I have a lenovo P480 for work and I am trying to connect 3 monitors to it. 2 monitors to display port on the USB C dock, 1 monitor to HDMI on the laptop, and the laptop lid is closed.
The HDMI screen only picks up data and displays when there are no display ports plugged in. Once I plug in a display port, HDMI screen says no signal. Windows and Intel Graphics can't detect that HDMI monitor once the Display ports are connected.
The laptop is using Intel UHD 620 with 300 MHz 4096x2304@60Hz. The problem is even when I only have a display port and an hdmi screen plugged in with the laptop lid closed, it still only picks up the display port.
Any idea what's going wrong here?