I've found something that may be useful both for diagnosis and as a workaround.
If you define a "display-setu-script" in the lightdm configuration, like this: [SeatDefaults] display-setup-script=/path/to/display-setup.sh and put this command in the "display-setup.sh": xset dpms 120 125 130 this does NOT fix the problem. But, if you write instead: ( sleep 10 xset dpms 120 125 130 ) & it DOES help, i.e. login screen goes dark after two minutes. Apparently, it implies that "something" that is started as a part of the greeter "session", i.e. the greeter itself, or one of the indicators, resets the DPMS settings. In the meanwhile, my display-setup script may be used as a workaround by those who need it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1245474 Title: [regression] on login screen, monitor stays on forever To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1245474/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
