This is totally happening for me since a long while now. It was there in 17.x , it is there in 18.04 beta. No matter if we use KDE or Cinnamon. No matter if we use noveau or NVIDIA drivers.
I have 2 monitors for my desktop, a big one in front and a smaller one on the left. The big one is supposed to be the main desktop screen. Once the screen saver timer kicks in to turn off the monitors, the big one never comes back to life after entering the password (can only enter it on the secondary-left side monitor). The big one stays without any image, it even says there is no signal when turned on/off. Have to reboot to fix it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1573345 Title: Dual monitor loses settings after screen sleep To manage notifications about this bug go to: https://bugs.launchpad.net/kscreen/+bug/1573345/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs