Arch Linux

Bradan

Member

Registered: 2015-10-13

Posts: 21

Hibernation: halts, but start after a while again

Hello,

I've got a problem with hibernation (I think it is systemd hibernation, I use the gnome 3 extension "hibernate status button"). It doesn't happen always, just sometimes, when I hibernate. The PC shuts down correctly, but after 3-10 seconds it is powering up again. My mainboard is an asrock z77 extreme4 and I think I disabled everything in the BIOS that seems to cause boot events. I've even used scripts that disable the enabled devices listed on /proc/acpi/wakeup as you can see here:

$ cat /proc/acpi/wakeup 
Device	S-state	  Status   Sysfs node
CIR	  S3	*disabled
PS2K	  S4	*disabled
PS2M	  S4	*disabled
UAR1	  S4	*disabled  pnp:00:06
P0P1	  S4	*disabled
USB1	  S3	*disabled
USB2	  S3	*disabled
USB3	  S3	*disabled
USB4	  S3	*disabled
USB5	  S3	*disabled
USB6	  S3	*disabled
USB7	  S3	*disabled
RP01	  S4	*disabled  pci:0000:00:1c.0
RP02	  S4	*disabled
RP03	  S4	*disabled
RP04	  S4	*disabled  pci:0000:00:1c.3
RP05	  S4	*disabled  pci:0000:00:1c.4
RP06	  S4	*disabled  pci:0000:00:1c.5
BR40	  S4	*disabled  pci:0000:05:00.0
RP07	  S4	*disabled  pci:0000:00:1c.6
RP08	  S4	*disabled  pci:0000:00:1c.7
PEG0	  S4	*disabled  pci:0000:00:01.0
PEGP	  S4	*disabled
PEG1	  S4	*disabled
PEG2	  S4	*disabled
PEG3	  S4	*disabled
GLAN	  S4	*disabled
EHC1	  S4	*disabled  pci:0000:00:1d.0
EHC2	  S4	*disabled  pci:0000:00:1a.0
XHC	  S4	*disabled  pci:0000:00:14.0
HDEF	  S4	*disabled  pci:0000:00:1b.0

How can I find out what causes the restart of the PC? Is there any kind of information stored anywhere?

A second problem I have is that the resume sometimes fails, but less often than my first problem. This means, that the grub bootloader shows up, tries to boot with resume, the boot fails, reboots, grub shows again and the system boots as usual (without resume). What can I do against resume failures and how can I find out what was going wrong? Journalctl doesn't seem to show me any errors of it. I actually only see the log since the last boot. I've set the swap partition as resume parameter into the grub configuration and updated grub.

Kind regards,
Daniel