Seeing similar issue here on Intel NUC6i5SYH on Dell U3415Wb monitor on DP connector. Problem happens when manually switching monitor input from NUC Ubuntu 17.10 on DP connector to Mac laptop on HDMI connector on same monitor.
Also cleared my /var/crash folder and submitted two reports using ubuntu-bug after replicating problem (per @vanvugt instructions), one with filename _usr_bin_gnome-shell.1000.crash and another _usr_bin_Xwayland.1000.crash (also don't know where to use bug id) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1721428 Title: Artful (17.10) Session logout after screen turned off Status in GNOME Shell: Unknown Status in Nouveau Xorg driver: New Status in gnome-shell package in Ubuntu: Incomplete Status in mutter package in Ubuntu: Incomplete Bug description: Whenever I turn off my screen, the computer (a desktop PC) logs me out of my session. Here is a discussion thread with users of similar issue: https://ubuntuforums.org/showthread.php?t=2372388&p=13694312&posted=1#post13694312 To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1721428/+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
