skumara, thank you for reporting this bug to Ubuntu. Oneiric reached EOL on May 9, 2013. See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases
Is this reproducible in the latest release of Ubuntu via http://cdimage.ubuntu.com/daily-live/current/ ? If so, please execute the following via a terminal in order for the necessary debugging information to be attached: apport-collect 908904 ** This bug is no longer a duplicate of bug 719152 Laptop (amd fusion based) freezes when running on battery power ** Package changed: pm-utils (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Importance: Undecided => Low ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pm-utils in Ubuntu. https://bugs.launchpad.net/bugs/908904 Title: computer freeze while on baterry power, not freeze while on power cable connected Status in linux package in Ubuntu: Incomplete Bug description: While connected to battery computer freeze after 5 minutes or so. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: pm-utils 1.4.1-8ubuntu1 ProcVersionSignature: Ubuntu 3.0.0-15.24-generic 3.0.13 Uname: Linux 3.0.0-15-generic x86_64 NonfreeKernelModules: fglrx ApportVersion: 1.23-0ubuntu4 Architecture: amd64 Date: Tue Dec 27 08:21:57 2011 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) PackageArchitecture: all ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: pm-utils UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/908904/+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