Just lost my gui about an hour ago, rebooted from command line and gui is dead. tried to restrt gui though CLI and no go, not at home so cant check what on the monitor until later
***edit
restart did not actually happen even though my ssh connection died, i checked uptimne and was back to 3 days so it never went down
trying powerdown command now and nothings happening
****used reboot -n and it went down and came back up so a good sign