I've been using a second monitor with my laptop (running WIN 8.1) for a good long while now. When Win 10 home became available on July 29th, 2015, I upgraded. At first, I had no problems connecting my second monitor and using it instead of my laptop screen. But once I shut down my computer (for the first time after the full win10 install), upon starting up again, Windows could no longer detect my monitor through HDMI.
I had changed nothing with the cables or settings on either the monitor or in windows. OS: Windows 10 Home Machine: HP Envy dv7 (built for Win 8) Monitor: Debranded HP 23' something or other. Display Adapter: Intel HD Graphics 4000 Like I said, before the upgrade and the first shutdown, the external display worked just fine. Linksys Etherfast 10 100 Lan Card Driver Windows 7 on this page. Now, when I go to Settings >System >Display and click 'Detect', it tells me 'Didn't detect another display.'
I checked to see if my display driver needed to be updated or could be rolled back, but neither were options. Hi, Thank you for posting on Microsoft Community.
I understand the inconvenience you faced. I will certainly help you with this. Ati Radeon X1200 Series Windows 10 Driver. I suggest you to connect second display using DVI port or other VGA port available on your PC and check if the second display works. If second display works in other port, then the possible cause for this issue may be discrete video card driver. I suggest you to follow the below given methods.