The bug report at kernel.org brought me to the insight, that this is a user space problem.
Let me cite: "Kernel is not responsible for such strategy problems. Usually, acpid catches the Lid event and set the platform to sleep when the lid is closed. you can also write such a script to catch the dock event, and then suspend the system when lid is closed" So the question is: What is the expected behaviour in Ubuntu? ** Package changed: linux (Ubuntu) => acpid (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/989635 Title: Laptop doesn't go to sleep when undocking To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/acpid/+bug/989635/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
