4

Running Mint 14. Sometimes I can suspend fine, but after my computer is on for a while, it no longer suspends. It wakes up after a second or so without any external inputs.

My guess is that I'm monitoring something I don't need to monitor:

>cat /proc/acpi/wakeup
Device  S-state   Status   Sysfs node
LID       S4    *enabled   
SLPB      S3    *enabled   
IGBE      S4    *enabled   pci:0000:00:19.0
EXP3      S4    *disabled  
XHCI      S3    *enabled   pci:0000:00:14.0
EHC1      S3    *enabled   pci:0000:00:1d.0
EHC2      S3    *enabled   pci:0000:00:1a.0
HDEF      S4    *disabled  pci:0000:00:1b.0

These devices are rather cryptic. Although it might be interesting to know what the devices are, all I really care about is the one that is causing my computer to wake up (so I can disable monitoring of that device). Is there a log file somewhere that keeps track of ACPI events that would tell me which device woke up my computer?

2

All the log record during the ACPI events will be recorded at

 /var/log/acpid.log

Open your terminal and type as

tail -f /var/log/acpi.log

that will lists you content of ACPI log file.

hope that helps.

3
  • 1
    I don't have acpi.log. I checked syslog, which shows that ACPI changed power states on several devices, then the CPUs went offline, then I got "Extended CMOS year:2000" (not sure if that is pre- or post- resume), then the next message is "ACPI: Low-level resume complete". So there isn't much syslogging of the actual resume process. Why is there no acpi.log?
    – crockeea
    Jul 15 '13 at 14:26
  • Some searches turned up apcid.log, which is not in /var/log.
    – crockeea
    Jul 15 '13 at 14:35
  • bump in the night
    – crockeea
    Jul 18 '13 at 14:32
0

Some acpi events seem to be here (linux mint 18 sarah)

 grep -i acpi /var/log/kern.log |head

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