When my close my laptop it goes into suspend mode. After opening my laptop my screen stays black. I have to shut my laptop down, turn it on again and when I log in then my desktop does not boot. I have to restart it gracefully, after that it works again. How can I diagnose the issue? It seems to be an issue with pantheon-greeter.
I've managed to workaround this by changing the behaviour to sleep mode for now.
i3 4030u HD4000