Similar as here. I have the signal from HDMI but DDM (Dell Display Manager) does not recognize it. An expensive monitor and cannot be used with DDM. 3 years ago I bought an expensive notebook, issues everywhere poor assistance and a lot wasting of time. Just give away US1.900,00 for US100,00 just to never see that xxx notebook again. With a monitor, I thought it was be different. Probably will be the last product from Dell. I had a brand new Lenovo ThinkPad T490 32GB RAM Developer. All over again, poor software and functionality.