Dell Precision M6700 does not duplicate/extend the screen

I have two M6700 with Windows10-64bit and they have Quadro K3000M graphics card.

They are not duplicating the screen to LCD TV or projector. Both of them have same issue. I tried to disable Nvidia Optimus from Bios but same. Windows, Nvidia drivers, Intel Graphics drivers and bios are all up to date.

Anyone can duplicate or extend?

Regards,

 

I've used the HDMI port on my M6700 to connect an external display and never had any trouble duplicating or extending to get both the internal display and TV display working together, with the NVIDIA K5000M. It's been quite a while since I tried it, I'll try to remember to give it a try tonight and see if anything has changed with more recent BIOS/drivers.

 

What steps are you taking to extend/duplicate the display?

 

I have K3000M on my two M6700. Both of them are same. Not duplicating. Nvidia drivers and Windows 10 is up to date. Funny.

 

I just had an occasion to try this and I can confirm that you cannot "duplicate" the screen. I only tried it with Optimus enabled (Quadro M5000M); it makes sense that it doesn't work in this case since the screens are connected to two different GPUs. However, I am 100% sure that it used to work under Windows 8 with the K5000M.