OK, I've found a workaround for this which appears to work for me with Mint even though it's intended for Ubuntu:
http://www.hecticgeek.com/2012/09/disabling-wake-on-lan-in-ubuntu-might- save-a-tiny-bit-of-power-on-your-laptop/ You will probably need to use the solution which begins at step 5. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1098697 Title: High Battery discharge rate when Laptop is off. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1098697/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
