Removing AC adapter creates battery spikes

[Earl Malmrose]

Binary package hint: gnome-power-manager

When plugging or unplugging the ac adapter, power usage spikes causing wildly inaccurate battery life remaining estimates. This will cause a "Laptop battery is critically low. Computer will hibernate..." dialog box even if the battery is full.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gnome-power-manager 2.30.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic i686
Architecture: i386
Date: Mon Jun 7 21:42:13 2010
GnomeSessionIdleInhibited: No
GnomeSessionInhibitors: None
GnomeSessionSuspendInhibited: No
LiveMediaBuild: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: MICRO-STAR INTERNATIONAL CO., LTD MS-N014
ProcCmdLine: BOOT_IMAGE=/casper/vmlinuz noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash --
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-power-manager
dmi.bios.date: 01/08/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: EN014IG6.10k
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: MS-N014
dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD
dmi.board.version: REV:1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: MS-N014
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrEN014IG6.10k:bd01/08/2010:svnMICRO-STARINTERNATIONALCO.,LTD:pnMS-N014:pvrREV1.0:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-N014:rvrREV1.0:cvnMS-N014:ct10:cvrN/A:
dmi.product.name: MS-N014
dmi.product.version: REV:1.0
dmi.sys.vendor: MICRO-STAR INTERNATIONAL CO., LTD

[Earl Malmrose (earl)]

Here is the output from upower.

[Andrius (kaikaris-andrius)]

I have the same problem. Same machine: MSI Wind U130.
After removing AC power the power manager says that the battery is critically low, but the pop-up baloon shows 100% and oddly enough 2 minutes remaining. The computer goes to hibernate.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.