I had an MSI GTX 1060 on my computer and I recently purchased a Zotac RTX 2060. After I installed the graphics card and connected all cables and using hdmi, it showed no signal detected on my monitor.
So I decided to connect the display to the motherboard and it also showed no display. I also reinstalled my GTX 1060 back into my computer (as theoretically it should be normal as before) and the same problem occurred. I tried using my TV and the same thing happened. Used hdmi, dvi, and vga connectors and those didn't help.
Monitor : BenQ XL2411
CPU : AMD Ryzen 5 3600
Motherboard : MSI B450M Pro-vdh plus
RAM : KLEVV DDR4 2x4GB
PSU : Raidmax 500W 80+ bronze
So I decided to connect the display to the motherboard and it also showed no display. I also reinstalled my GTX 1060 back into my computer (as theoretically it should be normal as before) and the same problem occurred. I tried using my TV and the same thing happened. Used hdmi, dvi, and vga connectors and those didn't help.
Monitor : BenQ XL2411
CPU : AMD Ryzen 5 3600
Motherboard : MSI B450M Pro-vdh plus
RAM : KLEVV DDR4 2x4GB
PSU : Raidmax 500W 80+ bronze