Reddit mentions of Cable Matters HDMI to DisplayPort Adapter (HDMI to DP Adapter) with 4K Video Resolution Support

The Pimax is DisplayPort, not Display Link. Display Link is a wireless standard, while DisplayPort is a cable. As for converting HDMI to DisplayPort, that is non-trivial. The common passive adapters you see only work the other way around. You'll need to buy an expensive active adapter, as many of the cheaper ones like this aren't capable of the resolution/refresh rate of the Pimax.

Should theoretically work: https://www.amazon.com/gp/aw/d/B00JQORLCG/

What what specific laptop do you have?

I am looking all over and honestly this is the only thing I found. http://www.amazon.com/Cable-Matters-Plated-DisplayPort-Converter/dp/B00JQORLCG/ref=sr_1_9?ie=UTF8&qid=1422654000&sr=8-9&keywords=hdmi+to+displayport

I can't guarantee it will work and it requires power through the USB connection, and a separate displayport cable. There is a lot of Displayport to HDMI but almost no HDMI to DP.

So what you need is a male HDMI-female DisplayPort adapter and a DisplayPort cable

Edit: Here's an example

Edit 2: The reason why they only work one-way is that it takes a specialized circuit to convert from one to the other, and on top of that the circuitry requires power that HDMI ports can't provide (hence the USB connector on the one I linked). DisplayPort -> HDMI doesn't need the USB connector because the DisplayPort port has more power available.

Is it an HDMI to Display Port adapter or is it a Display Port to HDMI adapter that you try to connect in a reverse order? Cause googling for Insignia HDMI to Display Port adapter doesn't bring any hits.

HDMI to Display Port adapters are not so common and they are more expensive. Here are some from Amazon (1),(2),(3),(4).

They exist. I have this one. Now will it work with freesync is a different question.

https://www.amazon.com/Cable-Matters-DisplayPort-Converter-Supporting/dp/B00JQORLCG/ref=sr_1_20_sspa?ie=UTF8&qid=1521600887&sr=8-20-spons&keywords=hdmi+to+dp+adaptor&psc=1

Ok that is a DisplayPort to HDMI adapter. You won't get DP out of that it is only a one way conversion. You need a HDMI to DP converter.

This is the least expensive one I see on Amazon. http://www.amazon.com/Cable-Matters-Plated-DisplayPort-Converter/dp/B00JQORLCG/ref=sr_1_8?s=electronics&ie=UTF8&qid=1417560203&sr=1-8&keywords=hdmi+to+displayport Still not sure if it would handle HDCP correctly though.

You can use something like this to connect your DP monitor to the extra HDMI port:

https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Supporting/dp/B00JQORLCG

So I think this cable should be the thing to make it work. The whole idea behind this cable is to allow laptops with HDMI to connect to a monitor with a DP input. And since the headset is technically a monitor, then this should work. Someone in the reviews even said that they were able to get 144hz running with this. So this would be the last hope. Some other person told me the coupler I linked before might just cause more issues. This has gotta be the answer.

These guys make a working HDMI 2.0 to DP converter, however it only supports 1080p, 2160p/4K output, their device is firmware upgrade-able so you could try asking them if they would support 1440p output.

https://www.siig.com/hdmi-2-0-to-displayport-1-2-converter-4kx2k-60hz.html

This converter can turn HDMI into DP but it's meant for PC's and it's hard to know if it will work with Xbox 2018 1440p support.

https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Supporting/dp/B00JQORLCG/

Club3D make this PC GPU converter, it turn HDMI 1.4 into DP, same as above

https://www.amazon.com/Club3D-CAC-2330-DisplayPort-Adapter-Female/dp/B076KXYKN2/

There is this cheap Belkin HDMI 2.0 to DVI cable that might be worth a try.

https://www.amazon.com/Belkin-HDMI-DVI-D-Cable-Supports/dp/B004W44YIO/

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Thanks for the help man.. I'm trying this one out. Apparently, it doesnt work with PS4 but should work with xbox. If not I'll return it and just buy a new monitor.

https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Supporting/dp/B00JQORLCG

HDMI to DisplayPort Adapter. Gonna need a DisplayPort cable to go along with it.

Any active Hdmi to display port converter will work.

Its when you go from display port to HDMI that it gets REALLY expensive.

Adding HDMI: if you don't want to pay the StarTech hype tax, https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Supporting/dp/B00JQORLCG this is cheaper and 4.5 stars reviewed.

Nope.

Use an adapter

https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Supporting/dp/B00JQORLCG

I ended up ordering this one: https://www.amazon.com/gp/product/B00JQORLCG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

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And unfortunately it did not work. Power light was on for the adapter, but when I plugged the HDMI into my laptop it just didn't register anything. When I plug a normal HDMI display in it just switches over right away.

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Not sure if it would work with a more expensive/powerful one. I gave up for now.

One like this. Does your computer not output displayport? Note that you won't get 144hz outputting from the HDMI on your computer.

Yeah, there aren't a lot of HDMI to DP options out there, but there are some.

so it looks like i'll need to buy these two things:

Cable Matters Gold Plated HDMI to DisplayPort Converter in Black

https://smile.amazon.com/dp/B00JQORLCG/ref=sspa_dk_detail_1

and this one:

AmazonBasics HDMI Coupler (2 Pack), 29 x 22mm, Black

https://smile.amazon.com/AmazonBasics-HDMI-Coupler-Pack-Black/dp/B06XR8RBTQ/ref=sr_1_7

then use a basic DP cable between monitor and adapter.

and use the coupler between Chromecast and adapter.

is that right?

https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Resolution/dp/B00JQORLCG

You'd need something like this and a matching displayport to mini displayport cable to connect.

https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Supporting/dp/B00JQORLCG
Maybe this one?

Cable Matters HDMI to DisplayPort Adapter/HDMI to DP Adapter with 4K Video Resolution Support https://www.amazon.com/dp/B00JQORLCG/ref=cm_sw_r_cp_apa_i_tHS2Cb73B7WW8

Something like this could work but might be capped at 60Hz. I wonder if the reviewer made sure he was getting 80Hz with the adapter.

The adapters you're describing sound as if they are standard directional adapters. You need an adapter that will adapt the Switch's HDMI output to a DisplayPort signal. Basically, the adapter needs to connect to the Switch deck and then a displayport cable from the adapter to the monitor.

As an example, this should work fine: Cable Matters HDMI to DisplayPort Adapter (HDMI to DP Adapter) Supporting 4K Black https://www.amazon.com/dp/B00JQORLCG/ref=cm_sw_r_cp_apa_FHvYBbC4XNTC9

Yeah, it should work fine. You might see some upscaling artifacts, though, as the PS4 outputs at 1080p, and not 1440p. They're usually not that bad. You will need an adapter.

EDIT: Like one of these: https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Supporting/dp/B00JQORLCG/ref=sr_1_11_sspa?ie=UTF8&qid=1538154781&sr=8-11-spons&keywords=hdmi+to+displayport+cables&psc=1

Scratch that, that one won't work. This might: https://www.cablestogo.com/product/54179/hdmi-to-displayport-adapter-converter

Not the cable. The cable is for connecting a displayport device to an HDMI display.

You might as well buy a cheap TV.

You need an active adapter like this https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Supporting/dp/B00JQORLCG?crid=2R0HZ4YOJILF&keywords=hdmi+to+displayport+cable&qid=1538161300&sprefix=hdmi+to&sr=8-10&ref=mp_s_a_1_10

Would it work if I used a USB-C to HDMI, and then an HDMI to DisplayPort cable (https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Supporting/dp/B00JQORLCG?crid=1DLXWP1322SFN&keywords=hdmi+to+displayport+cable&qid=1537878934&sprefix=hdmi+to+di%2Caps%2C164&sr=8-9&ref=sr_1_9)? Would that work?

Pretty sure HDMI to DVI will work both ways. I'm almost positive I've used them in such a way, but can't set up a test at the moment, so here's an avforums thread about it.

However, the poster is asking about HDMI to DisplayPort, which is different than DVI and is not bi-directional (another thread about it). Maybe you were saying "DVI" in place of "Displayport" by mistake?

I haven't tried this product, but this is the sort of thing you'd need:

https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Resolution/dp/B00JQORLCG

> The HDMI spec's only single mention of DVI is a way to tell them apart when the same cable/connector is being employed, and only the DVI protocol has 1440p because you can have any random resolution.

The HDMI spec outlines the required interoperability with DVI, which means it's still part of the HDMI spec. There are a couple of sections on this.

> Finding plenty of examples of going from DisplayPort to DVI/HDMI-connector isn't relevant, the tech isn't bi-directional in this scenario.

They are examples of adaptor manufacturers supporting the particular resolution in DVI, illustrating that it's seen as commonplace enough to implement.

As I mentioned, in general I'm mainly talking about your initial statement about HDMI which I think is still misleading even if you include the word 'spec'.

As far as adaptors are concerned, I'm not arguing that it's likely a supporting adaptor will be released - it probably depends on demand. I can find examples of active adaptors supporting 1440p at 60Hz for example, it's perhaps just a bit more expensive+difficult to implement higher refresh rates.

> There might be some larger equipment somewhere that can accept DVI-over-HDMI and output it to DisplayPort, but you wouldn't call this an "adaptor"

There are active adaptors that provide 1440p from HDMI to DisplayPort, albeit not at higher refresh rates yet that I can find as mentioned. They are called just that: active adaptors, because circuitry is required for the translation. Just like my linked WMR adaptor examples. Maybe you're thinking of only passive adaptors?

> What you're asking for is both where the source is a HDMI connector.

I'm not "asking for" anything. I do however say that an active adaptor is not particularly out of the realm of possibility.

I'm guessing that even if an active adaptor supported the required resolution & refresh rate, there'd be some kind of timing issue anyway. I honestly don't care about an adaptor for the Oculus Rift S at all, I'm just debating your referring to HDMI's support.

> Write some code that uses 2 graphics cards that receives on one and outputs on the other, though everything needs to be there that the Rift S wants.

I'm not sure what you mean here - are you talking about using two graphics cards to do the job of an active adaptor?

(Like this one? https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Resolution/dp/B00JQORLCG )

With all due respect, while you may work for a company that deals with video interface implementation, I don't think that either of us are really qualified to comment on the implementation of active adaptors.

I already tried hdmi to hdmi and it didn't give me the option so im guessing its not 3.1 or above.

Would something like this be best?

https://www.amazon.com/Cable-Matters-DisplayPort-Adapter-Resolution/dp/B00JQORLCG/ref=sr_1_10?keywords=display+por+usb+converter&qid=1566421962&s=gateway&sr=8-10

Something like this one maybe.

Or this one although it takes a USB port.

Not sure if they work, but I don't see why it wouldn't.

Either way I'm glad Asus provided 2 HDMI ports as current gen VR headsets use HDMI for video input — even if they did include the USB Type C connector for future VR headsets.