Need Help With SLI

[LekTiRegor]

I have 2 Gtx 970 in SLI, and I'm trying to use it with 2 monitors. But when I choose "Maximize 3D performance", it only activate one monitor. Am I missing something here?

[Enderman]

Yeah... don't select that option if you want to use more than one monitor...

[Oshino Shinobu]

Have you set up the displays through Windows display settings? 

 

You can also check to see if things are wrong in the "Set up multiple displays" section of Nvidia control panel. 

 

EDIT: Also what do you mean by only one monitor activating? Does one of the monitors just turn off/no signal?

[Oshino Shinobu]

2 minutes ago, Enderman said:

Yeah... don't select that option if you want to use more than one monitor...

That setting should work just fine when using more than one monitor. 

[LekTiRegor]

6 minutes ago, Oshino Shinobu said:

Have you set up the displays through Windows display settings? 

 

You can also check to see if things are wrong in the "Set up multiple displays" section of Nvidia control panel. 

 

7 minutes ago, Enderman said:

Yeah... don't select that option if you want to use more than one monitor...

Does it matter that I'm using a Display port to hdmi adapter for one of the monitor?

[Oshino Shinobu]

Just now, LekTiRegor said:

 

Does it matter that I'm using a Display port to hdmi adapter for one of the monitor?

If the adaptor works normally, it shouldn't matter when using multiple monitors. 

 

So when you change to maximise 3D performance, one of the monitors loses signal?

 

What does the multiple display section of Nvidia control panel look like? You may need to activate the other monitor there. 

[LekTiRegor]

1 minute ago, Oshino Shinobu said:

If the adaptor works normally, it shouldn't matter when using multiple monitors. 

 

So when you change to maximise 3D performance, one of the monitors loses signal?

 

What does the multiple display section of Nvidia control panel look like? You may need to activate the other monitor there. 

Yeah it loses signal and i have to manually reconnect it.

 

Here's the multiple display section

[Oshino Shinobu]

39 minutes ago, LekTiRegor said:

Yeah it loses signal and i have to manually reconnect it.

 

Here's the multiple display section

 

It looks like the monitors should be working fine from that screenshot. Check in Windows display settings as well to see if it's been dropped. 

[Vellinious]

1 hour ago, Enderman said:

Yeah... don't select that option if you want to use more than one monitor...

That setting is fine to use.

[Enderman]

Just now, Vellinious said:

That setting is fine to use.

Clearly it is not if you read what the post says.

[LekTiRegor]

1 hour ago, Oshino Shinobu said:

It looks like the monitors should be working fine from that screenshot. Check in Windows display settings as well to see if it's been dropped. 

I feel like this shouldn't be this hard to set up

[Oshino Shinobu]

3 minutes ago, LekTiRegor said:

I feel like this shouldn't be this hard to set up

 

Everything you've posted looks like it should be working fine. Do the monitors have multiple inputs? If so, try cycling between the inputs to see if it picks the signal up again. 

 

If not, if may well be an issue with the adaptor or the monitor itself. You could try switching the cables so the one that is currently running off HDMI is running off the DP adaptor. 

 

I have a setup with the same output mode over 4 monitors and it all works fine for me. 

 

 

[LekTiRegor]

3 minutes ago, Oshino Shinobu said:

Everything you've posted looks like it should be working fine. Do the monitors have multiple inputs? If so, try cycling between the inputs to see if it picks the signal up again. 

 

If not, if may well be an issue with the adaptor or the monitor itself. You could try switching the cables so the one that is currently running off HDMI is running off the DP adaptor. 

Yeah I switched the cables, but the S24 monitor just won't work when i have SLI enabled, still only one monitor. I guess it's a monitor's problem. Thanks anyway

[Oshino Shinobu]

Just now, LekTiRegor said:

Yeah I switched the cables, but the S24 monitor just won't work when i have SLI enabled, still only one monitor. I guess it's a monitor's problem. Thanks anyway

Have you tried switching over to another Displayport output? It shouldn't make a difference, but you never know. 

[LekTiRegor]

4 minutes ago, Oshino Shinobu said:

Have you tried switching over to another Displayport output? It shouldn't make a difference, but you never know. 

Interesting, the adapter stopped working lol.

[Oshino Shinobu]

9 minutes ago, LekTiRegor said:

Interesting, the adapter stopped working lol.

Maybe the adaptor was on the way out. There should be no reason for a particular monitor to not work with SLI, so I can only think the adaptor was causing issues. 

[LekTiRegor]

Just now, Oshino Shinobu said:

Maybe the adaptor was on the way out. There should be no reason for a particular monitor to not work with SLI, so I can only think the adaptor was causing issues. 

It might just be it. Thanks for the help.

[Vellinious]

24 minutes ago, Enderman said:

-SNIP-

That setting is fine to use with multiple monitors.  There's something else wrong, and it has nothing to do with that setting in the control panel.  Nothin...nada.

Edited March 27, 2017 by W-L

[Enderman]

3 minutes ago, Vellinious said:

That setting is fine to use with multiple monitors.  There's something else wrong, and it has nothing to do with that setting in the control panel.  Nothin...nada.

Again, try reading the topic, which is about his "multitple monitors not working with that setting enabled"

In which case not changing that setting makes them work properly.

[Oshino Shinobu]

5 minutes ago, Enderman said:

Again, try reading the topic, which is about his "multitple monitors not working with that setting enabled"

In which case not changing that setting makes them work properly.

The only way to not use that setting is to either disable SLI or enable surround, which doesn't work with 2 monitors. The setting is basically "enable SLI, but not surround"

 

While disabling SLI may fix the issue, it's not exactly a solution to the issue, or at least not the one OP is looking for. The setting (again, basically enable SLI) should work fine with multiple monitors, so there is an issue somewhere else, which is what we were trying to resolve.

[Vellinious]

4 minutes ago, Enderman said:

Again, try reading the topic, which is about his "multitple monitors not working with that setting enabled"

In which case not changing that setting makes them work properly.

You really can't be this dense....look.  There are two ways to enable SLI.  The way he was trying, and to use surround.  The monitors were working without SLI enabled.  As soon as he enabled SLI, one of the monitors stopped working.  Which has nothing to do with the setting, and apparently, according to his post, has to do with one of his adapters.

I'm going to say this once more, so that even you can understand.  There is absolutely nothing wrong with using that setting for multiple monitors.  FFS, man.  You're wrong....and now you're just making yourself look stupid.

[pas008]

Are they both plugged into same card?

[Oshino Shinobu]

1 minute ago, pas008 said:

Are they both plugged into same card?

They are. The first screenshot shows how the cards are connected in the Nvidia control panel (HDMI for C24 and DP for S24) 

[pas008]

3 minutes ago, Oshino Shinobu said:

They are. The first screenshot shows how the cards are connected in the Nvidia control panel (HDMI for C24 and DP for S24) 

Might need one plugged into other card

I ran into this issue many times on accessory displays But i am running 5 monitors on 2 970s but 3xsurround and 2 accessory