If you can't get X11 or Wayland GUI Linux apps to start anymore on Chrome OS, try the following.
In the Terminal app, this will show the status of your systemd user services/units:
systemctl --user
If [email protected] and [email protected] show a failed status, the following worked for me:
sudo ln -s /opt/google/cros-containers/bin/sommelier.elf /usr/bin/
systemctl --user restart [email protected]
systemctl --user restart [email protected]
export DISPLAY=:0
Check again to see if those services are started now:
systemctl --user
Hopefully now X/Wayland apps work again.
xclock
Thank you very much! This worked.