Comment # 3 on bug 1046317 from Martin Vidner

This is y2controlcenter ( https://github.com/yast/yast-control-center ) which
is not able to open the X display, so it aborts.

Yes, it could use a more gracious way of exiting.
But this seems like *no* X application is able to run (Invalid
MIT-MAGIC-COOKIE-1).