sarath.s, thank you for providing the requested information. As per https://drivers.toshiba-india.com/driversdetails.aspx an update is available for your BIOS (v2.70). If you update to this, does this change anything?
** Tags added: bios-outdated -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/995794 Title: toshiba l640 battery not detected in ubuntu 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/995794/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
