DP/USB-C/Thunderbolt 3/4 to HDMI 2.1 4k@120hz RGB4:4:4 10b HDR with Apple Silicon M1/M2/M3 now possible !

[Zorast]

Awesome. Thank you for the help. I'll give it a go.

And yeah I'm not sure what the dock would support as it's a thunderbolt 3 dock... I was planning on having a 4k 120hz and a 1440p 120hz. Not sure the limitations there though lol.

But I guess I was also wondering if the mac itself (no docking station) would work doing this with multiple monitors. Say I use this trick for 4k120hz with one of the thunderbolt ports... Could I also use the hdmi port at the same time for a second monitor? Or what about a thunderbolt to 4k 60 monitor?

Iam using an TB4 Dock where i can reach 1 x 4k@120hz RGB 10bit HDR and another Display with 1x 4k@60hz RGB 10bit

 

[Zorast]

201388-GRY is the model I have, its the 6100, I just changed the EDID and it worked right away.

U have to check if ure on RGB 10bit. This is not possible(untill now) without the Firmware i upload to the OP.

 

[Zorast]

My solution will use:
Mac Studio M1 Pro ==> Cable Matters 201388 adapter (w/chip VMM7100) ==> 8K certified HDMI cable ==> LG OLED 55" C2 Y2022 television HDMI 2.1 port. I am wanted 4K120Hz resolution.

I ordered the Cable Matters adapter 201388-GRY expecting CHIP VMM6100. Instead, the upgrade tool informed me that it is CHIP VMM7100. The Cable Matters website shows the highest firmware version to be 7.02.120 which came on my adapter.

@AironMan provided a file named "Spyder_fw_USBC_CM_7.02.130forMac.fullrom" and suggested upgrading to version 7.02.130. Since this file is not located on the Cable Matters website, where did it come from and is it safe to use on my adapter?

I'm new at this and am a bit confused as how to use your instructions with this firmware file. Is it possible for you to provide step by step instructions customized for those of us that have the VMM7100 chip? I'm still not clear whether this adapter with this chip will provide the 4K@120Hz to my Mac Studio.

-------------
Here's some additional information that I found:
(1) Jun-28-2022 Announcement. Synaptics have recently released VMM7100, a new single chip USB-C to HDMI 2.1 bvideo interface. [So I'm guessing that this chip supercedes the VMM6100]
(2) The Cable Matters kb posted on Sep 21, 2022 a firmware update for Product 201388-A [which must have superceded 201388-GRY]. This shows that the product now uses the VMM7100 chip and the latest version is 7.02.120.

I am concerned about flashing my adapter to @AironMan 's provided 7.02.130 firmware version without knowing where it came from. I can't find it on the Anker website.

Also, must I still follow the other instructions to use BetterDisplay and the EDID editor?

This is a problem only u have with. So when u dont want to flash then dont flash... read the OP plz.

 

[Zorast]

I started a vote to see how many get working this tweak, feel free to vote too

 

[IMHERETOSTAY]

If anyone is in Canada and is struggling to flash his adapter, I would be willing to help. I'm in Qc.

 

[kooki2]

Hello
I got VMM6100 HDMI adaptor and uploaded EDID to get 4K 120hz but only YCBCR422 8b 4L10 on my 42C2
I tried to force RGB output on Mac, update adaptor firmware and apply EDID multiple times but can get RGB 10 bit 4:4:4 chroma (and also other settings on my 42C2 such as PC mode)
What should i do to get RGB or at least YCBCR444???

 

[Sebastianlw]

Any chance that i can get a rgb10bit 4k 120hz via a dp1.4 tohdmi2.1 adapter? I bought a moshou vmm6100 dp1.4to hdmi2.1 using the firmware only get rgb104l6 60hz on macos，but rgb10 120hz on windows(hacintosh i7 and amd rx6600).maybe firmware should be edit to get rgb10 120hz,but i don't know how.

 

[Zorast]

@Sebastianlw @kooki2

For those that not work correctly, plz send information about ure Adapter, screenshot from BetterDisplay Display informations (First 3 Sections), VmmDPTool Firmware Info and upload ure original and modified EDID plz. Thanks.

And if another guys can help here in support i will be happy. I have no that mutch time to do that alone. Thanks!

 

[Zorast]

Any chance that i can get a rgb10bit 4k 120hz via a dp1.4 tohdmi2.1 adapter? I bought a moshou vmm6100 dp1.4to hdmi2.1 using the firmware only get rgb104l6 60hz on macos，but rgb10 120hz on windows(hacintosh i7 and amd rx6600).maybe firmware should be edit to get rgb10 120hz,but i don't know how.

This is a new scenario, usually we use an USB-C Adapter.

 

[Sebastianlw]

This is a new scenario, usually we use an USB-C Adapter.

Thanks for ur wonderful job, that I have already made my m1 MacBook air work with rgb10 120hz using MOShou c-008 adapter. And I have another desktop using i7 13600kf and amd rx6600, which installed windows11 and ventura 13.2.1. And when use a hdmi2.1 cable i can only get rgb8bit 60hz or ycbcr 420 120hz on macos，cuz Apple only receive hdmi2.0 signal otherwise the Windows can run as rgb10 120hz hdr full hdmi2.1. So i bought a moshou c-002 adapter which is dp1.4 to hdmi2.1 and also vmm6100 chip. I followed the step as the post said, renew the firmware ，edit the edid bin, and at last I canonly get 4k ycbcr420 12bit hdr or 4k rgb12bit 60hz hdr on macos. While using the adapter i can get full 4k 120hz rgb10bit hdr on Windows.my monitor is lgc2 42. I think the reason is usb c has 40gb while the dp1.4 has only32gb broadwide so the firmware should different, but since Windows11 can run full rgb10 120hz using the dp1.4 adapter ，the broadwide is enough for dp1.4 while the dsc is on if the firmware can be edit correctly on macos i guess?

 

[kooki2]

This is a new scenario, usually we use an USB-C Adapter.

@Sebastianlw @kooki2

For those that not work correctly, plz send information about ure Adapter, screenshot from BetterDisplay Display informations (First 3 Sections), VmmDPTool Firmware Info and upload ure original and modified EDID plz. Thanks.

And if another guys can help here in support i will be happy. I have no that mutch time to do that alone. Thanks!

Please refer to captured images i uploaded, not sure what are first 3 sections you are asking
I'm using Cable Matters USB-C to 8K HDMI adaptor with VMM6100 model, i've updated firmware with this posting
Mac mini: 4k @ 120hz? | Page 42 | MacRumors Forums

 

[Zorast]

Please refer to captured images i uploaded, not sure what are first 3 sections you are asking
I'm using Cable Matters USB-C to 8K HDMI adaptor with VMM6100 model, i've updated firmware with this posting
Mac mini: 4k @ 120hz? | Page 42 | MacRumors Forums
View attachment 2171304 View attachment 2171305

Which Adapter u are using, i need the Model Number. Do u have an Link where u buy it ?

 

[Zorast]

Thanks for ur wonderful job, that I have already made my m1 MacBook air work with rgb10 120hz using MOShou c-008 adapter. And I have another desktop using i7 13600kf and amd rx6600, which installed windows11 and ventura 13.2.1. And when use a hdmi2.1 cable i can only get rgb8bit 60hz or ycbcr 420 120hz on macos，cuz Apple only receive hdmi2.0 signal otherwise the Windows can run as rgb10 120hz hdr full hdmi2.1. So i bought a moshou c-002 adapter which is dp1.4 to hdmi2.1 and also vmm6100 chip. I followed the step as the post said, renew the firmware ，edit the edid bin, and at last I canonly get 4k ycbcr420 12bit hdr or 4k rgb12bit 60hz hdr on macos. While using the adapter i can get full 4k 120hz rgb10bit hdr on Windows.my monitor is lgc2 42. I think the reason is usb c has 40gb while the dp1.4 has only32gb broadwide so the firmware should different, but since Windows11 can run full rgb10 120hz using the dp1.4 adapter ，the broadwide is enough for dp1.4 while the dsc is on if the firmware can be edit correctly on macos i guess?

Looks like DP > HDMI 2.1 works different. We have to test more Adapters to know which one works.

 

[kooki2]

Which Adapter u are using, i need the Model Number. Do u have an Link where u buy it ?

Its 201388-GRY, i bought from Amazon JP https://amzn.asia/d/aO2Iyyd

 

[Zorast]

And plz upload the Picture from Firmware Info in VMMTool showing

 

[sifpilsen]

Really cool and techy write-up. Thanks for sharing!

 

[kooki2]

And plz upload the Picture from Firmware Info in VMMTool showing

Here's capture from firmware info

 

[Zorast]

Here's capture from firmware info View attachment 2171313

U are not using the correct Firmware! Use the Firmware I uploaded/attached to the OP.

 

[Sebastianlw]

The information showed in vmmtool and better display like this. and the adapter is moshou dp-002 dp1.4 to hdmi2.1.

 

[Zorast]

The information showed in vmmtool and better display like this.

Plz test the EDID I uploaded to the OP: https://forums.macrumors.com/thread...ith-apple-silicon-m1-m2-now-possible.2381664/

And send the first 3 Sections in Display Info after enable this EDID.

 

[kooki2]

U are not using the correct Firmware! Use the Firmware I uploaded/attached to the OP.

https://forums.macrumors.com/threads/mac-mini-4k-120hz.2267035/post-31978810

Is this the one you mean? i updated with that one but not sure why its different

 

[Zorast]

https://forums.macrumors.com/threads/mac-mini-4k-120hz.2267035/post-31978810

Is this the one you mean? i updated with that one but not sure why its different

Use this one: https://forums.macrumors.com/thread...ith-apple-silicon-m1-m2-now-possible.2381664/

And send again Firmware Infos Picture when done.

 

[kooki2]

Use this one: https://forums.macrumors.com/thread...ith-apple-silicon-m1-m2-now-possible.2381664/

And send again Firmware Infos Picture when done.

Its working as RGB 10b 4L10 after firmware update
Thank you soooo much for the prompt responses and all the help!!

 

[Zorast]

Its working as RGB 10b 4L10 after firmware update
Thank you soooo much for the prompt responses and all the help!!

Really Good News, can u send me Link from Cable Matter Adapter u buy and plz Model Number show in the Device itself?

 

[kooki2]

Really Good News, can u send me Link from Cable Matter Adapter u buy and plz Model Number show in the Device itself?

Its 201388-GRY, i bought from Amazon JP
I posted already but not appearing publicly somehow
Seems when i put link on here puts on hold and require moderator's approval