connecting 2 monitors

I have recently got a new monitor and haven't had enough desk space to use my old one but now that I do I get no signal from it at all. I've tried hdmi and dp cables, they are secure and work, but still no input. Also went to display settings and tried to detect it but still nothing. I have an...

Hello Everyone. I would like to ask some experts in the upper mentioned architecture, are there any variants of M1 or M2 doesn't matter if laptop or desktop variant, but I would like to connect 2 monitors with 4K resolution with 144Hz refresh rate. Thank you for your answers.

Hello, I have a Ultra Slim Desktop HP 8300 , which has a VGA and 2 Display Port Outlets. I can´t get the Display Port working. Only the VGA is connected to a Display. I wanted to connect a 2.nd Monitor to my PC, however I can´t get it to work. Any Solutions to this problem?