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Mac mini: 4k @ 120hz?
- Thread starter Flow91
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I forgot to check HDR. Should I just try YouTube?
Where would I find that confirmation?
I can test these things a bit later, have to step away for a few hours....
Works great @stevemr123!
I updated the firmware on the cable matters adapter and I now have 4K120 on my LG C2 with my M1 MaxMBP. I'm going to try it with my M1 MBA next. I was just about ready to click buy on the M2max MBP 16 to get 4K120, but now I got around Apple's fake limitation I'm happy enough to not upgrade at this time. I'm only getting 4:2:0 and not 4:4:4 though. Has anyone been able to get the better chroma?
PS found a fly in the ointment. I can't get HDMI audio to work through the USBC Cablematters to HDMI adapter after modding the EDID. Anyone else with the same issue?
I updated the firmware on the cable matters adapter and I now have 4K120 on my LG C2 with my M1 MaxMBP. I'm going to try it with my M1 MBA next. I was just about ready to click buy on the M2max MBP 16 to get 4K120, but now I got around Apple's fake limitation I'm happy enough to not upgrade at this time. I'm only getting 4:2:0 and not 4:4:4 though. Has anyone been able to get the better chroma?
PS found a fly in the ointment. I can't get HDMI audio to work through the USBC Cablematters to HDMI adapter after modding the EDID. Anyone else with the same issue?
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@stevemr123 Thanks for your great work! For a long time I have been troubled by mac can not output 4k120, and I dont want to upgrade to m2 pro/max as there is barely performance gain.
@stevemr123 Thanks! With a modified EDID (as in your guide) I am now getting 4K@120Hz (non-HDR, have not tried HDR) without subsampling (The menu says YCBCR444 8b 4L8) on a M1 Pro MBP 14 connected to an LG C1 48" via a cheap RSHTECH hub. The hub uses a VMM6100 that I updated with the firmware from Cable Matters (lol).
Yeah, the built-in HDMI port is HDMI 2.0 so it is guaranteed not to work. You'll need a compatible HDMI 2.1 dongle, hub or converter cable. It seems like the results are mixed even with some HDMI 2.1 adapters.
Tried the custom EDID for my C2 (even tried the one provided here)
Unitek V1414A does not work. They have newer model V1416B with DSC and VRR tho. *but not available in EU retail
I may wait a tad to see which active adapter yields the best results.
mbp m1 max 14
Unitek V1414A does not work. They have newer model V1416B with DSC and VRR tho. *but not available in EU retail
I may wait a tad to see which active adapter yields the best results.
mbp m1 max 14
4k 120hz Chroma 4:4:4 does also not work with my USB 4 Station. Also RGB 4k 120hz does not work. Only 4:2:2 does work.
dancharblog.wordpress.com
Whe have to test the Docks/Adapters to see if one will work.
I ordered 2 new Adapters and 1 new TB 4 Dock with HDMI 2.1 for testing if there's a limitation in not using TB 4!
120+ USB4 / Thunderbolt 4 Hubs & Docks compared (January 2024)
Visit the post for more.
dancharblog.wordpress.com
Whe have to test the Docks/Adapters to see if one will work.
I ordered 2 new Adapters and 1 new TB 4 Dock with HDMI 2.1 for testing if there's a limitation in not using TB 4!
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How did you update the firmware on your adapter? Was it with macOS or do you have a PC?
I have a PC but when I plug it in it won’t let me update it. It gives some error message.
My build has a 5800X3D so there’s no integrated graphics so I can’t plug in a display as the instructions state.
I had to use my Lenovo Legion 7 to update mine as you're right, unless you have a way to actually have the adapter functioning and carrying a video signal, you won't be able to update it. I guess I could've tried using my 2019 i9 MBP 16 to update it too, but I didn't have it with me.
It should work after firmware update. It's the one I got. You will need a Windows computer or likely an Intel MacBook running bootcamp with video capable USB C ports to update the firmware. I also had to have the adapter functioning by having it plugged into my TV in order to flash it.
Thanks. I’m running a 2018 Mac Mini so I supposed I could temporarily install windows on it again. (Had to do that to build the Windows 10 USB install drive for my PC build)
The Cable Matters firmware update tool is Windows-only (.exe file).
However, I'm not 100% sure the adapter will need the firmware fix for Macs. For sure it helps with Intel iGPUs and LG OLEDs.
It didn't work me until I did the firmware flash, but I could've done something else wrong.
Not sure if parallels would work. If you don't have access to a capable windows laptop, then I would do bootcamp. I'd be afraid of bricking the adapter using parallels to flash it.
I have the Cable Matters, and without the update it does not work on my MBP M1 MAX. I don't have an available PC or intel Mac to flash it.
Sorry to hear you're having troubles with the update. But you've confirmed that it does need the update in order to work. If you can borrow a Windows PC, the update is relatively quick and painless.
I just tested on my wife's 2020 M1 MBA base model and it works at 4K120 4:2:2 with cablematters adapter!