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144 Hz monitor and LGP Lite Capture Card?

Tags:
  • Graphics
  • DVI
  • Monitors
  • Display
  • AMD
Last response: in Graphics & Displays
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October 6, 2014 8:03:28 AM

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.

More about : 144 monitor lgp lite capture card

a b C Monitor
a b À AMD
October 6, 2014 8:07:36 AM

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
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a c 149 C Monitor
a c 152 À AMD
October 6, 2014 8:09:00 AM

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.
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October 6, 2014 8:19:26 AM

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?
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a b C Monitor
a b À AMD
October 6, 2014 8:23:28 AM

feefeffe said:
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?


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.
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a c 149 C Monitor
a c 152 À AMD
October 6, 2014 8:27:10 AM

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 -

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October 6, 2014 8:33:48 AM

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-Mal...

Or I buy those two items:
http://www.ebay.com/itm/ATI-Eyefinity-Active-DisplayPor...

http://www.ebay.com/itm/DVI-Male-to-HDMI-Female-M-F-Ada...

Am I right?
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a c 149 C Monitor
a c 152 À AMD
October 6, 2014 8:38:33 AM

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-DisplayPor...

And use a DVI-DVI cable to go from the adapter to the monitor.
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October 6, 2014 8:55:23 AM

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
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a c 149 C Monitor
a c 152 À AMD
October 6, 2014 8:57:22 AM

yes, that will work.

With the DP to HDMI, the monitor will be @ 60Hz.
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October 6, 2014 11:24:41 AM

Will I get the sound through the DP->HDMI connection?
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a c 149 C Monitor
a c 152 À AMD
October 6, 2014 11:26:25 AM

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.
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October 6, 2014 11:37:21 AM

It's not connected to a monitor, it's connected to the capture card.
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a c 149 C Monitor
a c 152 À AMD
October 6, 2014 11:39:16 AM

understood, yes, The DP/HDMI will carry sound.
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October 6, 2014 11:48:26 AM

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...
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a c 149 C Monitor
a c 152 À AMD
October 6, 2014 11:59:00 AM

use the headphone out on the capture card and plug the other 3.5mm jack into your PC mic input.
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October 6, 2014 12:03:08 PM

Oh, I see. Thanks!
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a c 149 C Monitor
a c 152 À AMD
October 6, 2014 9:10:10 PM

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 :) 
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October 6, 2014 10:20:44 PM

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.
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a c 149 C Monitor
a c 152 À AMD
October 7, 2014 5:49:08 AM

Please elaborate on what you have done. it sounds to me you have a lot of cables doing lots of things.
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October 7, 2014 5:51:34 AM

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...
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a c 149 C Monitor
a c 152 À AMD
October 7, 2014 5:54:10 AM

I did say active, could you link up the exact model?
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October 7, 2014 5:58:50 AM

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
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a c 149 C Monitor
a c 152 À AMD
October 7, 2014 6:05:07 AM

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?
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October 7, 2014 6:18:06 AM

Yes, the capture card is being recognized but I can't get my graphics card to send a signal to it.
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a c 149 C Monitor
a c 152 À AMD
October 7, 2014 6:25:35 AM

I am of slight confusion and should have asked this before, how come your now just using HDMI-HDMI?

The adapter sounds to be passive. No matter what, DP to HDMI adapters work when active.
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October 7, 2014 6:29:53 AM

I can connect the capture card by using HDMI-HDMI but it will not work since my GPU doesn't seem to support three monitors/devices at the same time without using one active adapter...
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a c 149 C Monitor
a c 152 À AMD
October 7, 2014 6:33:47 AM

Understood. Now, I would get an active adapter (DP-DVI) and use it for one of the monitors, then use the HDMI-HDMI for the card (most logical solution, I also do not place bets that the capture card likes being used with adapters). I would advise you return that adapter, does not sound to be active. Buy a certified active adapter from the internet.
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October 7, 2014 7:02:26 AM

My monitors are DVI so I would like to use the two DVI ports on my GPU for my two monitors, and then an active DP->HDMI adapter for the capture card. I mean it's a digital signal and I've seen other people use the capture card with adapters before.
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a c 149 C Monitor
a c 152 À AMD
October 7, 2014 8:49:07 AM

That's perfectly fine. Make sure you check it is active and reviews state it is, on your next purchase. An Adapter should work fine, I just hope the next one you get works (it has to, there is nothing wrong with the configuration).
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October 11, 2014 6:49:42 AM

Before I buy an active DP->HDMI adapter, are you sure it will work without limiting my main monitor (144 Hz) to 60 Hz?
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