I found a workaround for Ubuntu 16.04 LTS: (1) Open "Network connections" ("nm-connection-editor" from command line) (2) Try to figure out which "Ethernet" connection is iPad (3) Select the iPad and click "Edit" (4) On "General" tab, uncheck "Automatically connect to this network when it is available" (5) On "IPv4 Settings" tab select "Method: Disabled" (6) On "IPv6 Settings" tab select "Method: Ignore"
It seems that the issue is caused by iPad/iPhone pretending to offer Ethernet connection and "upowerd" automatically trying to enable that connection. This operation fails and "upowerd" is stupid enough to repeat the process forever. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to upower in Ubuntu. https://bugs.launchpad.net/bugs/876279 Title: Upowerd excessive CPU usage Status in upower package in Ubuntu: Confirmed Bug description: Fresh installation of Oneiric on Activo A-1100 (Atom N450-based) netbook. Top reports CPU usage fluctuating between 60% and 100%, averaging around 80%. Machine still marginally usable, due to having a second core. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: upower 0.9.13-1 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Uname: Linux 3.0.0-12-generic i686 NonfreeKernelModules: wl ApportVersion: 1.23-0ubuntu3 Architecture: i386 Date: Mon Oct 17 18:59:31 2011 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012) ProcEnviron: LANGUAGE=en_AU:en PATH=(custom, no user) LANG=en_AU.UTF-8 SHELL=/bin/bash SourcePackage: upower UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/upower/+bug/876279/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp