Ubuntu 16.04 LTS
NVIDIA 376 drivers
GT 710 2GB video card
HP MicroTower 6000 pro

I am running dual monitors flawlessly using both the VGA and HDMI ports. I would like to add a third monitor. When connecting my third monitor to the dvi-d port w/ my active dvi to vga adapter, my monitor is not detected and screen is black. Not only does my 3rd monitor say no signal but it causes one of my other working monitors to go black and no signal.

I have reinstalled the nvidia drivers. I though maybe it was a connection issue, which is why i am using a active adapter. Is there a way for me to setup this up manually? I know i am missing a configuration step here but would be greatfull for some guidance.

thank you in advance.

Hi, Welcome to Linux Questions!

The GT 710 video card has a DVI-D port which supports digital signals only, not analogue.

A DVI-I port supports both digital and analogue and will work with an active DVI to VGA adapter where DVI-D wont. (I think the clue is in the "D" = digital )

You need to connect the DVI-D port on the card to a monitor with a DVI port. i.e. NOT the VGA port.

Hope that helps,

Play Bonny!

Are you sure your card has VGA ports? Those are 15-pin d-sub connectors.

@ AwsomeMachine:

See my link above, spec states:Play Bonny!

Try a different kernel. I've got 3 monitors and when I had xubuntu 14.04.5, it came with kernel 4.4.0, (IIRC) and wouldn't light up all 3 monitors. I tried kernel 4.5.0 and 4.6.0 and finally kernel 4.3.0 did the trick.