I changed my monitor input source selection from Auto to HDMI (which is the only used connector), and this no longer happens. Since I have a workaround, you can close the issue. If someone else will encounter this issue, I can recreate it and try to provide the missing info (which currently requires some work to do, so is not worth it).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1579579 Title: Monitors immediately come out of energy saving mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1579579/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs