I have the exact same issue in the exact same way, been struggling to make it work and it simply does not. It did work in previous xubuntu versions, but not 18.10, something broke it.
Essentially, if you watch the machine boot up, you will see the second monitor initially shows some stuff, then, it eventually goes not blank but some light color, CJS called it light gray, lets go with that. It does not respond, I cannot send anything to that display. nvidia control panel shows both screens set up as shown by the OP. The control panel shows the second display as :0.1, and, if I for example DISPLAY=:0.1 thunar, it displays on display 0.0 If you shut the machine down, the formerly inactive second display comes to life and shows the shutdown process. If you remove the double screen portion of xorg.conf and use a single screen, it works fine. But that's not what is desired here. If there is any info I can provide, please let me know. Like CJS, this is very bad for me. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1822181 Title: Ubuntu 18.10 broke dual-screen dual-desktop configuration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xfwm4/+bug/1822181/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
