Hm ok, it looks like indicator-power's icon is gone because indicator- power-service isn't running.
1. Is there anything for indicator-power in /var/crash? 2. What happens if you run "$ start indicator-power" ? ** Changed in: indicator-power (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of DX Packages, which is subscribed to indicator-power in Ubuntu. https://bugs.launchpad.net/bugs/1538760 Title: battery icon gone Status in indicator-power package in Ubuntu: Incomplete Bug description: Usually the power/battery indicator works as expected. However, now I turned on my laptop while not connected to AC power, and there is no battery icon at all. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: indicator-power 12.10.6+15.10.20151005.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.2.0-25.30-generic 4.2.6 Uname: Linux 4.2.0-25-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 CurrentDesktop: Unity Date: Wed Jan 27 22:10:15 2016 InstallationDate: Installed on 2013-10-11 (838 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) SourcePackage: indicator-power UpgradeStatus: Upgraded to wily on 2016-01-18 (9 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-power/+bug/1538760/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp