When I close the lid of my XPS13 the system goes to sleep regularly. Sometimes it stays asleep but some other times it wakes up consuming battery. I can't find the reason why this is happening. Here are the recent logs:
from pm-suspend.log
Thu Jun 20 08:59:47 PDT 2013: performing suspend
Thu Jun 20 11:00:18 PDT 2013: Awake.
Thu Jun 20 11:00:18 PDT 2013: Running hooks for resume
from syslog at the same time:
Jun 20 08:59:47 sputacchio kernel: [28423.044067] psmouse serio1: Trackpad at is
a0060/serio1/input0 lost sync at byte 1
Jun 20 08:59:47 sputacchio kernel: [28423.045743] psmouse serio1: Trackpad at is
a0060/serio1/input0 - driver resynced.
Jun 20 11:00:18 sputacchio acpid: client 1669[0:0] has disconnected
Jun 20 11:00:18 sputacchio kernel: [28423.074982] psmouse serio1: Trackpad at is
a0060/serio1/input0 lost sync at byte 1
Running stock kernel
# uname -a
Linux sputacchio 3.8.0-25-generic #37-Ubuntu SMP Thu Jun 6 20:47:07 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
I disabled Smart Connect in the BIOS but the laptop resumed last night without a reason (lid closed, sitting on the desk)
Wed Jun 26 00:12:46 CEST 2013: performing suspend
Wed Jun 26 01:53:10 CEST 2013: Awake.
Wed Jun 26 01:53:10 CEST 2013: Running hooks for resume
Strangely there is no sign of activity on syslog around that time, so I'm assuming whatever wakes the system up is not the kernel. I have also disabled Intel Smart Start technology… Any other clues on things to disable?
Best Answer
This Launchpad bug looks like it might be the same issue you're experiencing: https://bugs.launchpad.net/dell-sputnik/+bug/1161962
I suggest that you add a post to that bug describing your symptoms, and in particular the message "acpid: client 1669[0.0] has disconnected".
The Trackpad lost sync / resynced messages are normal side-effects of the suspend/resume process (they occur around every suspend/resume on the XPS 13) but the acpid message is not common, and might relate to your wakeup problem.