I installed Ubuntu 17.10.1 today on my laptop, and got the same problem. Opened settings and moved the dock to the bottom, and the settings window just disappeared. The answer given in the following link helped me to disable the second virtual monitor from the command line, and restored the settings window back to my normal laptop screen view:
Link: https://askubuntu.com/questions/366813/disable-second-non- existent-screen-from-command-line Of course, this second monitor may come up again when you restart your machine, so it would be a good option to follow the latter part of the answer in above link, and put the command in a script which you can schedule to run at startup. This is a workaround though, and this not the proper fix, which hopefully may come in a future update/patch. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1721637 Title: can't open system settings(Ubuntu 17.10), icon is visible but settings don't dislay Status in gnome-control-center package in Ubuntu: Incomplete Bug description: When i click on system settings, icon is displaying but settings window doesn't visible. I have already reinstalled ubuntu desktop and gnome-control-center, but without any success.(reboot also didn't help).If i try to open gnome-control-center in terminal the same result only icon appearce To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1721637/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp