Reddit mentions of Cable Matters Active DisplayPort to HDMI Adapter (Active DP to HDMI Adapter) Supporting Eyefinity Technology and 4K Resolution

It depends on the connection, you occasionally need an 'active' adapter like this one which I had to purchase to hook a desktop I own up to my TV.

I don't think they make 'active' cables, do they?

Buy one of these

https://www.amazon.com/gp/product/B00EDT0072/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

This is the extension cables I use

https://www.amazon.com/gp/product/B01D5H90L4/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B00NH134L6/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1

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Lastly, if you still have issues with 90hz even after buying the HDMI adapter then its probably also a power issue and you will need one of these

https://www.amazon.com/gp/product/B00FPIMJEW/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

I don't know anything about the GTX 1070 limits. However, I do use a 4k TV w/HDR as my monitor along with the Oculus. My 1080ti only has the one HDMI so I bought this:

https://www.amazon.com/gp/product/B00EDT0072/ref=oh_aui_detailpage_o04_s01?ie=UTF8&psc=1

Is your adapter active or passive? I wasn't sure if passive would work so I went with the active one.

My Oculus is plugged into my HDMI and this adapter is used for my TV/monitor. One thing I found out is that DisplayPort is VERY limited when it comes to cord length. Anything longer than 16 feet was pretty much unusable for me. Even with my current 16 ft cord, my TV still goes black for a few seconds one or two times a day. Longer than 16 feet and I got black screen pretty much all the time.

I was thinking about trying the adapter on my Oculus (it has a 12 ft cord) but I haven't tested it yet. Let us know if you get yours working.

In theory making sure it supports 1080p @ 75hz is a bandwidth issue, so you need to get an adapter that claims it supports 4k30 or 4k60, since 4k30 uses roughly the same bandwidth as 1080p120. Even better is to find an adapter that claims 1080p @ 120hz support explicitly.

Maybe one of these:

https://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072/

https://www.amazon.com/CAC-1080-DisplayPort-Adapter-displays-4096x2160/dp/B0775Z57H9

I think these are the same, both made by the same OEM: Bizlink, but not 100% sure.

I think he’s right. I had the exact same issue you’re describing while using the HDMI port on my Gigabyte G1 390, and it was not resolved until I switched to using a DisplayPort active adapter after which things worked perfectly.

This is the one I got. There are cheaper ones out there, but most of them are passive and won’t support the necessary bandwidth.

Get an Active DisplayPort to HDMI adapter and everything should work.

The card only supports 2 displays off of the internal clock. To use more monitors, they need to be active (aka have an adapter that adds a clock to the line so they work)

Maybe that display port to hdmi adapter is bad? I've bought three of the active cable matters adapters and I don't remember them not working. I had one running a 25 ft hdmi that I gamed on at one point. The others I have used for work. You could try one and return it if it doesn't fix the problem.

https://www.amazon.com/gp/product/B00EDT0072/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

EDIT: Forgot to mention that I have the same 1080 as you. I am using all three display ports with accell display port cables (no adapters) and then a 4th monitor on the 25 ft HDMI and it's all been working great for the last couple days. The RGB option showed for all 4 monitors.

You are probably using a passive adapter and need to get an active DP to HDMI adapter.

This is what I use with no problem:

https://www.amazon.ca/gp/product/B00EDT0072/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1

though I bought it over a year ago and it was $20 cad.

You can't use more than 3 non DP displays unless you use active DP adapters. Your TV is probably connected using a passive DP to HDMI adapter. You need an active one like this https://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072/ref=sr_1_1?ie=UTF8&qid=1482528470&sr=8-1&keywords=active+displayport+to+hdmi

If you utilize active rather than passive display port adapters it will work.

I used this guy to do 4 monitors from 1 card. https://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072

In some cases you have to enable the integrated graphics in BIOS. In other cases you are not able to do this. I think you should find the options to enable integrated video in your Z87 chip set though I may be wrong.

If you can't find the option, then there is this: http://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072

EDIT: If you have an open HDMI port on your card, and your TV accepts HDMI, why are you trying to convert DP to HDMI?

Just FYI, you can get a DP to HDMI adapter for $17 on Amazon:
https://www.amazon.com/gp/product/B00EDT0072/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1

Hi Takyon_dg, thanks for the info!

Here's a DisplayPort to HDMI adapter that we've tested with Windows Mixed Reality:

https://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072/

(Unfortunately, I'm not sure if any retailers in Canada sell this adapter. I tried to look for it on the NCIX, MemoryExpress, Amazon.ca and Newegg.ca web pages but didn't see it there)

Thanks!

Buy this:

https://www.amazon.com/gp/product/B00EDT0072/

I use it with my samsung odyssey and it works fantastic.

Thanks! I ended up picking this one up.

http://www.amazon.com/gp/product/B00EDT0072?colid=J8TXBYLP1VJO&coliid=ISKLV60QE5KG8&psc=1&ref_=wl_it_dp_o_pC_nS_ttl

I'll let you know how it goes!

From what I've gathered I think I may need this adapter here http://www.amazon.com/gp/product/B00EDT0072?psc=1&redirect=true&ref_=ox_sc_act_title_1&smid=A1AMUYYA3CT6HJ but I am not sure so I'm hoping someone who knows for sure can help. :P

I had this exact problem and I picked up this one from Amazon:

http://www.amazon.com/gp/product/B00EDT0072?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00

This adapter is also Eyefinity compatible.

If your HDMI monitor is 1080p/60hz, any eight dollar adapter should do you; if it's more than 1080p or more than 60hz, you need a more expensive active adapter.

There are a few straight lines of stuck pixels down the screen and it judders like it's not running 90hz. The adapter works fine with my TV (except for 5.1 audio, it only does stereo for some reason). This is the one I have: https://www.amazon.com/gp/product/B00EDT0072/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1 which seems like it should work based on the specs

I'm using this one, which is the other recommended one: https://www.amazon.ca/Cable-Matters-Plated-DisplayPort-Adapter/dp/B00EDT0072/ref=redir_mobile_desktop?_encoding=UTF8&psc=1&ref_=ya_aw_od_pi

The .ca page has some conflicting info I see. At one point it says 1920x1200, and at one point it says 4K. The .com page doesn't have the same disparity. There are reviews on there of people using it for WMR and getting 90 FPS though. I'll contact the seller about it to confirm, but I believe it to be the right adapter.

No, you need an active adapter like this

I did some more reading and found out I need an active DisplayPort adapter because my GPU needs two special clocks for the other two ports. DVI and HDMI both use this clock, but DisplayPort doesn't, so to have a third monitor I need an adapter that will take that DisplayPort signal, actively convert it into what I need (HDMI), and then output that signal. I plan to be getting this one, hopefully that should do the trick.

Thank you for your assistance, it's greatly appreciated.

Does the DisplayPort icon have a little "++" next to it like this? Or does it only have the "DP" part? If it has the ++, then you can use a cheap cable to convert. Otherwise, you need something more expensive.

On the listing you linked, I notice it doesn't specify passive or active. Only doing 1920x1080 makes it look like an older active chip. BTW You can ask the monitor about what resolution its getting from the computer.

This is the exact one I purchased. It works at 2560x1080

For the threads on LTT that recommend against the DVI to HDMI adapter, what generation of video card are they talking about? DVI protocol itself has limits, but these limits got worked around by sticking HDMI ports on the monitors and then you talk HDMI to the monitor.

Will this do the trick? http://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072/ref=sr_1_1?ie=UTF8&qid=1452599494&sr=8-1&keywords=active+hdmi+to+displayport+adapter

Hopefully because I just amazon same day shipped it :)

Not quite a "simple" DP>DVI converter, since it has to be active like this one for single link DVI (up to 1920x1080), or this one for dual link DVI (up to 2560x1440) or this one for HDMI.

It has to be active, because passive converters rely on the GPU sending out DVI or HDMI signals from the DisplayPort (using DisplayPort++, that's what the ++ means), so it's not really DisplayPort.

Technically, some Radeon cards only have two clocks to drive external monitors, so you can only use two legacy (DVI, HDMI) monitors at the same time. If the monitors share the same resolution and refresh rate they might be able to share the same clock, depending on the board manufacturer.

DisplayPort is clockless, so you can attach as many of those as you can fit, or if you use an active adapter then the clock on the GPU isn't used and it's generated by the adapter, so again you can use as many as you can fit.

I use this without any issues.

https://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072

It does, but I did some research on this recently and it's important to get the right cable.

If your monitor has a DP++ input, you can use a normal "passive" adaptor/cable. This means the monitor can handle the conversion from HDMI to DisplayPort.

If it doesn't, you need an "active" adaptor which has a chip inside it that handles the conversion. Something like this

I never ended up needing to buy an adaptor myself, but yeah, that's what I found when I looked into it.

More info here: https://www.startech.com/au/faq/displayport_converter_dp_multi_mode

>re out why things aren't working through your DisplayPort.
>
>Just to confirm, which (make/model) adapter are you using?

Hello. I'm currently using a cable matters adapter I bought from Amazon:

https://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072/ref=nav_ya_signin?ie=UTF8&qid=1537410927&sr=8-13&keywords=cable+matters+hdmi+to+displayport&

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The portal recognizes the headset, but no video output.

I have also tried another one from Plugable earlier:

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https://www.amazon.com/gp/product/B00S0C7QO8/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

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but with the same results.

If without the adapter the monitor runs at its native resolution then it's almost certainly your adapter, which appears to just be a simple passive cable.

Something like this should fit the bill.

Edit:adapter is the first result from a web search and not a specific recommendation. I've never looked into adapters just saw some things when I was looking for a new monitor. You're better off doing some research on which adapter is the best buy.

IMPORTANT EDIT: Just saw a question on that page, someone asked if its active or passive, everyone answers passive so there's your problem.

Yeah, doesn't really show. I assume the adapter is not active unless it says so, why miss a marketing chance right? Also if I compare yours to mine, mine is a lot chunkier, as are most of the active ones I find online, like this one
https://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072

Source for all this info is me running into the same thing a couple of years ago. Exact same problem, seeing 3 screens in settings but only being able to activate 2.

I think your best bet will be buying an adapter. You want an active display port adapter. It needs to be "active" meaning it's the adapter itself that handles the conversion.

Active displayport to VGA is cheapest at $15 and looks just as good as VGA straight off the card. If one of your monitors is already using an analog connection, then just pick up one of these.

The active displayport to DVI or HDMI is an all digital conversion so there's no quality loss. They cost a bit more at around 20 bucks.

Be aware that there is such a thing as an "active adapter" and a "passive adapter". The cheaper ones are likely passive ones - they will be unlabelled and will not work.

You need an active adapter.
https://www.amazon.com/dp/B00EDT0072/

I have not yet tried any other computers.

I have the same issue on my graphics card's hdmi 2.0b port and on its display port using this adapter which I believe is supported:
https://www.amazon.com/dp/B00EDT0072/ref=cm_sw_r_cp_apa_i_ru2wCbX5ZTKBV

Seems like an adapter issue, you might have a passive one instead of an active adapter.

You'll need something like this

Can't guarantee 100% that this will work but hey, it's not extremely expensive so if it doesn't work it's not that bad..
I'm hoping it will, keep me updated if you do decide to get one :)

After doing loads more research, I think this might solve my problem.

I want three monitors and am planning to purchase the ASUS VS239H-P. I have two monitors already plugged in with hdmi and dvi. I am using an amd card and I believe I need an active converter to plug the third monitor into display port. I just want make sure that this is the right one to buy.

It's a limitation in the digital video output of the card. HDMI uses the same digital signaling as DVI so that HDMI port is essentially an electronic duplicate of one of the DVI ports (with the audio added in). In order to run 3 displays off one card one of the displays has to be native display port OR has to be using an Active Adapter. Active adapters are only a little bit more expensive than the passive ones, but this will let all three of your displays function. Now if you do have a native Displayport display, that'll be slightly cheaper since all you'll need is the cable.

Edit: I'd also like to mention that in order to run a 4th display on this card you'll need to connect it to display port as well.

I'm a little skeptical of that one because it looks like a passive converter even though it's listed as active.

Normally it will look something like this: https://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072/ref=cm_cr_arp_d_product_top?ie=UTF8

The size is a bit larger because it needs to use an additional chip to convert the signal, otherwise you'll wind up with the same issue of only being able to duplicate one of your screens.

you need an active Display port adapter if you dont already have one. the adapter will say 'Active' or 'AMD Eyefinity' compatible on it.

this is the only one i can find on the best buy site:

http://www.bestbuy.com/site/visiontek-displayport-to-dvi-d-adapter/4582884.p?id=1218492340781&skuId=4582884&st=display%20port%20to%20DVI&cp=1&lp=7

http://www.bestbuy.com/site/visiontek-mini-displayport-to-dvi-d-adapter-black/4356649.p?id=1218475518927&skuId=4356649&st=display%20port%20to%20DVI&cp=1&lp=9

i cannot find an HDMI one on the BB site.

if you must have HDMI on the middle monitor, you would probably have to order it:

http://www.amazon.com/Cable-Matters-Plated-DisplayPort-Adapter/dp/B00EDT0072/

I'm having the exact issue as OP but I only have one card, G1 970..

Here are my available display i/o:
1 x HDMI / 3 x DisplayPort / 1 x Dual-link DVI-I / 1 x Dual-link DVI-D


Currently, I have 2 monitors in DP, 1 monitor in HDMI... and Rift plugged into an adapter to a DP port. How would I change my connections to get them all to function?


edit: would this fix my issues? https://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072/ref=sr_1_4?ie=UTF8&qid=1467485486&sr=8-4&keywords=HDMI+to+DP+active

Make sure your hdmi to displayport is using an 'active' adapter. I use the same set of connections and had to get the right adapter.

I used this one.

Did any other adapters give you issues? I'm pretty sure my adapters would work for you... for some reason I am cursed. I've tried these:

http://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o02_s00



http://www.amazon.com/Belinda%C2%AEDisplayPort-Converter-DisplayPort-Desktops-Displays/dp/B0156YVQ70?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o03_s00

There has got to be something I'm missing. What graphics card do you have?

Which two did you buy and what is the resolution and hz of your monitor?

I would expect something like this to be a better one. If it supports eyefinity that is a good sign that it didn't skimp on something. But the main thing you want is an "active" one.

This is one I have and use for hooking my laptop to tvs. Never had an issue: http://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072

This is a newer company and you can see their adapter is smaller than the other two, but it makes the same claims of support. This one even specifically says hdmi 1.4 support. http://www.amazon.com/Plugable-DisplayPort-Supports-displays-3840x2160/dp/B00S0C7QO8

Other than those 3, I do not think any other adapter on amazon would be worth buying. The rest are junk that may work with a 1080p tv, but that is it.

Probably a limitation of the card. I think it is that series of cards that had limited number of clocks available. In DVI and HDMI the signal has a clock signal to keep everything in sync.

Those cards can only provide 2 clock signals so you can only use any combination of 2 clocked outputs. Clocked outputs would be:

• DVI
  
• HDMI
  
• Passive DP -> HDMI/DVI cables (because the GPU does the conversion and needs to generate a clock signal for it)
  
  So while a passive adaptor will work with that card, it won't work in the situation you are in.
  
  You need to get an active DP->HDMI cable.
  
  Like this:
  
  http://www.amazon.com/Cable-Matters-DisplayPort-Supporting-Technology/dp/B00EDT0072

You need an active displayport adapter. I had this exact problem when I bought a regular displayport to HDMI cable and it wouldn't let me connect all three at the same time.