Mac mini: 4k @ 120hz?

[waydabber]

Today, I tried with both my 2021 16" base model MBP, and my 2022 base Mac Studio with M1 Max.

Same YCBCR 4:2:2 8b 4L10 for both. Isn't this the most/best we can expect?

Seems like at least one made it RGB 10bits which is superior. Note: connecting through an AV receiver might further complicate things, you are actually interacting with the EDID of the receiver then.

 

[waydabber]

That looks Perfect ! RGB 10b with 4k@120hz ! Can u please upload your EDID here ?

He already did, you can copy the base64 encoded EDID from his post (see the screenshot, macOS allows you to quickly convert it to text) and just convert it to a binary file with some online tool.

 

[Zorast]

Let me get back to you on that.

Edit: how do I get that info on my LG C1?

Press fast many times the green button then it will appear.

 

[Zorast]

Is it possible to do 4:4:4 at lower frame rates (e.g. 4K@96Hz) using this EDID method?

Losing a few frames to get better colours seems like a good compromise.

I did test 100hz but it won't. 4:2:2 or 4:2:0 it not good for Desktop usage. We have to go RGB or 4:4:4.

I also do not use 4k@120hz now because with my USB 4 Dock it only runs with 4:2:2. Iam using RGB 4k@60hz. On Desktop usage RGB or 4:4:4 is a must have.

 

[Zorast]

He already did, you can copy the base64 encoded EDID from his post (see the screenshot, macOS allows you to quickly convert it to text) and just convert it to a binary file with some online tool.

Tommorow I will make some more test. Hopefully one of my ordered Adapters or Stations will work!

Iam also in contact with cable matters support about this ! Iam 100% sure they can make a special Adapter or Firmware that will enable this feature for Mac users!

 

[BeatCrazy]

Seems like at least one made it RGB 10bits which is superior. Note: connecting through an AV receiver might further complicate things, you are actually interacting with the EDID of the receiver then.

Ah good point... I forgot that technically I'm using the EDID of my receiver/processor, which may not support 10bits.

 

[Technotron]

Tommorow I will make some more test. Hopefully one of my ordered Adapters or Stations will work!

Iam also in contact with cable matters support about this ! Iam 100% sure they can make a special Adapter order Firmware that will enable this feature for Mac users!

Sounds great, now that we know it can be achieved. A PnP solution would be amazing!

 

[waydabber]

Ah good point... I forgot that technically I'm using the EDID of my receiver/processor, which may not support 10bits. View attachment 2157597

The receiver should support 10 bits as it is HDR compatible.

 

[YoYoMa]

For those of you having troube getting to 444 120hz like Alan, are you ensuring that your LG input is set to PC mode?

 

[yukkerz]

I have this dock and tried the tutorial with no luck. Any ideas or am I better off buying a different cable and trying? I would love to get 4k@120hz on my lg c1 from my mb air m2.

 

[Djlild7hina]

^ Yup my input is set to PC mode and Ultra HD colors are enabled. Still getting 422 8bit on my c9 with the cable matters usb c to hdmi adapter. Might try getting another hdmi cable

 

[Zorast]

For those of you having troube getting to 444 120hz like Alan, are you ensuring that your LG input is set to PC mode?

yes yes yes

 

[Technotron]

Anyone find a way to make display settings stick after disconnecting your display cable? It's more of an inconvenience than anything else, but would be cool if there was a way.

 

[Zorast]

Anyone find a way to make display settings stick after disconnecting your display cable? It's more of an inconvenience than anything else, but would be cool if there was a way.

 

[Technotron]

I did do that, but it still resets to 60Hz every time... I will double-check now.

 

[Zorast]

I did do that, but it still resets to 60Hz every time... I will double-check now.

Let @stevemr123 this know, it can be an bug

 

[Technotron]

Perhaps I am missing something in the edited file itself? I only changed it to dP 1.4 as per the instructions, but perhaps there are other settings?

 

[waydabber]

If it resets to 60Hz after wake then it might be that the display disconnects during sleep, wakes with the old EDID, macOS sets the mode accordingly and stores the 60Hz mode in the display layout and even though BD reapplies the EDID as it detects the display not running the new EDID, macOS will still use the 60Hz display mode as that is the last stored mode for the display layout.

You can get around this by changing the display identifiers in the EDID (you can change the serial number or the model number for example) - with this the OS will recognize the display with the updated EDID as an entirely different display and will not associate the 60Hz mode to it in the display layout (so when the new EDID is loaded, it will be as the old display is disconnected and a new display is connected - the two identities will have different UUIDs). BUT: this will mean that BetterDisplay will also treat the display as a separate display so you might have trouble reverting and won't see the uploaded EDID under settings as well as that belongs to the "original" display. So you'll have to wrap your head around the situation, thinking about your single physical display as it would have two identities.

 

[Technotron]

Steve you are amazing, thank you - that did the trick!

I can't believe I was about to sell my MBP 14 M1 for an M2 just to be able to use the full potential of my LG C1... I was seriously considering it when I saw stumbled upon this thread. THANK YOU!

Edit: I should also add that I bought a Pro license for BetterDisplay the day I found out about this (and thus joined this community). Amazing work!

 

[magbarn]

I was messing around with my betterdisplay settings and now I get a black screen on my LG whatever settings I try. I even deleted all the modded EDID files and deleted and reinstalled betterdisplay with reboots in between. How do I make everything stock with better display?

 

[PatricioooAG]

I was messing around with my betterdisplay settings and now I get a black screen on my LG whatever settings I try. I even deleted all the modded EDID files and deleted and reinstalled betterdisplay with reboots in between. How do I make everything stock with better display?

Sometime I need unplug the C2.

 

[magbarn]

Sometime I need unplug the C2.

Tried it multiple times. No dice.

 

[Zorast]

The new Cable matters does not work also it has an VIA Chip installed !!
It show also with TM so its HDMI 2.0 !

Cable Matters 48Gbps USB C auf HDMI 2.1 Adapter unterstützt 4K@120Hz/8K@60Hz (DSC erforderlich) HDR 100W PD, Mit Thunderbolt 4/3 kompatibel -Die maximale Auflösung auf jedem MacBook beträgt 4K@60Hz

Upgrade auf HDMI 2.1 oder zukunftssicher Ihr Setup mit dem Cable Matters USB-C-zu-HDMI-2.1-Adapter; HDMI-auf-USB-C-Adapter kombiniert den neuesten HDMI 2.1-Standard mit der Vielseitigkeit von USB-...

www.amazon.de

 

[Zorast]

Ok after testing another 2 Adapter( Kabel direkt 8k and a TB4 Station with HDMI 2.1) where I think it can work, I got some new informations. There's a Notification coming on Kabel direkt 8k with vmm7100 when want to use Higher Frequencies. So probably there another reason why only a Mac Studio can run 4:4:4 ?? @stevemr123 is there a limitation in USB Power that an M1 can output ? Is there a difference with a Mac Studio so an Adapter Chip can not perform 100% ?

With the TB4 Station I can not get 120hz, it want to run but ending in a loop of green/black flickering and want to put out 4:2:0 what is not good enough at all.

KabelDirekt – 8K USB C auf HDMI 2.1 Adapter Kabel für eSport-taugliche Leistung mit bruchfesten Metallsteckern – 1,8 m (überträgt 8K/60Hz und 4K/120Hz von Gaming-Laptops auf Fernseher oder Monitore)

KabelDirekt – 8K USB C auf HDMI 2.1 Adapter Kabel für eSport-taugliche Leistung mit bruchfesten Metallsteckern – 1,8 m (überträgt 8K/60Hz und 4K/120Hz von Gaming-Laptops auf Fernseher oder Monitore)

www.amazon.de

KabelDirekt – 8K USB C auf HDMI 2.1 Adapter Kabel für eSport-taugliche Leistung mit bruchfesten Metallsteckern – 1,8 m (überträgt 8K/60Hz und 4K/120Hz von Gaming-Laptops auf Fernseher oder Monitore)

KabelDirekt – 8K USB C auf HDMI 2.1 Adapter Kabel für eSport-taugliche Leistung mit bruchfesten Metallsteckern – 1,8 m (überträgt 8K/60Hz und 4K/120Hz von Gaming-Laptops auf Fernseher oder Monitore)

www.amazon.de

UPDATE:

After Updating Firmware on VMM7100 KabelDirekt get the Same worst result like on Cablematters with VMM7100. It switching to HDMI 2.0

 

[Zorast]

I made a new test with this>

HDMI cable

Amazon Basics HDMI Cable, 48Gbps High-Speed, 8K@60Hz, 4K@120Hz, Gold-Plated Plugs, Ethernet Ready, 6 Foot, Black

An Amazon Brand.

www.amazon.com

Last purchased Aug 1, 2022

Cable Matters Adapter

Cable Matters 48Gbps USB C to HDMI 2.1 Adapter, Support 8K 60Hz / 4K 240Hz HDR, Thunderbolt 4 to HDMI 2.1, HDMI 2.1 to USB C Adapter, Compatible with iPhone 16/15 - Max Resolution on Mac is 4K@60Hz

Cable Matters 48Gbps USB C to HDMI 2.1 Adapter, Support 8K 60Hz / 4K 240Hz HDR, Thunderbolt 4 to HDMI 2.1, HDMI 2.1 to USB C Adapter, Compatible with iPhone 16/15 - Max Resolution on Mac is 4K@60Hz

www.amazon.com

Last purchased Jul 12, 2021
No firmware updated

View attachment 2157299

Macbook pro m1 Max

View attachment 2157301

LG OLED C1

View attachment 2157306

Exported, Uploaded and applied with Base64 checked

View attachment 2157307

View attachment 2157300

could it be some configuration or calibration on the tv ? maybe?

Can u please go to System Information and show us which Chip version ure Adapter has? Like this: