144 Hz monitor and LGP Lite Capture Card?

feefeffe · Oct 6, 2014

Hey, I have an AMD 280X and I have a 144 Hz monitor connected to it through DVI. I also have a capture card connected to it with HDMI.

I am duplicating the signal from the GPU to the monitor/capture card but it seems like I cannot get my 144 Hz to display in anything else than 60 Hz. If I change the main display to 144 Hz, it will run in 144 Hz but the resolution will be completely fucked up.

ingtar33 · Oct 6, 2014

if your duplicating the signal then your capture card is limited to 60fps. this is why your monitor is locked at 60fps. you can verify it by unplugging the capture device. you should be back up to 144fps

unknownofprob · Oct 6, 2014

HDMI does not support 144hz, neither 120hz. I also doubt your capture card can utilise that refresh rate.

HDMI cords will not support these refresh rates until 1.4b starts to get used.

feefeffe · Oct 6, 2014

I see. I have a few other questions: Currently I run two monitors from the GPU, both using DVI and the monitors are extended. One monitor is 60 Hz and the other one 144 Hz. Everything works good. But if I add a third monitor through the HDMI port it won't work. Windows will detect all three monitors, but I will only be able to use two.

So how do I solve this? Do I buy a DVI->HDMI converter that I use for the capture card and then a HDMI->DVI converter for the 60 Hz monitor? Or should I buy a DVI->DVIx2 splitter and run the 144 Hz monitor and the capture card from them? Then I will need a DVI dual link splitter?

ingtar33 · Oct 6, 2014

feefeffe :

the problem is the r9-280x... amd gpus can only support 2 digital connections at the same time (only the vga connection, if your card has one, is considered analog)... to get more digital connections you need to utilize the mini displayport plugs and use an active displayport adaptor, then you can expand your number of monitors beyond 2.

unknownofprob · Oct 6, 2014

Display Port tends to be required in triple monitor setups for the third monitor to be used, a common thing with AMD cards.

In order for it to work, you need to use an active adapter DP to DVI cable, not just any DP to DVI cable because they don't work. You need one just like this one -

feefeffe · Oct 6, 2014

So I guess DisplayPort supports 144 Hz? So I will need an active DP->DVI and a DVI->HDMI adapter? Can't I just buy an active DP->HDMI? I assume that the DP->HDMI adapter converts the signal from 144 Hz to 60 Hz?

So either I buy:
http://www.ebay.com/itm/DP-DisplayPort-Display-Port-Male-to-HDMI-Female-Active-Adapter-Converter-for-PC-/131179890623?pt=AU_CablesConnectors&hash=item1e8aee47bf

Or I buy those two items:
http://www.ebay.com/itm/ATI-Eyefinity-Active-DisplayPort-DP-to-DVI-Adapter-Multiple-Screen-/201129504213?pt=AU_CablesConnectors&hash=item2ed440add5

http://www.ebay.com/itm/DVI-Male-to-HDMI-Female-M-F-Adapter-Gold-Plated-Converter-For-HDTV-/160842546200?pt=US_Video_Cables_Adapters&hash=item2572f67c18

Am I right?

unknownofprob · Oct 6, 2014

yes, display ports support 144hz. DP to HDMI doesn't support 144Hz, as I stated before. Yes, the adapters convert the signals and with HDMI, the refresh rates.

Just buy this one -

http://www.ebay.com/itm/ATI-Eyefinity-Active-DisplayPort-DP-to-DVI-Adapter-Multiple-Screen-/201129504213?pt=AU_CablesConnectors&hash=item2ed440add5

And use a DVI-DVI cable to go from the adapter to the monitor.

feefeffe · Oct 6, 2014

I'm going to show everything in a picture to make it easier to explain and understand:

Will this work? http://i.imgur.com/xgV4ZhP.png

unknownofprob · Oct 6, 2014

yes, that will work.

With the DP to HDMI, the monitor will be @ 60Hz.

feefeffe · Oct 6, 2014

Will I get the sound through the DP->HDMI connection?

unknownofprob · Oct 6, 2014

yes, but the monitor input needs to support it. If it has a mic in you need to use that as some monitors have separate audio inputs.

feefeffe · Oct 6, 2014

It's not connected to a monitor, it's connected to the capture card.

unknownofprob · Oct 6, 2014

understood, yes, The DP/HDMI will carry sound.

feefeffe · Oct 6, 2014

Ok, great. I have a two PC setup and the capture card is sending the captured video/sound to the second PC. But I also want to send my microphone's sound to the second PC. How do I do that? I guess I could do it over LAN by joining a teamspeak server on both PCs...

unknownofprob · Oct 6, 2014

use the headphone out on the capture card and plug the other 3.5mm jack into your PC mic input.

feefeffe · Oct 6, 2014

Oh, I see. Thanks!

unknownofprob · Oct 7, 2014

no problem, glad to have helped. Make sure at the end of every thread you select best answer to clarify to users your issue is solved

feefeffe · Oct 7, 2014

Yep, I will leave this thread open until I have gotten this problem fixed. I'm going to go to the store and check for a DP->HDMI adapter today.

feefeffe · Oct 7, 2014

Of course this is not working.

This is what it looks like: http://i.imgur.com/DFur28s.png

This is the adapter: http://imgur.com/Xk2YCGw,dSoOB22#0

unknownofprob · Oct 7, 2014

Please elaborate on what you have done. it sounds to me you have a lot of cables doing lots of things.

feefeffe · Oct 7, 2014

This is the connections, but the "Capture Card" is currently a monitor with HDMI input. Just for testing purposes.

http://i.imgur.com/xgV4ZhP.png

I'm afraid that the damn adapter I bought is passive. But I expected an adapter for 19€ to be active...

unknownofprob · Oct 7, 2014

I did say active, could you link up the exact model?

feefeffe · Oct 7, 2014

Yes, I know you did say that I needed an active adapter, but 70% of the computer stores I was visiting had no clue what a DisplayPort was, so I was kind of pissed off because I had to run around the whole town before I found a store who knew what a DisplayPort was.

Anyway, this is the one I have (DP-HDMI13 Deltaco): http://www.deltaco.se/support/infose/dp-hdmi13-k.pdf

unknownofprob · Oct 7, 2014

I can't see anywhere on the site that's it's active, this could be a problem.

So the capture card is not being recognised at all?

144 Hz monitor and LGP Lite Capture Card?

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