Error: kernel cannot suspend to ram.

[Paul Smith]

On 10/1/07, Doncho N. Gunchev <gunchev at gmail.com> wrote:
> > > > > When running on the console the command 'pm-suspend', I get the following:
> > > > >
> > > > > $ pm-suspend
> > > > > Error: kernel cannot suspend to ram.
> > > > > $
>
> I just looked at pm-suspend's source. This error message means that
> in /sys/power/state there's no mem present (try 'cat /sys/power/state'
> to see what is supported).


$ cat /sys/power/state
standby disk
$


> > > The kernel thinks this machine can not suspend to ram.
> ...
> > > > $ uname -r
> > > > 2.6.22.9-91.fc7
> ...
> > The lspci output:
> >
> > 00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub (rev 02)
> > 00:01.0 PCI bridge: Intel Corporation 82945G/GZ/P/PL PCI Express Root Port (rev 02)
> > 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
> > 00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01)
> ...
> > 01:00.0 VGA compatible controller: nVidia Corporation GeForce 6500 (rev a1)
>
> This one can cause problems at resume, but not at suspend time :-)
> ...
> >
> > The output of 'cat /proc/cpuinfo' is:
> >
> > processor     : 0
> > vendor_id     : GenuineIntel
> > cpu family    : 15
> > model         : 4
> > model name    : Intel(R) Pentium(R) D CPU 2.80GHz
> > stepping      : 7
> > cpu MHz               : 2813.806
> ...
> > processor     : 1
> ...
> >
> > Paul
> >
>
> Is this a desktop (Pentium M was for mobile AFAIK), isn't it?

Yes, my computer is a desktop one.


> Has this machine ever been able to suspend to RAM?

Never.

> If so, have you changed something in your BIOS?
>
> Please check what these two say:
> grep -i 'power states' /var/log/messages
> grep -i 'suspend' /var/log/messages

Both commands return nothing.

Thanks, Doncho.

Paul




>
> I've seen something like / long ago :-) /:
> 'Software Suspend has malfunctioning SMP support. Disabled :('
> but have no idea what the current status is...
>
> --
> Regards,
>   Doncho N. Gunchev, GPG key ID: 0EF40B9E, Key server: pgp.mit.edu
>
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