Traceback (most recent call last):
  File "/usr/lib/system76-driver/system76-firmware-dialog", line 566, in <module>
    send_notification(data)
  File "/usr/lib/system76-driver/system76-firmware-dialog", line 545, in send_notification
    notification.show()
GLib.GError: g-io-error-quark: Could not connect: Connection refused (39)