Windows 10 - External Monitor shows 1|6 and my laptop display is 5 - what is this?

I think I have solved it by removing Hyper-V (came default with Win10 Pro).

I'm running windows 10 on a Lenovo T540p laptop and had as many as 7 displays showing up at one time. I ended up removing Hyper-V due to something else (Xamarin development), and noticed my screen blinking once. And this fixed it :)

After this I could both open Intel HD Graphics Control Panel, and install updated drivers. Didn't even need a reboot.

I also had this exact problem. It is for sure related to the Intel drivers. I have a Dell M3800 and went and downloaded the drivers from Dell (they are much older) but it worked. I made sure to rollback, select specific drivers and installed by pointing to the extracted files.

EDIT More detailed steps (my problem came back after an update so I wanted to write more about it): Download https://downloads.dell.com/FOLDER03173279M/1/M3800_Video_Driver_7C6X2_WN32_10.18.15.4248_A00.EXE Run it and extract it to C:\dell, you may need to install it too

Open device manager

Update driver

Open Properties of the Intel 4600

Click Update Driver

Select Browse my computer

Select Let me pick from a list of device drivers

Select the older version, 4248

I had a very similar issue, where I had my laptop connected to just one external monitor, making it 2 monitors in total. At a certain time, the external display was mirrored instead of extended, like it always was and in the display settings there were in total 6 displays showing. After checking, I realised that there was a Intel Display driver update on the windows update history, around the same time.

So I:

• Went to the device manager;
• Searched and selected the Intel graphics card, under 'Display Adapters';
• Clicked on 'Properties' on the context menu and selected the 'Driver' tab on the pop-up window;
• Selected the option for 'Roll back Driver...', clicked yes when prompted;
• And after a mandatory reboot, issue got solved.