Steve, glad to see that there is someone else with this problem, but sorry that you are also experiencing the difficulties.
Like Steve, I tried using Xinerama and was able to get the single desktop to span the two monitors, but starting a second desktop, as desired, does not work. This is why I identified the window manager as a possible locus of the problem. If someone thinks it relates to a different package, please make the necessary change. I have upgraded Xubuntu many times up through 18.04 and had no problem. There is definitely something significant that changed in 18.10 that caused this problem. From the outside it is difficult to determine where to point the finger as to what may be the source of the problem. That is why I was hoping that a variety of people working on the core components affecting this could look into it. I tried to provide as much configuration and diagnostics information as I could in order to allow someone with a test setup to add a second monitor and configure it for dual independent desktops and see what results you get. As I said before, this configuration should be part of the standard testing before any release, and well documented. BTW, I've also been (long ago) in discussions with the Nvidia people and they/I don't think it has anything to do with their driver. I tried a number of different Nvidia driver packages as well as the Xorg version, and nothing made any difference. I will upgrade and test with 19.04 when released (what have I got to lose) but this machine is my live work system and I really cannot screw with it too much as a test bed. And like Steve, I'll happily provide any additional info I can, upon request. -- 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
