I’m not quite ready to upgrade with two 1080 TI’s. But I might

Club 3D better get it out if they want to sell the stuff

I think in general its a mistake to announce a product if they wont release it soon after, it has been almost a year now and no more information has been given. Not a big deal as they are much bigger problems in life   but personally I lost interest in the adapter, and generally trust  AMD and nvidia more with releasing a product when they announce it.

I think it’s wise to get native support

the last 2 cables that i got from club 3d did not last a month.  ( hdmi 2.0 to dp 1.4 ) screen flashing black often etc… These kind of adapters are not stable.

I may actually jump on board with good old AMD if they truly have a car that can beat the 2080ti

the rx5950xt is rumored to be 30% faster than the 2080ti, for much cheaper.  But then the rtx 3080ti will be 50% faster than the 2080ti for a bit more expensive ( nvidia said that the 3080ti will be cheaper than the 2080ti at launch )  Honestly I ll just go for the first one to be released, as long as hdmi 2.1 is fully supported, and I can finally get my lg c9 at 4k 120hz, 10 bits

Hi,

Interesting info does anyone has a set date for HDMI2.1 to drop? 

as far as i know not even HDMI.org has set on the standard pf HDMI2.1 yet ?1

BricoDepot1987,

Which HDMI cables did you have of club3d,if they failed within a month have you got replacements?

we know for a fact that the Amd gpu inside de ps5 has hdmi 2.1 already .   Nvidia and amd also confirmed that their next gen gpu will be able to unlock 4k 120 fps full chroma on Lg C9 – C10 etc.   About the dates : everything will be out for this summer. The hdmi.org standard could just come after and is not important . In the past it was the same story with hdmi 2.0.

as for the cables, i got 2x CAC 1080.  first one was working on and off, with black screen etc, then stopped working,  i bought a second one on amazon, and it was the same, I was runing a lg c9 4k 60hz 4.4.4 chroma  with a gtx1080ti. From what I understand, the voltage or something is not stable at this resolution and the cable damdages itself with time. ( and I am clearly not the only one that got the issue )

I did not try getting a free replacement as shipping where is live just takes too long.

The information is given in a few CES interviews by youtubers etc. When asked about Lg cX capabilities, Nvidia representative states that today their graphics cards cant utilise full hdmi 2.1 capabilities, but that as soon as their next gpu is out, people will be able to use all of hdmi2.1 and also stated that lg c9 will be able to be ran at 4k 120hz 10bits at full chroma subsampling, with gsync etc.   As for Amd, it is known in the specs already that the Xbox series X and Ps5 have a custom Navi next gen gpu, that will enable 8k 60 hz gaming, as well as true 4k 120 hz through hdmi + Variable refresh rate etc .  ( we know that only hdmi 2.1 is capable of this )  Common sense then will tell you that if amd did include hdmi 2.1 on the ps5 and Xbox next gen Gpu, then they will also include it in the Rx5900xt series coming soon.

Just forget about it

I guess development takes time.

Rumors have it somewhere Q2 of this year.

I asked Club3d on Facebook, they said the end of March (This Month).

You have a prototype? How can I get in on that? Have you tested 4k 120 on c9?

The prototype I have is a Rextron brand (no, not Extron) and is not yet available in the marked. I talked to Lontium and they expect chip availability in April, so I expect the marked to open up around that time.

Hi,

Would this be HDMI2.1 to DP1.4 or HDMI2.0b to DP1.4?

The Lontium chip early datasheet seems to suggest HDMI2.1 to DP1.4. I got an early sample wich may have limitations. Rextron claims its HDMI2.0 to DP1.2. I have not tested it beyond 4k60 4:4:4, as I don’t have any testgear for that atm. It could be the implementation (signal integrity) that limits the bandwidth, or it could be the early sample chip, or they havent tested beyond 600Mpps bandwidth. The HDMI2.1 part is less interesting to me right now.

I see DP1.4 to HDMI 2.0b. Is that what you’re referring to?

Needs to be DP 1.4 to HDMI 2.1

I asked OST if his version is the one you referring to. That would be interesting to know.

Something funny with that URL, as when I first opened it, I (probably like net200777) got the DP->HDMI adapter up.. Working a bit more with the link I ended up with the CAC-1331, wich seems to be what we all look for. I wonder if its available.

“The Club 3D CAC-1331 is an HDMI™ to DisplayPort™ 1.2 Active Adapter which allows you to transmit a HDMI™ signal into a DisplayPort™signal. This product supports DP1.2 specification with resolution up to 4096 x 2160@60Hz. Besides, it is equipped with USB Type A port to supply power in case there isn’t enough power from HDMI™ source. This Adapter is Uni-Directional. “

..but it bothers me that they didn’t power it from the DP end through a DP male cable tail on instead of that branching mess. A female DP plug can not utilize the power from DP, because the cable can not carry power, but a cable tail with DP male plug can utilize power from the sink’s DP port. The HDMI port is normally not dimensioned for this kind of power, so you end up with a cable mess.

You won’t get 4:4:4 at that rate. DSC most likely wont be that effective, so you need to wait for Displayport2.x to go there. Im pretty sure you dont have a sink that can handle that already
Bandwidth wise, you could get 4:2:0 at 120Hz over this adapter. Idk if the firmware will support it tho. I like to keep my pixels perfect tho. Color compression is “cheating”.

. To be honest , i simply think that both companies failed to produce a stable adapter. ( Realtek also never released it)

The current hdmi 2.0 to dp 1.2 is also very unstable and breaks after a few months of utilization ( if you use it fully at 4k 60 hz chroma 4.4.4 )

please stop with your negative FUD !

My main rig is running with this adapter at 4.4.4 at 60hz 4k for 2 years now. Also made a gaming computer connected to my LG OLED again same adapter same resolution been running 1.5 years now.

Congratulations Lance , i am happy for you. However not everyone got lucky like you. The issue here is not my negativity , it is that plenty of people got deffective adapters, and that we are not supposed to gamble when buying a cable. Just look at the reviews. Now enjoy your working cable .

Brick I understand that isolation gets to all of us.

You mention plenty of defective adapters were you able to map this. That would be interesting since I do not find this information. Also did you tried just simply to return your adapter under warranty, what every other user would do I guess.

You can see the reviews on amazon for the same cable, it has a very high amount of 1 star reviews mentioning the same issues. to answer your question Clubbie, I actually did return my cable once, ( it failed after 2 months )   and the second one that I got is still working but un-usable because it flickers my monitor randomly. ( considering that it takes 2 months to get a new one, i simply gave up )

Mainly what I see is 62% 5 stars 8% 4 stars make 70%, So how do you measure.

that leaves 1/3 of the buyers having issues, do you think its normal ?  many products have 95 + % of 5 stars.

And u know all products on the amazon website. Check the same item on the competition like startech same results mate. Time to move on!

Also a product like this either of club3d or any other company is mainly depended of the source. Like a user said before u have a very negative approach. I tend to agree there.

you guys took this personally I think, If i am negative, its not against you guys, its against Club 3d as a company, so they can be aware that selling crap is not without consequences. ( if you Mr Clubbie says that 62 % of 5 stars is enough, then that says a lot of the company too ) I could not care less of your opinion on my negativity btw. If that makes your life easier you can always ban me from this forum Otherwise you need to be ready to take issues reports from customers.

Let me queto you here:

( if you Mr Clubbie says that 62 % of 5 stars is enough, then that says a lot of the company too )

this is personal!

To be clear, Im just an enthousiat like yourself, i do not speak for club3d,  my opinion, is just an opinion like the ones you state.

Happy Easter

I would not bet on that. That vid proves nothing.

We can at least say that the lg sm9000 ( that has hdmi2.1 port ) has some sort of full 4k 120Hz available , using a true hdmi 2.1 cable. I still dont understand exactly how but it could then also work on a lg c9 / b9 etc.   I m receiving the cable soon and will update here if it works

Found some confirmation that the 75SM9000PLA TV will do 4k120 or 8k60, although it doesn’t say color format. But obviously it supports HDMI2.1.

..I would also assume that the EDID of this TV publishes the latest modes. Maybe this test’s graphics drivers could not interpret the latest video modes. It should be able to present them to the list of resolutions. Then again, HDMI2.1 does some kind of linktraining like Displayport, and they may have agreed to talk at a lower speed. Unfortunately these details are not well communicated to the end users.

Hmm.. Then again.. They seem to use this manual for all types. Note that the list of resolutions say “(8k models only)” for the 4k120.. Apparently the 4k monitors in that series may not do HDMI2.1.

One test that I achieved on my lg sm9000 4k 55  is to create a custom 120hz 4k.  and when I play that from a usb stick, the tv is able to show the video perfectly fine.  I can see the logo 3840*2160  120hz in the video description.  So my bet is that the sm 9000 has true hdmi 2.1 capabilities and will work well with the next gen hdmi 2.1 gpus. 

What I mean is that we know for sure that the tv is physicaly able to display 4k at 120 Hz   , this plus the recent found that we can get the sm9000 4k at 120 with a proper hdmi 2.1 cable.

Please tell how you know this for sure. PC’s can easily do virtual 4k120Hz, but send something else over the cable. Also, please do the 4:4:4 chroma test.

PS:I’m still digging into this. Currently I am here

HERE

I am sure because I can recognize a 4k 120 vs a QHD 120 or 4k 60 easily.  The tv can display 4k 120 using the usb input, which means that the Alpha processor inside is made to display 4k at 60 or 120 . I have yet to try and include the 4.4.4 chroma test in a 4k 120 fps video, ( ill try soon here and update )

Thanks.. This got me curious. According to my link above regarding HFR:

• LG OLED TV models in the W9, E9, C9 Series and LG NanoCell LED-LCD TVs in 9500 and 9000 Series will support 4K HFR over both HDMI 2.1 and USB inputs. Models in the NanoCell 8600 Series will support HFR only through USB input. This is to be added via a forthcoming firmware update.

This may mean that the manual is not correct, and maybe that the firmware prevents the 4k120 from appearing in the EDID (CEA) data. Maybe it will be fixed in a future manual and firmware release.

Just want to clarify. You cannot set a custom resolution if the monitor doesn’t accept the signal. The fact that he was able to set 4k 120hz is saying something. Currently without the right cable, I can confirm no support above 60hz.

The only reason I think that he was able to achieve this is that the cable he got is a true hdmi 2.1 48 gbps cable.   I bought a few 2.1 cables last year, but realized that they are not certified etc and so it was probably a way to make easy money for manufacturer since most people would not be able to find out if they work.   But what makes no sense is that The Tv should already accept 4k 120 at compressed 4.2.0 chroma since its bellow the 18 gbps hdmi 2.0 capacity. ( The samsung q90r is doing 4k120 4.2.0 without hassle )  lots of things still unclear to me. I am still very surprised with the video.

@net200777 the TV hardware may very well support more than the computer thinks. The EDID data presented by the TV to the PC, contains a list of formats that the PC will present. Normally the base EDID block (128 first bytes) present the “PC” resolutions, while the “TV” resolutions originate from a the CEA extension block of the EDID (normally the next 128 bytes, but can be anywhere if there are more blocks, like DisplayID extensions). The EDID data can present too few, or even too many resolutions (but that would be a bug). If they decided not to list 4k120, it could be either because they didn’t want to, or because the hardware can’t handle it. Sometimes you can read the active resolution in some TV information GUI to confirm, but the visual 1:1 pixel test and the chroma test is the best method to get this confirmed. I also usually test if the TV is able to display outer pixels too. Old tv’s had lot of problems there. I have seen a lot of funny artifacts during my time in this business.

@net200777 I found out the trick from the guys video, and unfortunately its not true 4k 120 hz.   There is a way with windows to create a custom active resolution of qhd 120  using the 4k layout.  

I dont know if the guy from the video did this little trick to sell more cables or have a relation with the cable company, but he got us quite bad.

In his video he is using windows at about 225% so its helping windows not to look so blurry, but in reality, its not looking sharp at all.   I did that on my computer and it displays 4k 120hz in my nvcp but sharpness is terrible compared to true 4k.

I can confirm even with the cable tested LG C9 does not accept anything over 60hz. lol.. It kind of sounds like that.. with a full minute and half talking about the cable.

I want to join in on this discussion to give my 2 cents. I think its not possible to force 4K 120hz over a SM9000 atm. The only TVs who can do 4K 120hz (but only with 4:2:0) are the Samsung Q90R / Samsung 2020 QLED models and the LG CX. And thats because they have added software to let 4K 120hz pass over HDMI 2.0 devices (again only 4:2:0). The C9 as you might know cant receive 4K 120hz atm because they want to sell the new model. Same with the SM9000 – these TVs will not work with 4K 120hz until we have real 2.1 output devices. Only option who might work is the discussed DP 1.4 adapter but i doubt that thing is coming.

Fear not my graphic friends. Amphere is on the way. 

Make sure to order the same as the video, they are plenty of fake hdmi 2.1 around and this one seems to be ok based on the reviews online.

Confirmed

Please post an official spec link confirming the port capabilities of the monitors you look at.

on lg.com  you can see that :

Looks clear at first sight. I wish it was more clear, like in a spec sheet explaining what ports could do what.

Found this note:

4) Only applied to above SM90.

Even that is weak specs. What ports? All? One? Some?

That seems to do it in the wrong direction..

Good one hopefully available for delivery soon, @ost what makes you think it is in the wrong direction,   it looks correct,   output from dp 1.4 gpu, then to a hdmi 2.1 cable.

Hi,

I went over this thread again.

why would HDMI2.1 to DP1.4 would be interesting, since Tv,s do not have a DP output/input. there are also (currently) no monitors that can take HDMI2.1. No video cards that do HDMI2.1 (so far in the market).

if you want to use your TV at 4K@120hz then the CAC-1085 mentioned above should be more then enough in bandwith. Perfect use for the SM90 mentioned above

so again please explain to me why HDMI2.1 to DP1.4 would be interesting? please name a current example and not a possible future maybe will be market.

The LG OLED C9 can do 4k 120hz. But over HDMI 2.0 there is no 120 Hz 4k support. Dp 1.4 on the other Side can do 4k 120hz. The LG OLED provides 4k 120 Hz over HDMI 2.1 . So If we use a dp 1.4 to HDMI 2.1 Adapter we could get 120hz in 4k.

@BricoDepot1987 This thread is about HDMI2.1 to DP1.4. Since DP1.4 has a bit more bandwidth than HDMI2.0, and DP1.4 monitors have been existing for a while, this is about filling that bandwidth from a HDMI2.1 source.

@ost yes indeed I was mistaken    However, I think that Dp 1.4 to hdmi 2.1  will find more customers . And that many most people will use this cable to drive their c9 or sm9000 at 4k 120 from the dp 1.4 gpu output. May I know why would you need a hdmi 2.1 to dp 1.4 ?

@CLUBBIE  Be aware, DP1.4 can only do 4k120 with DSC [compression]. If you want to be on top of it all, you need HDMI2.1 on both ends, at least until (if ever) DP2.0 will appear.. All other adaptor cases are just cases to get a little more out of your existing gear, be it source or sink.

Clubbie, the Wasabi Mango 43″ panel has a DP 1.4 input. I’ve tested it for a short time @ 4k120hz with 2 x 1080ti’s. (Glorious)

Many gamers are starting get savy and not spend $2000 on a 27″ monitor. The c9 for example has HDMI 2.1 ports.

both announcements  from Club 3d and realtek were talking about a dp 1.4 to hdmi 2.1 and not the opposite, inst that just a typo mistake from net200777 ?

I’ve been talking back and forth with this company for some time now, it’s for real.

(Btw that was 4k 120hz 10bit.) Yes, like OST said, ultimately it will be better to have the full bandwidth on both sides because DP 1.4 will be the limiting factor in bandwidth.

@BricoDepot1987 First, I work in the business and want to follow the trends. I know a company called Lontium is working on a chip that can do this stuff, but corona got it delayed. They already have a chip from HDMI2.0 to DP1.2 wich is probably the one used in CAC-1331 and other HDMI2.0 to DP1.2 converter devices. This is a power hungry chip that needs usb power. I was hoping the next chip will consume a little less power.

I really find it hard to believe even a tiny fraction of the people who’ve responded to this thread did so with the understanding that we were all talking about an adapter that can take an HDMI 2.1 source and convert it to a DisplayPort 1.4 input. Not least because there currently are no HDMI 2.1 sources, or at least none that are capable of outputting 4K @ 120hz, which is the only reason I can think of why someone might want such an adapter. 

There is however a significant need for an adapter that can take a DisplayPort 1.4 output and convert it to an HDMI 2.1 input. Mainly because of the proliferation of LG OLED TVs with HDMI 2.1 inputs and graphics cards that include DisplayPort 1.4 outputs but lack HDMI 2.1.

However, I didn’t start this thread, and if I misunderstood the original poster’s intent than I apologize, and I’ll post what I wrote somewhere else instead. 

I couldn’t think of anyone that’s here that would not be using it for anything else. But you’ll have to ask OP

On a Dutch web-shop I found a listing of CAC-1085 with an expected availability of 15-may. I really hope this is true so I can get one this weekend.

There are also multiple listings on other Dutch web-shops but with an unknown availability.

In another thread, someone (I believe a Club3D employee) was saying they’re aiming for June to release the adapter. But heck I’d love to believe it might be out in just a few days! I’ve been waiting for this for years now.

Another possibility is they might make it available for purchase on 15 May, but not start shipping them out until June.

Hi,

I went over this thread again.

why would HDMI2.1 to DP1.4 would be interesting, since Tv,s do not have a DP output/input. there are also (currently) no monitors that can take HDMI2.1. No video cards that do HDMI2.1 (so far in the market).

if you want to use your TV at 4K@120hz then the CAC-1085 mentioned above should be more then enough in bandwith. Perfect use for the SM90 mentioned above

so again please explain to me why HDMI2.1 to DP1.4 would be interesting? please name a current example and not a possible future maybe will be market.

 

From CLUBBIE

Hello,

I have an 34in LG ultrawide 3440 X 1440p monitor with 144hz (LG 34GK950F-B.

I would like to connect the Xbox series X to this monitor and get 120-144hz on the monitor. There is a DP 1.4 and two HDMI 2.0 ports.

Do you think I will be able to go from HDMI 2.1 from the XBOX to the DP 1.4 on the monitor?

Do you think we will get cables that will allow us to do this?

The only issue I am seeing in my research is that DP 1.4 might not carry sound. Is this true? HDMI does carry sound.

Yeah, it’s easy to miss because they give the adapter in the middle of the page much more visibility, and kind of shunt the 4K 120hz one off to the side with a smaller image. I didn’t even notice it until I looked at the page a second time. And it’s weird because you’d think they want to advertise this new adapter more prominently, given that so many people have been asking for it.

Maybe they are simply not aware that so many people are waiting for this, would be good to know an average number, but basically anybody connecting a LG C9 B9 or  SM9000 series to a computer is looking for an adapter like this one. I know many friends and friends of friends with the C9 waiting.

Bricodepot the CAC-1085 is that adapter.

The CAC-1085 gives you the possibility to do 4k120HZ on your LG C9 B9 and SM9000.

so do yourself and all your friends a favor and let them know the CAC-1085 will be available soon

I have yet to be convinced that the SM9000 can do 4k120 4:4:4. We also know DP1.4 can’t do it unless doing a small amount of compression. I’d like to see any proof of any screens doing real 4k120 4:4:4 with adapters, in either direction.

It kind of infers that they are working on a better version of this adapter already and that the second version will include VRR/G-sync/Freesync.

Better view of the chat:

Club-3d updated there page for CAC-1085 and it looks like it will indeed not support VRR/G-sync/Freesync.

For a product that was supposed to be released in Q1, they sure are taking their sweet time.From net200777

It was supposed to be released last November.

1920×1080@165Hz is doable with HDMI2.0 to DP1.2 adapters, provided their firmware will let it through. Its only roughly 400(CVTrb)/525(CVT)Mpixel/sec rate.