Public bug reported: I have just install laptop-mode-tools, and noticed that `/usr/sbin/laptop_mode` gets executed twice when (un)plugging the laptop:
Aug 27 04:29:05 host laptop-mode: Determining power state from /sys/class/power_supply/AC/online. Aug 27 04:29:05 host laptop-mode: Determining power state from /sys/class/power_supply/AC/online. Aug 27 04:29:05 host laptop-mode: Not trying other options, already found a power supply. Aug 27 04:29:05 host laptop-mode: Not trying other options, already found a power supply. Aug 27 04:29:05 host laptop-mode: Battery level polling is disabled. Aug 27 04:29:05 host laptop-mode: Battery level polling is disabled. Aug 27 04:29:05 host laptop-mode: Prelim lock acquisition on descriptor 8 with pid 21553 Aug 27 04:29:05 host laptop-mode: Couldn't acquire prelim lock on descriptor 8 with pid 21554 Aug 27 04:29:05 host laptop-mode: Prelim lock acquisition on descriptor 9 with pid 21553 Aug 27 04:29:05 host laptop-mode: Couldn't acquire prelim lock on descriptor 9 with pid 21554 That's not really a problem, since the second instance will then recognize that nothing needs to get changed in the end: Aug 27 04:29:06 host laptop-mode: Laptop mode Aug 27 04:29:06 host laptop-mode: Checking if desired state is different from current state. Aug 27 04:29:06 host laptop-mode: enabled, not active [unchanged] ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: laptop-mode-tools 1.64-1ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4 Uname: Linux 3.13.0-34-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.3 Architecture: amd64 CurrentDesktop: GNOME Date: Wed Aug 27 04:33:12 2014 InstallationDate: Installed on 2012-05-28 (820 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) PackageArchitecture: all SourcePackage: laptop-mode-tools UpgradeStatus: Upgraded to trusty on 2014-05-01 (117 days ago) mtime.conffile..etc.laptop.mode.laptop.mode.conf: 2014-08-27T04:17:06.301549 ** Affects: laptop-mode-tools (Ubuntu) Importance: Low Status: New ** Tags: amd64 apport-bug third-party-packages trusty ** Changed in: laptop-mode-tools (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1361935 Title: laptop_mode gets executed twice on (un)plug events To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/laptop-mode-tools/+bug/1361935/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs