hey guys I hope you can help me fix my problem. I reinstalled my High Sierra because my Windows Dual Boot crushed it. After removing my GT120 to use my Sapphire 580 Nitro I no longer get a Signal via Display Port. HDMI works fine. DisplayPort Adapter to HDMI works too. Only a direct connection via DisplayPort doesn’t work. I use a LG 21:9 FreeSync Display for gaming so I really need this Display Port connection.