo mem > /sys/power/state" works
perfectly, from X and console. So some of the magic vbe save/restore of
s2ram mess something up for this card. 

Is it a regression for my laptop (is evidently one for Soeren)? On one
side, a "used to work" setup is broken, but it worked with userspace
hacks; now it works with the plain way, and that's clearly better.

I added on Cc: Jesse, to whom I confirmed that Intel suspend/resume was
ok on Feb, 21, [1] and suspend-devel list, because now I do not know
what to do with the whitelist I sent for s2ram for this machine...

Romano 

[1] http://marc.info/?l=linux-kernel&m=120362475121590&w=2

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