Arch Linux

jsrn

Member

Registered: 2014-01-09

Posts: 3

Spurious sleep/suspend

I love that my arch sleeps and resumes in a matter of seconds. But not so much that I want it to start showing off. My laptop has gotten a nasty habit of spuriously, and competely without warning while I'm sitting at the computer, going to sleep. Rather strange.

Last time it happened, the log showed this:

... stuff hours ago
Jan 22 10:16:14 mole upowerd[575]: (upowerd:575): UPower-Linux-WARNING **: energy 44,100000 bigger than full 43,890000
Jan 22 10:16:15 mole systemd[1]: Starting Sleep.
Jan 22 10:16:15 mole systemd[1]: Reached target Sleep.
Jan 22 10:16:15 mole systemd[1]: Starting Suspend...
Jan 22 10:16:15 mole systemd-sleep[7629]: Suspending system...
Jan 22 10:16:22 mole systemd[1]: Time has been changed
Jan 22 10:16:22 mole kernel: PM: Syncing filesystems ... done.
... blah blah, rest of resume

So the first thing I checked for is other occurrences of the UPower warning, but this seems to happen every time I charge the battery, and hasn't caused a spurious sleep at least the last five other times it happened. I'm also pretty sure, though not completely possitive, that the spurious sleep has occurred earlier without that warning.

So, where do I start looking when the journal doesn't tell me more?

I'm on a Thinkpad T430s with SSD disk.