I have a Toshiba Tecra A50-C-U3E1 (yes I know...) with integrated Intel HD Graphics 520 GPU.
The laptop has external VGA and HDMI (supporting 1080p format apparently) ports and I am currently using one external monitor (HP ProDisplay P202) with a VGA-VGA cable. This is working with the laptop LCD with no issue at all.
I am now trying to connect a second external screen (P202) using the laptops HDMI port. The only cable I have available is HDMI-DP (The monitor only has VGA or DP), but when I plug in and open up the Windows screen properties, the system can detect the screen but cannot send a signal. The screen will scan both ports and the go into sleep mode.
I have tried a second HDMI-DP cable with the same results. I know the HD 520 will support three screens as I have checked the Intel website.
Does anyone have any ideas why this is not working?
Thanks in advance.