I had the same problem with my X61 and judging from various reports around the Internet, this seems to be rather common (even with Windows). I believe that some parts of the system are not completely shut down when hibernating through ACPI. For instance, the network card remains active (don't really know, if this is the BIOS' or Ubuntu's fault). Fortunately there appears to be a simple workaround: You have to switch from hibernate via ACPI to a complete shutdown (that is from "platform" to "shutdown" in/sys/power/disk):
echo "shutdown" > /sys/power/disk or for a more permanent solution, if you are using sysfsutils: Add the line power/disk = shutdown to /etc/sysfs.conf. Another possibility should be (I haven't tested that): Add a file to /etc/pm/config.d (f.i.: /etc/pm/config.d/99thinkpad_workaround) containing: # Works around the battery drain on thinkpads when hibernating # through ACPI. HIBERNATE_MODE="shutdown" Interestingly enough, I have HIBERNATE_MODE=shutdown in /etc/default/acpi-support, but that doesn't seem to have any effect on pm-utils (which are used to to the actual hibernation). Could you confirm that this works? Maybe we should forward the solution to the pm-utils guys. Cheers, Konrad -- battery drain during hibernation https://bugs.launchpad.net/bugs/259496 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
