I have both an LCD attached to HDMI, and an analog board with RGB connected to a Sony PVM.
I will say that very often the core just shows a black screen for me on the HDMI out, but it always works on the RGB monitor.
Black Screen in C64 Core
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Re: Black Screen in C64 Core
I wonder what this core does differently. I had a look at the Verilog but its beyond my current understanding
Re: Black Screen in C64 Core
Did a few more test switching hardware and video modes in the core. Still the same. Tried booting a few .crt's and those sometimes result in the C64 basic screen with random-ish characters around the screen (like in the screenshot). Sometimes something that looks something like a normal C64 loading screen with flashing colors. Sometimes a few SID bleeps and bloops. It's all very random. Just to repeat what i said earlier in the thread: every other core i've tested works just fine.
Re: Black Screen in C64 Core
HOLD IT! Todays (20210509) release suddenly started working. Other people that have had problems with black screen and other weirdness give it a try!