GTX 1080Ti SLI - One 4k monitor, 2 1080p monitors

[jwsargent]

I am looking for a way to use my two 1080p monitors while gaming on my 4K monitor, however I am having issues making them all work with 2x SLI when using GTX 1080Ti cards. No matter what connection configuration I use between the two cards I can only get a maximum of one 1080p display to work.

I am using the latest drivers, Windows 10 Pro x64 with latest updates, etc. The cards are MSI Gaming X if that is relevant.

My optimal setup would be:

GPU 1:

• 
  Displayport -> 4K monitor
  HDMI -> HTC Vive

GPU 2:

• 
  HDMI -> 1080p monitor
  HDMI -> 1080p monitor

Any thoughts or ideas on what I could check or issues with this setup are welcome. If there is a way to do this I'd really appreciate it.

 

[King Dranzer]

Try connecting one 1080p monitor to GPU 1.

 

[jwsargent]

Try connecting one 1080p monitor to GPU 1.

I have tried all configurations of the different displays, as I said I can only get one 1080p to work with my 4K monitor. All the monitors work fine if I disable SLI

 

[King Dranzer]

Remove the HTC Vive and connect all monitors to GPU 1 and check if it works.

 

[jwsargent]

Remove the HTC Vive and connect all monitors to GPU 1 and check if it works.

I don't think you understand, the only time I can get more than my 4K monitor to work is with just 1 1080p monitor plugged in GPU 1, without any other display units including the VIVE. As soon as I plug in one more 1080p display (identical to the first) then they both go black and stay that way.

 

[King Dranzer]

Re-install or upgrade to latest NVIDIA drivers. Hope it solves the problem.

 

[jwsargent]

Here are some details on my specific situation and how I solved this issue:

For starters, I am using the BenQ GW Series GW2265HM monitors for my 1080p displays. These particular monitors like some other ones like it require a DVI connection to initialize, however after initializing I was able to switch to HDMI after initialization, which I did. However when I switched from non-SLI to SLI it would need to re-initialize, and there would be no DVI connection.

What I did to solve this, is I purchased two HDMI -> DVI cables, so now I can utilize the secondary GPU's HDMI ports, and the screens initialize as I switch between SLI and non-SLI.

Super happy it was such a simple fix.