Dual monitors - DP input best conversion method.

[Amith]

Hi,

 

A friend of mine is purchasing two Asus 27" PG278Q G-Sync 144Hz Monitors (Res: 1440) (Info here).

He has the same GPUs as me, 2x Gigabyte GTX 780ti (Ghz edn)

 

He he aiming to run the two monitors in extended mode.

 

The issues:

1. Each monitor only has one input (1x DP).
2. Restricted to using one GPU for output per SLI group.

3. Each GPU only has one DisplayPort (Is is correct to say 'A DisplayPort port' or is the second 'port' deemed redundant? :huh: )

4. (Potential issue) 2560 x 1440 resolution per monitor.

The two solutions I can see are:
1. DP splitter; or

2. DP -> Primary monitor and DVI -> DP converter for secondary monitor.

 

It seems, prima facie, that option two would be preferable as the primary monitor would not be subject to any restrictions or limitations.

Would you agree that this is the best solution?

 

Any help is appreciated, especially if I have overlooked something.

Cheers.

[Guest]

A splitter should do the trick.

[MrMineHeads]

With Eyefinity, it may have been better, but a normal DP spilter will do the trick.

[Boink]

The splitter would work better as without it, one of the monitors would not work with g-sync. 

A single displayport can run 2 1440p monitors at ~65Hz

 

But, if he only planning on gaming with one of them, I would recommend using the DVI connector for the one he isn't gaming on, allowing his primary monitor to run near its maximum refresh rate.

[BrinkGG]

The splitter would work better as without it, one of the monitors would not work with g-sync. 

A single displayport can run 2 1440p monitors at ~65Hz

 

But, if he only planning on gaming with one of them, I would recommend using the DVI connector for the one he isn't gaming on, allowing his primary monitor to run near its maximum refresh rate.

^This^

[Glenwing]

The splitter would work better as without it, one of the monitors would not work with g-sync. 

A single displayport can run 2 1440p monitors at ~65Hz

 

But, if he only planning on gaming with one of them, I would recommend using the DVI connector for the one he isn't gaming on, allowing his primary monitor to run near its maximum refresh rate.

You can't. The monitor only has DisplayPort inputs, nothing else.

Use a multi-stream transport hub, which is what a DisplayPort splitter is technically called when you are looking for one

And, I usually say "DisplayPort output" to avoid the whole "port" thing

[Boink]

You can't. The monitor only has DisplayPort inputs, nothing else.

Use a multi-stream transport hub, which is what a DisplayPort splitter is technically called when you are looking for one

And, I usually say "DisplayPort output" to avoid the whole "port" thing

I probably should have phrased that better, what I meant was use the DVI port on the graphics card through a DVI to DP adapter.

[Glenwing]

I probably should have phrased that better, what I meant was use the DVI port on the graphics card through a DVI to DP adapter.

DP to DVI adapter cables are for DisplayPort output to DVI on the monitor. It can't be adapted in the reverse direction.

[Amith]

Use a multi-stream transport hub, which is what a DisplayPort splitter is technically called when you are looking for one

 

No wonder I was struggling to find a 'DisplayPort splitter'. :lol:

 

 

Are you able to recommend a decent one?

 

Also, after having a quick look, none of the MST hubs I saw explicitly mentioned refresh rates greater than 60hz (either at all or at 1440p); is this an unreasonable expectation from a single 'DisplayPort output'?  

 

 

 

DP to DVI adapter cables are for DisplayPort output to DVI on the monitor. It can't be adapted in the reverse direction.

 

Thanks for pointing out that my solution #2, above, will not work.

 

 

 

And, I usually say "DisplayPort output" to avoid the whole "port" thing

 

This reminds me of the classic story of an owner of a Fish and Chips shop ordering a new sign. The sign arrives but it reads, 'FishandChips'. The owner says, 'There needs to be more space between Fish and and and and and Chips.'

[Glenwing]

No wonder I was struggling to find a 'DisplayPort splitter'. :lol:

Are you able to recommend a decent one?

Also, after having a quick look, none of the MST hubs I saw explicitly mentioned refresh rates greater than 60hz (either at all or at 1440p); is this an unreasonable expectation from a single 'DisplayPort output'?  

Thanks for pointing out that my solution #2, above, will not work.

This reminds me of the classic story of an owner of a Fish and Chips shop ordering a new sign. The sign arrives but it reads, 'FishandChips'. The owner says, 'There needs to be more space between Fish and and and and and Chips.'

I haven't used any hubs personally, so I can't recommend any.

As far as I know you should be able to do anything that DisplayPort supports through an MST hub. The capabilities go up to 4x 1080p 60Hz, 2x 1080p 144Hz, 2x 1440p 60Hz, 1x 1440p 144Hz, or 1x 2160p 60Hz. Any of those configurations should work through a hub.

[Amith]

I haven't used any hubs personally, so I can't recommend any.

As far as I know you should be able to do anything that DisplayPort supports through an MST hub. The capabilities go up to 4x 1080p 60Hz, 2x 1080p 144Hz, 2x 1440p 60Hz, 1x 1440p 144Hz, or 1x 2160p 60Hz. Any of those configurations should work through a hub.

 

 

Many thanks for your help, it's much appreciated.