Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

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Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Wed Aug 13, 2014 5:54 pm

I'm actually thinking of getting a 4k TV (Not for gaming), but all of the prospective choices include only HDMI 2.0 for 4K@60HZ. As the only TV's with displayport, two panasonics:

http://www.bestbuy.com/site/panasonic-6 ... 29924706-2

http://shop.panasonic.com/shop/model/TC-58AX800U

are ridiculously pricey, I'm reluctant to get them. I just bough a gtx 760 (horay!) a short time ago, and I'm quite worried that the adapters aren't coming out...

Could anyone shed some light on the current state of affairs for DP 1.2 to HDMI 2.0 adapters?
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Wed Aug 13, 2014 9:48 pm

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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Wed Aug 13, 2014 10:00 pm

deruberhanyok wrote:zuh?



The main issue: Is that HDMI 2.0, or 1.4? I've never been able to find that vital piece of information for that specific adapter.

Nvm. The reviews are atrocious, and my desktop gpu has full sized DP, not mDP. (Although I could use it at 52 hz with my macbook pro at 4k)

http://www.amazon.com/moshi-MiniDisplay ... adapter+4k
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Wed Aug 13, 2014 10:13 pm

xonarlover wrote: My desktop gpu has full sized DisplayPort, not mini-DisplayPort.
That's not much of a hurdle. http://www.monoprice.com/Product?c_id=1 ... 1&format=2
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Thu Aug 14, 2014 10:18 am

Yeah, those mini-to-regular adapters should be fine; there's no electrical difference between the two, it's just an inconvenience.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Thu Aug 14, 2014 10:24 am

The issue is: Is the adapter hdmi 2.0, or hdmi 1.4?
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Thu Aug 14, 2014 11:20 am

Ah, well, in that case I'd say: sure, there will probably be one eventually. I'd keep an eye on monoprice for one.

Given the experiences I've had with active adapters, though, you may be better off buying a video card with an HDMI 2.0 output.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Thu Aug 14, 2014 12:34 pm

Looking at it the only difference that would impact this adapter for 1.4 to 2.0 is 30Hz to 60Hz frequency.

Why don't you go to Moshi's site and ask using their support links?
https://www.moshi.com/support
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Sun Aug 17, 2014 9:01 pm

Looking around for the part number (99MO023208) you can find listing dating back nearly a year which is before all the HDMI 2.0 circuitry hit the market. I believe it is safe to say that it is HDMI 1.4 so you'd only get 4K at 30 Hz from it.

All the HDMI 2.0 stuff I've heard coming out in 2014 was due at the end of the year.

After a bit of Google-fu, I've found one erroneously claiming to support HDMI 2.0. The big catch is that this is a passive adapter which will relay on TMDS pass through when the source has HDMI 2.0 support. Of course without any video card supporting HDMI 2.0 out yet, I think it is safe to say that there isn't any adapter on the market capable of 4k@60 hz via an HDMI adapter today.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Wed Sep 10, 2014 6:54 pm

Registered here just to post this.

Adapters will be out next year.

I can say this on good authority because I found the actual manufacture who made the chips that do the DP 1.1 -> 300 Mhz TMDS (hdmi 1.4) conversion and emailed them over a year ago and that is how I found out accel cables/bizlink (who they partner with to make the dongles with their chip) were coming out with their active DP 1.1 -> HDMI 1.4 adapter (several months before they released it).

I recently contacted them again and got verification they are indeed working on a chip to do DP 1.2 -> HDMI 2.0 (600 Mhz TMDS) conversion and they are currently in the works with accel/bizlink again who should have the dongle available in Q2 2015 (or possibly Q1) so they should be out sometime in the next 9 months (maybe a bit sooner) but sometime next year.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Wed Sep 10, 2014 7:09 pm

the wrote:Looking around for the part number (99MO023208) you can find listing dating back nearly a year which is before all the HDMI 2.0 circuitry hit the market. I believe it is safe to say that it is HDMI 1.4 so you'd only get 4K at 30 Hz from it.

All the HDMI 2.0 stuff I've heard coming out in 2014 was due at the end of the year.

After a bit of Google-fu, I've found one erroneously claiming to support HDMI 2.0. The big catch is that this is a passive adapter which will relay on TMDS pass through when the source has HDMI 2.0 support. Of course without any video card supporting HDMI 2.0 out yet, I think it is safe to say that there isn't any adapter on the market capable of 4k@60 hz via an HDMI adapter today.


Awesome. Thanks for the info.

No reason then to buy a 4K TV until next year then (unless there are video cards that I've missed that have HDMI 2.0).
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Fri Jul 03, 2015 2:49 am

houkouonchi wrote:I recently contacted them again and got verification they are indeed working on a chip to do DP 1.2 -> HDMI 2.0 (600 Mhz TMDS) conversion and they are currently in the works with accel/bizlink again who should have the dongle available in Q2 2015 (or possibly Q1) so they should be out sometime in the next 9 months (maybe a bit sooner) but sometime next year.


Two questions:
1. Any news about this crazy little thing? Its Q3 now and I'm still interested :)
2. Has anyone got a list of TVs with DisplayPort? Obviously this would be the alternative.

Regards,
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Fri Jul 03, 2015 5:53 am

There appears to be at least one chip available to build a dongle around, the MegaChips MCDP2850-BB, but I can't find any info on actual dongles in production.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Fri Jul 03, 2015 11:18 am

JustAnEngineer wrote:
xonarlover wrote: My desktop gpu has full sized DisplayPort, not mini-DisplayPort.
That's not much of a hurdle. http://www.monoprice.com/Product?c_id=1 ... 1&format=2

I daisy-chained a DP to mDP adapter, and an mDP to HDMI adapter (thanks to one laptop having mDP, and the new one DP). Works perfecrly, not missing any pins or the like.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Thu Oct 15, 2015 5:55 pm

That should work for you uptab.com are selling DisplayPort and Mini DisplayPort to HDMI 4K@60Hz
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Thu Oct 15, 2015 6:09 pm

xonarlover wrote:I'm actually thinking of getting a 4k TV (Not for gaming), but all of the prospective choices include only HDMI 2.0 for 4K@60HZ. As the only TV's with displayport, two panasonics:

http://www.bestbuy.com/site/panasonic-6 ... 29924706-2

http://shop.panasonic.com/shop/model/TC-58AX800U

are ridiculously pricey, I'm reluctant to get them. I just bough a gtx 760 (horay!) a short time ago, and I'm quite worried that the adapters aren't coming out...

Could anyone shed some light on the current state of affairs for DP 1.2 to HDMI 2.0 adapters?

Here you are... DisplayPort to HDMI 2.0 Adapter
Supports HDMI 2.0 Technology, which increases bandwidth from 10.2 Gbps to 18 Gbps and is 4k and Ultra HD compatible. Increases from 8 Audio Channels to 32 Audio Channels for expanded audio. 60 fps video playback at 4k resolution. Dynamic synchronization of video and audio streams.
Belkin DisplayPort cables bring an all-digital, high-performance cable standard to life. DisplayPort cables provide the ideal digital display interface standard for maximum high-definition performance, all in one cable.
This top-of-the-line technology delivers extreme refresh rates, intense color depths, and high resolution for all your computing display needs. With its compact size,
Belkin DisplayPort cables will be the only high-definition, all-digital audio video cable a user will need for any DisplayPort-enabled digital computing device.
And because DisplayPort technology is highly scalable, DisplayPort is the future-proof standard for all embedded and box-to-box applications.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Mon Oct 19, 2015 6:17 am

Mr Bill wrote:Here you are... DisplayPort to HDMI 2.0 Adapter


That appears to be a passive adapter. The product page doesn't even mention HDMI 2.0.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Mon Oct 19, 2015 9:08 am

the wrote:
Mr Bill wrote:Here you are... DisplayPort to HDMI 2.0 Adapter


That appears to be a passive adapter. The product page doesn't even mention HDMI 2.0.


Definitely read the reviews that DP to HDMI adapter does not work.

Also be very careful with the stick DP to HDMI adapters that are like a USB stick....they make it very easy to break your GPU's Display port. Th adapters with a short cord between the 2 different connectors are much safer.

I had a new Monoprice HDMI cable ruin my HDMI out on my HIS 7750. When I plugged in a "NEW" HDMI cable it pushed out some of the HDMI pins on the graphics card. Luckily Monoprice had a 6ft DP to HDMI whole adapter cable that works great and does not add the extra length and weight on a GPU's DP like the stick type adapters.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Mon Oct 19, 2015 12:16 pm

Hmm, very bad reviews indeed. However, does the ATI HD 7770 mentioned in the first review even support 4K at more than 30fps? Maybe this one will work, it has 4 stars, 926 reviews and Cable Matters makes pretty good cables....
Cable Matters® Gold-Plated DisplayPort to HDMI Male to Female Adapter - 4K Resolution Ready
Portable adapter connects a DisplayPort (DP, DP++, DisplayPort++) equipped laptop or desktop to an HDTV, monitor, or projector with HDMI input; An HDMI cable (sold separately) is required
Transmits high-definition audio and video from your computer to an HDTV for video streaming or gaming; Connect and configure your monitor for an Extended Desktop or Mirrored Displays
Supports 4K (3840x2160) Ultra HD resolution and uncompressed digital 7.1, 5.1 or 2 audio channels
Gold-plated connectors resist corrosion, provide durability and improve the signal transmission
DisplayPort connector with latches provides a secure connection with a release button that must be depressed before unplugging


P.S. what is "active" vs "passive" in this context?
Last edited by Mr Bill on Mon Oct 19, 2015 7:53 pm, edited 2 times in total.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Mon Oct 19, 2015 12:42 pm

Mr Bill wrote:Hmm, very bad reviews indeed. However, does the ATI HD 7770 mentioned in the first review even support 4K at more than 30fps? Maybe this one will work, it has 4 stars, 926 reviews and


Yes. All GCN based cards can support 4K @ 60 Hz but only through DP 1.2. Using a passive adapter limits output to HDMI 1.4 which has a limit of 4K @ 30 Hz. Hence the need for a DP 1.2 to HDMI 2.0 active adapter.

Mr Bill wrote:Cable Matters makes pretty good cables....
Cable Matters® Gold-Plated DisplayPort to HDMI Male to Female Adapter - 4K Resolution Ready
Portable adapter connects a DisplayPort (DP, DP++, DisplayPort++) equipped laptop or desktop to an HDTV, monitor, or projector with HDMI input; An HDMI cable (sold separately) is required
Transmits high-definition audio and video from your computer to an HDTV for video streaming or gaming; Connect and configure your monitor for an Extended Desktop or Mirrored Displays
Supports 4K (3840x2160) Ultra HD resolution and uncompressed digital 7.1, 5.1 or 2 audio channels
Gold-plated connectors resist corrosion, provide durability and improve the signal transmission
DisplayPort connector with latches provides a secure connection with a release button that must be depressed before unplugging


P.S. what is "active" vs "passive" in this context?


A passive adapter utilizes DisplayPort's optional multi-mode functionality to directly send a HDMI signal over the DP connector. Essentially a DP port becomes an HDMI port for all intensive purposes. The only thing the adapter contains is a small voltage regulator to step up the DP signal to the proper voltage levels used by HDMI. As mentioned, this multi-mode functionality is optional though the majority of consumer implementations have it. Of note is that video cards typically only support a maximum of two HDMI signals be it from DVI (which basically uses the same encoding as HDMI), native HDMI or DisplayPort multi-mode. Thus a video card with three DP, one HDMI and DVI ports would need active adapters to drive an additional HDTV set if the HDMI and DVI ports were already in use.

An active adapter contains a chip that directly converts the native DP signal to HDMI. Video cards that don't support multi-mode can still work with an active adapter to drive HDMI output. Thus older video cards which could only do DP 1.2 multi-mode with the HDMI 1.4 spec could use this adapter to support HDMI 2.0 and its 4K @ 60 Hz glory. Active adapters are also recommended if you are using a DisplayPort MST hub.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Mon Oct 19, 2015 1:56 pm

the wrote:Active adapters are also recommended if you are using a DisplayPort MST hub.

Not only that, but they seem to be required with some MST devices. The U3014, for one. On the other hand, I've seen separate hubs that don't seem to need it.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Mon Oct 19, 2015 3:09 pm

localhostrulez wrote:
the wrote:Active adapters are also recommended if you are using a DisplayPort MST hub.

Not only that, but they seem to be required with some MST devices. The U3014, for one. On the other hand, I've seen separate hubs that don't seem to need it.


Yeah, I was honestly surprised that my Accella 3 port MST hub doesn't need active adapters but it does support more resolutions and features if I do. The neat thing is that it'll take two 1920 x 1080 displays using passive adapters to create a single 3840 x 1080 virtual display for hosts that only support three displays total *cough* Intel IGP *cough*.

I've actually had very good success daisy chaining Dell monitors with an active adapter to an HDTV but no luck using passive adapters.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Mon Oct 19, 2015 3:37 pm

Mr Bill wrote:P.S. what is "active" vs "passive" in this context?


In brief, passive adapters rely on the host DP port to send the proper HDMI signaling via DP++/dual-mode functionality. Active adapters take a native DP signal (LVDS) and convert it to TDMS signaling used by HDMI, regardless of whether or not the host DP port supports alternate signalling.

Additional info can be found in the FAQ here:
http://plugable.com/products/dp-hdmi

Disclaimer: I am indeed a Plugable employee, but posting here (as usual) on my own time.

Also, regarding DP to HDMI 2.0 conversion, there are 2 ICs capable of this currently; one of which is available currently (MegaChips) and one of which is close to market (Parade).

I'd expect to see stand alone DP->HDMI 2.0 active adapters out by Q1 of 2016, give or take.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Mon Oct 19, 2015 7:56 pm

OK, here is one that claims to be an active adapter...
Cable Matters® Gold Plated Active Mini DisplayPort to HDMI Male to Female Adapter Supporting Eyefinity Technology & 4K Resolution

Lightweight and portable adapter for connecting a Mini DisplayPort (Mini DP or mDP)/Thunderbolt™ port compatible computer to an HDTV, monitor, or projector with HDMI; A separate HDMI cable (sold separately) is required
Transmits both audio and video from computer or tablet to HDTV display; Supports video resolutions up to 3840x2160 (Ultra HD) and flawless audio pass-thru for uncompressed digital 7.1, 5.1 or 2 channels
Gold-plated connectors resist corrosion, provide rigidity, and improve the signal performance
Support AMD Eyefinity Multi-Display Technology
Compatible with Apple MacBook, MacBook Pro, MacBook Air, iMac, Mac mini, Mac Pro; Microsoft Surface Pro/Pro 2/Pro 3 (NOT Surface for Windows RT); Lenovo ThinkPad X1 Carbon, X230/X240s, L430/L440/L530/L540, T430/T440/T440s/T440p/T530/540p, W530/W540, Helix; Dell XPS 13/14/15/17, Latitude E7240/E7440, Precision M3800; Alienware 14/17/18; Acer Aspire R7/S7/V5/V7; Intel NUC; Asus Zenbook; HP Envy 14/17; Google Chromebook Pixel; Cyberpower Zeusbook Edge X6; Toshiba Satellite Pro S500, Tecra M11/A11


However, I see no info about supported 4K frequency...
looks like this is mostly about getting three monitors going "eyefinity"
One review with two 6800 cards in crossfire says 60Hz for three monitors but does not say if that is 4K. Another review with a single 7850 says it only runs 4K at 30Hz.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Mon Oct 19, 2015 8:32 pm

Mr Bill wrote:OK, here is one that claims to be an active adapter...
Cable Matters® Gold Plated Active Mini DisplayPort to HDMI Male to Female Adapter Supporting Eyefinity Technology & 4K Resolution
...
However, I see no info about supported 4K frequency...
looks like this is mostly about getting three monitors going "eyefinity"
One review with two 6800 cards in crossfire says 60Hz for three monitors but does not say if that is 4K. Another review with a single 7850 says it only runs 4K at 30Hz.


According to the manufacturer page, the maximum supported resolution is 1920 x 1200. That would be indicative of an HDMI 1.2 spec adapter. The user reports of 4K @ 30 Hz support would point toward an HDMI 1.4 spec adapter. Regardless, this one does not appear to support HDMI 2.0.
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Mon Oct 19, 2015 11:17 pm

Yeah, looks like every claim for 4K HDMI 2.0 support for such adapters are just weasel words. :D
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Re: Will there ever be a DP 1.2 to HDMI 2.0 Active Converter

Postposted on Fri Dec 04, 2015 9:01 pm

Hi, I’m Eric with Accell, and our DisplayPort 1.2 to HDMI 2.0 adapters are scheduled to arrive the week of December 21, 2015. They will be available first on our web site in limited quantities before they begin rolling out to the stores after January 1, 2016. For product information, please visit our product page @ accellcables.com/collections/adapters/products/displayport-1-2-to-hdmi-2-0-adapter
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