One of the wallpapers has XFCE on it, but I didn't change my desktop environment. Also of note, when I open the terminal it doesn't look the same as it used to. Instead of the dark purple window it's a black window with white text and the window's icon is a red "X" with a dark blue "T" on it.
This is a headless machine and I connect to it through remote-desktop.
If I go through the applications menu (manually clicking, the super key does nothing and my keyboard does not have a "Fn" key) and go to settings I get the window on the left. Changing the settings in this window does nothing. Right clicking the desktop and clicking "desktop settings" I get the window on the right. This window correctly changes the wallpaper.
When I open the home folder I get Thunar.
My guess is there are two desktop environments competing or something right now? How can I fix this?
Also, weirdly, if I click my name in the upper right I can "lock screen" and "log out..." but I can't "switch user," "suspend," or "shut down."
Thank you in advance for any help.
It looks like you are running XFCE instead of GNOME (the normal Ubuntu desktop). I'm not sure how that happened... but you an always just install another desktop.
For instance, you can try to make sure you have the
ubuntu-desktoporubuntu-desktop-minimalmetapackage installed:After that, the login manager should allow you to select the Ubuntu session rather than the XFCE one.
There are different flavours of Ubuntu with the other desktop environments (called Xubuntu, Kubuntu, and so on). The posted screenshot is indeed a mishmash of Gnome and Xfce though.