linux-kernel - Re: Samsung Series 9 seems to require acpi=nonvs to resume properly

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Date:	Fri, 30 Sep 2011 14:09:14 -0600
From:	Zan Lynx <zlynx@....org>
To:	rjw@...k.pl
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Samsung Series 9 seems to require acpi=nonvs to resume properly

On Thu, 2011-09-29 at 14:51 -0600, Zan Lynx wrote:
> After being annoyed that the latest Fedora 2.6.40 (aka 3.0 something)
> kernels would not suspend/resume on my laptop I followed a Ubuntu forum
> suggestion to use acpi=nonvs. This worked, or at least it is working
> today with Fedora 15's 2.6.40.4-5.fc15.x86_64.
> 
> The system is also booting via UEFI if that makes any difference.
> 
> I understand that there is a no-NVS blacklist in the kernel. Should the
> Samsung Series 9 be added to this list? Or could it be a different
> suspend/resume problem entirely?

Please ignore this about nonvs. nonvs has nothing to do with the
suspend/resume problem on this laptop.

Instead it seems to involve reboots, which is crazy. From a cold
power-on start, suspend resume will always fail. But if the laptop is
rebooted first, suspend and resume appear to work. What the heck? I have
no clue how to debug this.

So now it appears that everything I ever tried to fix this only seemed
to work because I rebooted after changing GRUB or module options.

-- 
Knowledge Is Power
Power Corrupts
Study Hard
Be Evil

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