I solved the problem checking "Activate screensaver when computer is idle". This seems strange that disabling screensaver leads to disabling power management (at least it prevents switching monitor into sleep mode). Could you at least add a message box saying that it will lead to such results?
-- Power manager puts monitor into sleep only once https://bugs.launchpad.net/bugs/158927 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
