Okay scrap what I said earlier. I read msrgi's fix and it does work. I'll post clearer instructions on how to do it.
Open a terminal (Accessories -> Terminal) and type: sudo gedit /etc/acpi/power.sh (you can replace gedit with your favourite text editor). It will ask for your password so type it. Scroll down to line 38 where you'll find: checkStateChanged; Change that so it looks like this: if [ x$1 != xenforce ]; then checkStateChanged; fi Now save and close gedit. In your terminal window type this: sudo gedit /etc/acpi/resume.sh Scroll down to the last line and add this on a new line so that it is the last line in the file: /etc/acpi/power.sh enforce Save and close gedit. In your terminal window type this: sudo gedit /etc/rc.local Scroll to the end and add this *before* the last line (before the "exit 0" line): # delay to allow acpi-support and gnome to load, in seconds # increase if your laptop is not fast enough sleep 60 && /usr/bin/on_ac_power; if [ "$?" -eq 1 ]; then /etc/acpi/power.sh enforce fi Save and close gedit. Reboot. After these modifications, scripts are called even if you suspend/hibernate on battery and resume on AC and vice-versa, and even if you boot on battery. I don't really understand what msrgi's fix does and how it works, but it works. -- acpi scripts are only called on events https://bugs.launchpad.net/bugs/108611 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs