Michael Heuberger, as per your Bug Description your Power Management is off. Hence, was it already off when you ran the command, or was it on, you ran the command, and then it was turned off?
I also get the same message as per the Bug Description if the Power Management is already off when I attempt to run the command. ** Tags added: latest-bios-0803 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1394163 Title: Unable to turn powersave for wlan0 off To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1394163/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs