I've had this problem since 10.10. (Now on 11.10). It was just annoying up to this point, but gnome3 only lets you hibernate or shutdown for critical battery.
If I had to wager, I'd say the problem has to do with using the battery remaning charge divided by the battery *designed* full capacity, not the battery present full capacity. Batteries lose maximum charge hold over time. My laptop is about 1.5 years old, and 'lshal | grep battery' yields this: battery.charge_level.design = 62160 battery.charge_level.last_full = 31646 When I get to about 40-50% of possible charge (maybe ~14000 in units from above) the battery warnings start coming. I usually have 30 - 40 minutes (get about an hour and some change on a full charge). 14000/31646 = 40%. But if the *designed* capacity were used instead 14000/62160 = 22%, now we starting to get towards warning territory. I can use the battery down until the hardware warning comes on ok, but if i suspend and wake it with the battery at 50% (roughly) or lower, it will immediately hibernate. I can then restore it, and it runs fine. -- 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/877556 Title: Calculation of Battery Power Consumsion was Mistake Status in “gnome-power-manager” package in Ubuntu: Confirmed Bug description: Many times the power-manager was over estimate power consumption it cause of unexpected hibernate. Some time it show that my laptop consume 1,000 W, it was impossible and never happen in Win7 on same laptop. Please see the attached picture for consideration. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: gnome-power-manager 3.2.0-0ubuntu1 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Uname: Linux 3.0.0-12-generic x86_64 NonfreeKernelModules: fglrx wl ApportVersion: 1.23-0ubuntu3 Architecture: amd64 Date: Tue Oct 18 22:58:43 2011 ExecutablePath: /usr/bin/gnome-power-statistics GnomeSessionIdleInhibited: No GnomeSessionInhibitors: None GnomeSessionSuspendInhibited: No InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007) MachineType: Hewlett-Packard Compaq Presario CQ41 Notebook PC ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=1968bb09-d725-4d13-8e8e-75a43c0d8adb ro vga=792 quiet quiet splash vt.handoff=7 SourcePackage: gnome-power-manager UpgradeStatus: Upgraded to oneiric on 2011-10-13 (4 days ago) XsessionErrors: (gwibber-service:2078): libindicate-WARNING **: Menu being changed when the indicator is visible. Listeners will NOT be notified of this change. dmi.bios.date: 12/10/2009 dmi.bios.vendor: Insyde dmi.bios.version: F.17 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 3644 dmi.board.vendor: Hewlett-Packard dmi.board.version: 40.23 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: N/A dmi.modalias: dmi:bvnInsyde:bvrF.17:bd12/10/2009:svnHewlett-Packard:pnCompaqPresarioCQ41NotebookPC:pvr0396200000000D10000000000:rvnHewlett-Packard:rn3644:rvr40.23:cvnHewlett-Packard:ct10:cvrN/A: dmi.product.name: Compaq Presario CQ41 Notebook PC dmi.product.version: 0396200000000D10000000000 dmi.sys.vendor: Hewlett-Packard gnome-power-bugreport: Error: [Errno 2] No such file or directory To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/877556/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
