Displayport 1.4 to Hdmi 2.1 active adapter?

Updated on 06-06-2019 in Adapters and Cables
7 on 13-05-2019

Displayport 1.4 to Hdmi 2.1 active adapter?

Can we get one made please?

Specifically talking about a GTX2080ti display port 1.4 sending 4k 120fps to a LG C9’s hdmi 2.1 port.

 

Can it be done? 

Probably quicker than Nvidia adding hdmi 2.1 to their cards.

Make it so Clubbies!!

 
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0 on 13-05-2019

Hello Pittyh,

All i know is that club3d is working on it there is no date set when it comes out. might be Q2 or Q3.

as soon as it is available it will be announced on the club3d website.

 

Stay tuned 🙂

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0 on 14-05-2019

Thanks,

 

Although, I’ve read displayport 1.4 is only capable of 28gps? so not sure if it would even work now. with hdmi2.1 4k120fps probably being more than 28gps?

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0 on 14-05-2019

Hello Pittyh,

I am not aware of 28gps, i think you mean Gbit/s. GPS stands for global positioning system, not part of club3d their portfolio.

The allocation of displayport is as follows:

The maximum bandwith is set on 32.4Gbit/s

The maximum data rate is set on 25.92Gbit/s

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0 on 15-05-2019

Yes I missed a b in there, quite a few times. My bad.

Anyway my point is the difference between bandwidth of hdmi 2.1 and displayport 1.4 may cause some limitations as to what resolutions/colour depth can be transported.

 

Could 4k 120hz with HDR even work?

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0 on 15-05-2019

Hi pittyhm

thank you for refraising your question. Displayport 1.4 is able to put out [email protected] hence it is able to put out [email protected]

Hdmi 2.1 is able to match these specifications with [email protected] and [email protected] 

the color output on both will be 4:4:4

for indept reading i would like to refere you to VESA and HDMI

https://vesa.org/featured-articles/vesa-publishes-displayport-standard-version-1-4/

https://www.hdmi.org/manufacturer/hdmi_2_1/index.aspx

Club3d Cables are certified by these standarts.

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0 on 24-05-2019

DisplayPort 1.4 only supports 25.92 Gbps of data (50% more than DisplayPort 1.2) but has Display Stream Compression (DSC) which is required for 8K 60Hz 8bpc (RGB or 4:4:4).

HDMI 2.1 supports 42.667 Gbps and can achieve 8K 50Hz 8bpc (RGB or 4:4:4) without DSC (60Hz requires DSC). HDMI 2.1 also supports DSC though, so it can go much higher than DisplayPort 1.4.

HDR uses 10bpc.

So even though the bandwidth of HDMI 2.1 is greater than DisplayPort 1.4 (only by 65%) an adapter to convert one to the other (including DSC on both ends) would still be useful.

Is it possible to create an HDM 2.1 display that doesn’t support DSC? If so, then it would be useful for a DisplayPort 1.4 to HDMI 2.1 adapter to tell the computer that it supports DSC, then uncompress the output to the HDMI display.

 

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0 on 06-06-2019

Well if you can belt one of these out quickly enough before the video card manufacturers release hdmi2.1 cards, you might sell a few.

 

I would buy one.

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