I believe I may be seeing this exact behavior, however it is not clear by your description. My battery will report a proper charge, then randomly drop down the 10 or less percent. This has happened on a MacBook Pro 8,2 and 2,1. Has to have something to do with how ubuntu deals with the hardware. upower reports inaccurate stats too, so it's not something to do with gnome, as it also happens in MATE and KDE. I'm going to submit my own bug, just to make sure.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-power-manager in Ubuntu. https://bugs.launchpad.net/bugs/715476 Title: Battery statistics are not correct. Status in “gnome-power-manager” package in Ubuntu: Confirmed Bug description: Binary package hint: gnome-power-manager This is not strictly a new bug - but it covers two that have expired (#421070 and #49661) and probably others as well. Symptoms: Battery is not reporting charging when it is Battery is not reporting discharging when it actually is Consequently, laptop does not issue low charge warnings and abrubtly shuts down instead of hibernating or suspending. Battery does not report correct percentage or correct time remaining (either time to full charge when plugged into A/C or time to full discharge when running on battery power). What should happen Battery (and GPM icon) showing discharge when running off battery Battery and GPM showing correct - or near correct - time remaining at current usage, and corresponding percentage of battery charge Laptop issuing warning/suspending on highest warning level in accordance with set policy Battery (and GPM icon) showing charging when plugged into A/C and charging Battery (and GPM icon) showing time remaining til fully charged (and/or time available on battery power if unplugged an run at current power consumption levels. Batter (and GPM icon) showing percentage charge to complete charge when plugged into A/C and charging. This should be a highly critical bug - which would go a long way to fixing Bug #1 if you want the market to actually use Ubuntu in a serious and professional manner. ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: gnome-power-manager 2.30.0-0ubuntu1 ProcVersionSignature: Ubuntu 2.6.31-20.58-generic-pae Uname: Linux 2.6.31-20-generic-pae i686 Architecture: i386 Date: Tue Feb 8 17:13:44 2011 GnomeSessionIdleInhibited: No GnomeSessionInhibitors: None GnomeSessionSuspendInhibited: No MachineType: Apple Computer, Inc. MacBookPro2,2 ProcCmdLine: root=UUID=5a8a639a-f0f5-46c3-a778-c851b192212b ro noquiet ProcEnviron: LANGUAGE=en_GB:en LANG=en_GB.utf8 SHELL=/bin/bash SourcePackage: gnome-power-manager dmi.bios.date: 08/13/07 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP22.88Z.00A5.B07.0708131242 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F42187C8 dmi.board.vendor: Apple Computer, Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag dmi.chassis.type: 8 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F42187C8 dmi.modalias: dmi:bvnAppleInc.:bvrMBP22.88Z.00A5.B07.0708131242:bd08/13/07:svnAppleComputer,Inc.:pnMacBookPro2,2:pvr1.0:rvnAppleComputer,Inc.:rnMac-F42187C8:rvrPVT:cvnAppleInc.:ct8:cvrMac-F42187C8: dmi.product.name: MacBookPro2,2 dmi.product.version: 1.0 dmi.sys.vendor: Apple Computer, Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/715476/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
