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

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Message-ID: <4E895EC3.3050800@linux.vnet.ibm.com>
Date:	Mon, 03 Oct 2011 12:35:39 +0530
From:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
To:	Zan Lynx <zlynx@....org>
CC:	rjw@...k.pl, linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Samsung Series 9 seems to require acpi=nonvs to resume properly

On 10/01/2011 01:39 AM, Zan Lynx wrote:
> 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.

Could you provide any error logs you found? That could give us a clue as to
what is going wrong...

> 
> 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.
> 


-- 
Regards,
Srivatsa S. Bhat  <srivatsa.bhat@...ux.vnet.ibm.com>
Linux Technology Center,
IBM India Systems and Technology Lab
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