All display managers fail to load and X can't start a server

[Fabby]

1. Congrats on solving your own problem and sharing with the community!
2. Next time, please mark a solution like this:
   
   so that the next person that has the exact same problem you just had will benefit from your post as well as your question will now be in the “solved” status.
3. You might be interested in this:

[HowTo] make a crash-proof backup in Manjaro for your entire system

Difficulty: ★★☆☆☆ If you follow the tutorial completely, you will be able to create a backup of your entire system not only limited to Manjaro, but also including Windows, RHEL, Ubuntu, … and whatever else you might have installed on your system! Even if you replace your HDD by an SSD, your HDD crashes, your entire system gets stolen, … you can always restore a Cold System backup to an identical system (You cannot restore E.G. a Dell XPS onto a Dell PowerEdge and then expect that to…