I have recently upgraded my ArchLinux and Gnome3 got broken. On boot, GDM shows up (and works), however, when trying to log in Gnome3 session, I recieve "Oh no! Something has gone wrong." screen.
Other sessions (i3-wm) work well. Where could I get more useful information about what actually causes the problem? I tried to google where are the gnome3 log files are, but I was not successful.