awake from suspend to ram?

M.W. van der Grient mwgrient69 at
Thu May 17 16:54:36 UTC 2018

Hey Manu, thank you for responding to my resume issue. Suspending with
the more raw "echo mem > /sys/power/state" works great, resume not

I have installed Debian now to see if it was related to hardware
failure. But if I use your command (echo mem etc) resume works great
when I push the power button or Fn keys... . So that's not the issue.

There was no acpi involved. I did not installed it, so I guess that my
issue is related to my kernel config scales :-)
My kernel config is done with "make localmodconfig" and go from there.
Not the best method probably. I must admit that I am not the best
kernel configure person.
I am diving into the kernel ocean again today, hopefully with succes
resumeing my laptop (ThinkPad X240, i5 processor)
Cheers, Marco

2018-05-17 18:36 GMT+02:00 manu <maraku at>:
> Hi Marco,
> pm-suspend does extra things for sleeping to deal with some quirks of
> machines.
> Have you tried using "echo mem > /sys/power/state"? If that works, then
> there's
> a problem with pm-suspend, if not, then it's probably a problem with kernel
> config/acpi.
> Best,
> Manu
> On Wed, May 16, 2018 at 06:48:02PM +0200, M.W. van der Grient wrote:
>> Hi all,
>> If I use pm-suspend as root, the system goes to sleep. But there is no way
>> to resume. I kan hear a click sound from the soundcard, but the system
>> keeps sleeping.
>> I can push the power button, but there is also no reaction...
>> Wat is the best way to debug this problem?
>> Some information for you:
>> Using the new iso 3.4 CRUX
>> cat /proc/acpi/wakeup
>> Device  S-state   Status   Sysfs node
>> LID       S4    *enabled   platform:PNP0C0D:00
>> SLPB      S3    *enabled   platform:PNP0C0E:00
>> IGBE      S4    *disabled  pci:0000:00:19.0
>> EXP2      S4    *disabled  pci:0000:00:1c.1
>> XHCI      S3    *enabled   pci:0000:00:14.0
>> EHC1      S3    *enabled   pci:0000:00:1d.0
>> I have installed acpid, pm-utils and ofcourse enabled acpi_sleep in the
>> kernel to suspend to RAM.
>> If you need more information, let me know what!
>> Thank you for reading my email.
>> Marco
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