I am currently using a MacMini (Late 2014) with a BenQ BL2420PT Monitor. I connect them over a Thunderbolt(the old mini-DisplayPort) to DisplayPort cable.
Both Mac and monitor are 6 Months old and I have used them almost every day. But a week ago the monitor didn't show the Apple logo during boot and this morning the monitor just said "no signal detected" for about half an hour.
I already tried booting into safe mode and into recovery mode, but there is nothing showing up.
Mac and monitor are still working because I am able to connect to the Mac via SSH and connecting the monitor to my Windows laptop (VGA to VGA) still works.
Any help would be appreciated