One difference between artful and bionic is that bionic has libglvnd0 installed (and libegl1 depends on it, so I can't really remove it). Artful doesn't have it installed. I read in one bug report (for Arch or Fedora? I can't find it now) with similar symptoms (ie no wayland session) that libglvnd was causing problems. Could this issue be related to libglvnd0?
One difference between artful and bionic is that bionic has libglvnd0 installed (and libegl1 depends on it, so I can't really remove it). Artful doesn't have it installed. I read in one bug report (for Arch or Fedora? I can't find it now) with similar symptoms (ie no wayland session) that libglvnd was causing problems. Could this issue be related to libglvnd0?