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

From: Rafael J. Wysocki
Date: Fri Sep 30 2011 - 16:20:17 EST


On Friday, September 30, 2011, 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.
>
> 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.

What graphics is there in the system?

Rafael
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