But I was unable to reproduce it.
You should first check the Xorg logs for any graphics driver issues.Then, if there are no Xorg issues, you should look for cinnamon-related errors.
Did you add extensions or applets (in Cinnamon), or does the problem occur on a clean installation? When there's no graphics driver issue, the most common problem I've seen is caused by added/activated applets or extensions.
If you don't know how to act on a black screen for any checks you can use a remote access (for example ssh) or from a tty, for example with ctrl+alt+F1
Some useful logs are for example: /var/log/Xorg.0.log journalctl -b | grep -i cinnamon ~/.xsession-errors journalctl -b -p err
OpenPGP_signature.asc
Description: OpenPGP digital signature
