crwdns2934241:0crwdne2934241:0 julian.r.berlin
crwdns2934249:0crwdne2934249:0:
the grey/black screen with the pointer is because the login screen is located in the display of your mac, you should try to reset your NVRAM/PRAM : https://support.apple.com/en-us/HT204063 Then you will able to login since mirroring is the default option, good luck
crwdns2915684:0crwdne2915684:0:
open