A few days ago, I bought a Beelink SER5 MAX Mini PC with AMD Ryzen 7 6800U from Amazon and tried to connect two monitors, but it’s not working. I connected them to the HDMI and DisplayPort at the back, but only the HDMI displays a screen. The DisplayPort doesn’t connect at all. Even when I try to detect another monitor, it says it can’t find one. What should I do?