I have had this problem on my Toshiba Portege R-100 with both Ubuntu 9.04 and Puppy Linux 4.3.1, but not under Windows XP. The machine is currently running Puppy Linux 4.3.1 (a derivative of the Debian/Ubuntu core).
Based on some comments above, I did a little testing and I found that the machine's Ethernet port was powered up even when the machine had been shut down by the Linux shutdown procedure. The R-100 uses an Intel Ethernet card, and Linux uses the "e100" LKM for this card. Unloading the e100 module (with modprobe -r) before shutting down reduces the battery drain from 2% per hour to 0.2% per hour when the machine is off. -Shel -- Toshiba laptop battery is drained while shut down https://bugs.launchpad.net/bugs/110784 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs