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Mac mini: 4k @ 120hz?
- Thread starter Flow91
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Going back to this, has anyone attempted to email support at Club 3D about the DCDP register issue? They have put out updated firmware before and I'm hopeful they may be able to figure it out
I don't think it's Club-3d that makes the firmwares. It's probably Realtek. I don't think they would make a firmware change just because macOS doesn't handle the adapter properly.
The thing to do is to make a patch in macOS to ignore the DPCD registers or to modify the bytes that are read from the DPCD.
I'm trying to reach out to Hyper (feel free to boost it)
They have a history of being first to release awesome Mac-centric accessories and just won a CES Award for their new TB4 dock.
They have a history of being first to release awesome Mac-centric accessories and just won a CES Award for their new TB4 dock.
I used the Club 3D CAC-1567, which is 8k 60 Hz with Mac Mini 2018, I can do 4k @ 72 Hz, seems like the iGPU is limiting the max refresh, dropping to less resolution allows 120 Hz. My monitor should support VRR but there was no option for that either.
iGPU is limited to DisplayPort 1.2 so there's only HBR2 link rate and no DSC. Maybe it can do 4:2:2. In that case the max pixel clock would be ≈1080MHz which maybe could do 4K120 with a CVT-RB2 timing.
Without 4:2:2, I would expect more than 72Hz - something closer to 81Hz assuming 8bpc and CVT-RB2 timing or 80Hz using CVT-RB timing.
Hey, life time Windows user here, I switched to Linux a couple of months ago but needed Adobe suite compatibility, so I bought my very first Macbook Pro and is on his way. So I'm going for MacOS, thing is... the more I read, the more I find those stupid things that this OS does: impossible to maximaze a window only fullscreen, only 1 dock no matter how many screen, aaand no 4K@120hz...
You guys probably are more comfortable with Apple politics, do you think that's something that will come later on? Do we have signs that it might or should coming? I have the great opportunity to get my hands on the C1 for "only" 999€, which is an amazing price considering the other 27-32" 4k monitor, plus it gives a solution to the super dumb "one dock only" behaviour but if I can't ever get 120hz working on my new machine... well... it's a no.
Thanks all of you for this thread, it's really informative.
You guys probably are more comfortable with Apple politics, do you think that's something that will come later on? Do we have signs that it might or should coming? I have the great opportunity to get my hands on the C1 for "only" 999€, which is an amazing price considering the other 27-32" 4k monitor, plus it gives a solution to the super dumb "one dock only" behaviour but if I can't ever get 120hz working on my new machine... well... it's a no.
Thanks all of you for this thread, it's really informative.
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I'd stick to monitors with a Displayport or USB-C connection for now.
We most likely will get no change to the situation until Apple starts supplying a proper HDMI 2.1 port (and not just some "HDMI 2.1 but with 2.0 capabilities" bollocks either) on their devices and I doubt even the upcoming Mac Minis this year will have that.
I have a 14" Pro and just came across this thread as I was thinking about buying the 42" LG C2 as a monitor. Are you saying that you can output 4K120 via TB4/USB4?
That plus attaining $3 TRILLION market value or sitting on billions in cash. I mean come on people. Windows supported this 4 years ago. I need to quit buying this junk.
These people have brought 120hz and HDR to telephones. How is there not demand? How would they not know it is needed in 2021 products? It’s just how they look at the Mac user these days and what the average Mac user cares about. “Does the apple logo on the back glow bright enough?” This is the aptitude of the current Mac user. The product flies off the shelves getting bought up by such users.
We need to get their attention on basic 2020 technology? They have deployed on telephones.
I think if there is not demand then it speaks volumes about the kind of people that currently buy their stuff. It used to be creative folk with actual jobs. Now it seems like the products are for unemployed folk who need fashion accessories to show off at the coffee shop. That is MacOS today. All those creatives with jobs and actual tasks switched to Windows a long time ago.
That’s a good idea. I thought of doing something similar using the Hdfury Vrroom. I hope it works.
Edit:
Sorry. Smarter people than me have already tried.
The 2nd gen Apple TV has a proper hdmi 2.1 port. Does it work? No. Why? Software. So much for the theory that releasing HDMI 2.1 hardware means it will actually work. So now we have to wait for new hardware and then wait more for them to actually enable it.
Also at this point I wonder what would happen if Windows for ARM were installed on this thing.
As it stands I guess I’ll just consider it a HDMI 2.0 device and just put it, the Apple TV and the Nintendo switch on a hdmi 2.0 switcher. Birds of a feather these devices.
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Does not. Search for "5 comments" at https://www.ifixit.com/Teardown/Apple+TV+4K+2021+Teardown/142845
HDMI is the name of the spec. 2.1 is the version of the spec. The version number does not indicate what HDMI features are available to a specific HDMI product.
Basically, you can call anything HDMI 2.1 even if it only supports HDMI 2.0 features.
Wow thank you for that. This whole time a bunch of people and I were waiting for 120Hz and VRR.
So all I got for $179 was eARC. I used it with HomePods for a while. I don’t see what else it could be used for. I feel pretty ripped off.
I guess they are riding on the name now and increasing margins and sales is the primary aim. I will have to adapt and buy fewer of their products.
Edit: Also your information helped me rethink my system. Now I can just connect it a hdmi 2.0 switch and it simplifies my system a lot. I doubt it will ever support FRL. I guess it’s fine as there is really no hdmi 2.1 feature that I need from it.
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I have MacBook Pro M1 2021 TB4 and LG OLED TV HDMI 2.1.
As I understood there is restriction for 4k 120hz output and limited to 60hz in MacOS when HDMI on another side.
I wonder will it work 4k 120hz with dongle TypeC -> DP 1.4 female + DP 1.4 -> HDMI 2.1 cable ?
As I understood there is restriction for 4k 120hz output and limited to 60hz in MacOS when HDMI on another side.
I wonder will it work 4k 120hz with dongle TypeC -> DP 1.4 female + DP 1.4 -> HDMI 2.1 cable ?
Attachments
Just found this:
www.synaptics.com
Hopefully this irons out bugs from the VMM6100 and opens the way for more HDMI 2.1 adapters and source devices? I’m guessing it will still be a while before actual products come out though. The RealTek RTD2173 based offerings also seem underwhelming and not widely utilized.
Edit: Ok this just sounds like a rebranding, as the VMM7100 was announced back in July. That means manufacturers have already had 6 months to get products out right? ?
Press Release | Synaptics Introduces Spyder Family of Video Protocol Converters to Seamlessly Connect USB Type-C Devices to HDMI 2.1 High-Performance Displays | Synaptics
CES® 2022, Las Vegas, NV, January 6, 2022 – Synaptics Incorporated (Nasdaq: SYNA), today announced the Spyder family, the world’s first single-chip DisplayPort/USB Type-C-to-HDMI 2.1 and HDMI 2.0 video protocol converters with Power Delivery and Billboard features on chip.
Hopefully this irons out bugs from the VMM6100 and opens the way for more HDMI 2.1 adapters and source devices? I’m guessing it will still be a while before actual products come out though. The RealTek RTD2173 based offerings also seem underwhelming and not widely utilized.
Edit: Ok this just sounds like a rebranding, as the VMM7100 was announced back in July. That means manufacturers have already had 6 months to get products out right? ?
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No it does not. I tried this with my 2019 Intel MBP 16" and tested the CableMatters USB-C to DP 1.4 -> Club3D DP 1.4 -> HDMI 2.1 adapters. This setup worked perfectly from the USB-C port on my desktop PC's 2080 Ti but on the MBP it worked the same as USB-C to HDMI 2.1 adapters/cables, namely you only get HDMI 2.0 performance.
Thank you for your answer. Helped me a lot. So The only way is to wait for MacOS HDMI 2.1 support atm.
Btw, its cool that you can connect 2080Ti without upgrading to 3rd series and have a HDMI 2.1 in your setup.
Have been playing around with and trying to get my head around what's possible EDID wise, haven't had as much time on it as I wanted to. Dr HDMI guys are helpful but I'm struggling a little to communicate what I need
I wonder if this would be a possibility:
You would need two DisplayPort cables (one extension, male to female and one male to male) to sacrifice for the experiment. AUXP and AUXN and HPD are the only bidirectional pins in the system.
Cut open one DisplayPort end of both cables. Identify the AUXP and AUXN as well as the HPD pin.
Disconnect the wires of the M-F cable. Connect them to the AUXP and AUXN pins of the other cable, and do the same for HPD.
Plug the M end of the M to F into the computer, and the DP1.4 to HDMI 2.1 adapter to the F end.
Plug the unmodified M end of the other cable into a DP monitor that supports 4K 120Hz.
In theory, the high speed data links are uni-directional so shouldn't matter. The idea is that we are tricking the Mac into thinking it's handshaking with the DP monitor, but actually outputting the DP 1.4 signal to the protocol converter.
The only question is whether the protocol converter will "boot" or accept a signal without handshaking. This is easy to check. Simply use some precisely aligned kapton tape or tape in general to isolate those pins. Plug the protocol converter into a PC. Manually set up the display and see if it works.
You would need two DisplayPort cables (one extension, male to female and one male to male) to sacrifice for the experiment. AUXP and AUXN and HPD are the only bidirectional pins in the system.
Cut open one DisplayPort end of both cables. Identify the AUXP and AUXN as well as the HPD pin.
Disconnect the wires of the M-F cable. Connect them to the AUXP and AUXN pins of the other cable, and do the same for HPD.
Plug the M end of the M to F into the computer, and the DP1.4 to HDMI 2.1 adapter to the F end.
Plug the unmodified M end of the other cable into a DP monitor that supports 4K 120Hz.
In theory, the high speed data links are uni-directional so shouldn't matter. The idea is that we are tricking the Mac into thinking it's handshaking with the DP monitor, but actually outputting the DP 1.4 signal to the protocol converter.
The only question is whether the protocol converter will "boot" or accept a signal without handshaking. This is easy to check. Simply use some precisely aligned kapton tape or tape in general to isolate those pins. Plug the protocol converter into a PC. Manually set up the display and see if it works.