Possible duplicate of https://bugs.launchpad.net/ubuntu/+source/acpi/+bug/967161
-- 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/1016388 Title: Alienware M17xR3 continues running off battery when adapter is re- plugged Status in “gnome-power-manager” package in Ubuntu: New Bug description: If the power source is removed from the laptop at any time while my computer is running, and then re-plugged back in, the laptop fails to recognize the source and continues to run off the battery. The problem did not exist in Ubuntu until the latest kernel and nvidia driver update (lucid-backports, kernel version 3.0.0-21-generic). Some observations: 1. If the power source is unplugged, the indicator does not switch to the "battery state" immediately, and only does so after about 4 seconds. 2. If, however, it does change to show the "battery" icon, it never switches back to "charging" when plugged back in. 3. The only way to get the battery to start charging again is to remove the battery when the laptop is plugged in (laptop switches off of course) and then boot back in. 4. If the power source is reconnected before the power icon switches to the battery icon, the system continues running like nothing ever happened, and continues charging. 5. When the battery has fallen into the non-charging state, even a regular power cycle will not get it to charge. Also, when in this state, the battery does not charge in Windows either (Windows however shows that a power source has been connected, but won't charge the battery). However, after doing the remove battery when plugged in trick, and booting into Windows, Windows properly recognizes when the adapter is plugged / unplugged and starts / stops charging accordingly. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/1016388/+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