I got it to work with my Intel MacBook Pro 16-inch (2019) on macOS 13 Beta, CableMatters (Model No. 201388) and an LG 65CX. Can pick between 4K120 Hz, 4K100 Hz. Does not work with the Apple Adapter (Modell A2119).
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Mac mini: 4k @ 120hz?
- Thread starter Flow91
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Yes, of course. I attached screenshots of Systemsettings & Systemprofiler for the CableMatters (120Hz Limit) & the Apple 2119 Adapter (60Hz Limit). Also the VRR menu on the LG CX with the CableMatters adapter. You can see that it uses HDMI 2.1 FRL signaling (4L6 with 4 lanes) instead of the 2.0 and earlier TMDS signaling with 3 lanes. Unfortunately it’s a fixed framerate and not variable (VRR) and my CableMatters adapter outputs only stereo and not 8 channels or more.
It even work natively with 164hz in 1440p from the display panel in OSX with a DisplayPort to USB-C adapter
I've tried it on a 2017 macbook pro 15 with rx560 and still no option to go over 60hz. So sad. Do you have any special settings please?
The adapter is the same CableMatters as yours.
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I guess this is because the older rx560 model without DSC support so cannot achieve 120hz.
According to pro-display-xdr specs, it needs macbook pro 15 2018 or later.
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I have an M1 and just installed Ventura. It doesn't work with any of my 4K/60Hz adapters or the internal HDMI port with my LG C1.
Just placed order for the Cablematters 4K 120Hz adapter as described above. Arrives in a week
Also would add that the text rendering and overall animations has improved at my weird 3008 x 1692 resolution so even if I don't get 120Hz Ventura seems like a decent upgrade.
Just placed order for the Cablematters 4K 120Hz adapter as described above. Arrives in a week
Also would add that the text rendering and overall animations has improved at my weird 3008 x 1692 resolution so even if I don't get 120Hz Ventura seems like a decent upgrade.
looking forward to your experiments!I have an M1 and just installed Ventura. It doesn't work with any of my 4K/60Hz adapters or the internal HDMI port.
Just placed order for the Cablematters 4K 120Hz adapter as described above. Arrives in a week
Is there any specific thing you want me to test? Tried changing the default resolution to UHD 120Hz, yet no luck. :/
I tried it with my M1 Mac mini. No luck. Still 60 Hz max. Same equipment like with the Intel MacBook Pro 16 inch. I expected it to work. Reason: I have a Dell 2723qe which can be used as USB-C 3.1 Hub. And I get 4K60 Hz + USB-C 3.1 with the M1 Mac mini (this means HBR3 speed + DSC must work) and only 4K30 + USB-C 3.1 on the Intel MBP 16 inch (this means HBR2 or HBR3 speed but no DSC, it works actually under Windows bootcamp).
Confirm Intel MacBook Pro 16-inch (2019) on macOS 13 Beta working. I got a c to HDMI 2.1 adapter and a c to dp adaper. I can get 4k144 using hdmi2.1 adapter while only 4k60 using dp adapter.
I have been scratching my head for a long time on this issue.
The problem.
mac os ventura, the latest supports
-hdmi 2.0
-dp1.4
-TB3(USBC)
the issue is we want to connect macos to a LG oled tv supporting full 48Gbps hdmi 2.1 port. i.e we want
4k/120hz/HDR/full chroma(4:4:4). This requires a bandwidth of 40 Gbps, well within the range of a hdmi 2.1 spec.
To solve this problem, below are the scenarios. correct me if i ' m wrong.
1. Apple macos has to add support for full 48 GBps hdmi 2.1 spec. This is possible only if apple devices start using hdmi 2.1 ports. which as of now only the latest 4k TV device supports. But that is a good start at least.
2. dp1.4 to hdmi is useless since dp1.4 supports max rate of 25Gbps which cannot do 4k/120hz/HDR/444. So using a dp1.4 to hdmi 2.1 adapter is useless. At least in the LG OLED scenario. for other monitors with lower resolution , it may work with in 25 Gbps.
3. TB3 - here things get actually interesting. we have TB3 to hdmi 2.1 adapters and can do 4k/120hz/hdr/444.
In scenario 1 and 3. i.e hdmi 2.1 and TB3 scenarios the GPU SHOULD BE ABLE TO DO 4k/120hz/HDR/444. This can be checked in windows to confirm that the GPU/Adapter/cable can do it.
Apple currently support M1 and AMD 5000 and 6000 GPUS.
AMD 6000 Series : We know that 6000 GPUs can do 4k/120hz/HDR/444 as evident from windows. But most of the 6000 GPUs had ONLY USB-C and NOT TB3 port. so the USB-C port on a AMD 6800XT cannot do 40 Gbps. This port is typically meant for VR headsets and not for driving monitors. since it would required TB3 port. So connecting a usb-c to hdmi 2.1 adapter on this port is a fail.
End result : There is no way to get macos running a AMD 6000 Series to output 4k/120hz/HDR/444 currently even with adapters.
Apple M1/M2: There is no clarity if the are as powerful as the AMD 6000 series. Because a AMD 6000 Series can do 4k/120hz/hdr/444, but no evidence anywhere that a M1/M2 can do 4k/120/HDR/444. Since they are new chips , so we can't expect them to be as powerful and full featured as AMD or NVIDIA GPUs. Even intel GPUs don't come close.
End result : No way to get 4k/120/HDR/444 on a lg OLED, until apple makes M Series powerful enough.
And so this is where we stand w.r.t to HDMI 2.1 and TB3 with mac os.
Hopefully DP2.0 comes out soon and apple does something about it or they improve there M Series chips to handle 4k/120/HDR/444 or they start supporting hdmi 2.1 ports.
until then we just have to wait and see what direction apple takes. The ball is in apple court now...........
The problem.
mac os ventura, the latest supports
-hdmi 2.0
-dp1.4
-TB3(USBC)
the issue is we want to connect macos to a LG oled tv supporting full 48Gbps hdmi 2.1 port. i.e we want
4k/120hz/HDR/full chroma(4:4:4). This requires a bandwidth of 40 Gbps, well within the range of a hdmi 2.1 spec.
To solve this problem, below are the scenarios. correct me if i ' m wrong.
1. Apple macos has to add support for full 48 GBps hdmi 2.1 spec. This is possible only if apple devices start using hdmi 2.1 ports. which as of now only the latest 4k TV device supports. But that is a good start at least.
2. dp1.4 to hdmi is useless since dp1.4 supports max rate of 25Gbps which cannot do 4k/120hz/HDR/444. So using a dp1.4 to hdmi 2.1 adapter is useless. At least in the LG OLED scenario. for other monitors with lower resolution , it may work with in 25 Gbps.
3. TB3 - here things get actually interesting. we have TB3 to hdmi 2.1 adapters and can do 4k/120hz/hdr/444.
In scenario 1 and 3. i.e hdmi 2.1 and TB3 scenarios the GPU SHOULD BE ABLE TO DO 4k/120hz/HDR/444. This can be checked in windows to confirm that the GPU/Adapter/cable can do it.
Apple currently support M1 and AMD 5000 and 6000 GPUS.
AMD 6000 Series : We know that 6000 GPUs can do 4k/120hz/HDR/444 as evident from windows. But most of the 6000 GPUs had ONLY USB-C and NOT TB3 port. so the USB-C port on a AMD 6800XT cannot do 40 Gbps. This port is typically meant for VR headsets and not for driving monitors. since it would required TB3 port. So connecting a usb-c to hdmi 2.1 adapter on this port is a fail.
End result : There is no way to get macos running a AMD 6000 Series to output 4k/120hz/HDR/444 currently even with adapters.
Apple M1/M2: There is no clarity if the are as powerful as the AMD 6000 series. Because a AMD 6000 Series can do 4k/120hz/hdr/444, but no evidence anywhere that a M1/M2 can do 4k/120/HDR/444. Since they are new chips , so we can't expect them to be as powerful and full featured as AMD or NVIDIA GPUs. Even intel GPUs don't come close.
End result : No way to get 4k/120/HDR/444 on a lg OLED, until apple makes M Series powerful enough.
And so this is where we stand w.r.t to HDMI 2.1 and TB3 with mac os.
Hopefully DP2.0 comes out soon and apple does something about it or they improve there M Series chips to handle 4k/120/HDR/444 or they start supporting hdmi 2.1 ports.
until then we just have to wait and see what direction apple takes. The ball is in apple court now...........
We do not have TB3 to HDMI 2.1 adapters. Only DisplayPort 1.4 to HDMI 2.1 adapters which may have a DisplayPort or USB-C connection. Both of which use a DisplayPort signal.
It shouldn't be a fail since it's just a USB-C port. TB3 is no required for HDMI. Only DisplayPort. Or DisplayPort Alt Mode from USB-C.
They should be plenty powerful enough. 4K120 is only 1188MHz. 6K60 is 1286MHz.
DP1.4 should be good enough with proper adapter support. But yes, it's up to Apple to fix their drivers.
4k/120hz/HDR/10bit/444 requires 40Gbps , DP1.4 does not have that bandwidth.
so even if we use the DP1.4 to hdmi 2.1 adapter we cannot get 4k/120hz/HDR/444.
The only way to get 4k/120hz/HDR/10bit/444 FRL is using HDMI 2.1 , which macos currently does not support.
I think you’re forgetting about DSC, which adds a roughly 3:1 visually lossless compression.
The latest adapters can do DP 1.4 DSC to uncompressed HDMI 2.1 as well as pass through DSC if needed.
So, can any one who has 16 inch intel MacBook and the adapter to provide more details about the links? Say, speed rate, channels, DSC, and so on. Many thanks!
Also, it might be interesting to conduct such a test on rx6x00 on Mac Pro or hackintosh!
Also, it might be interesting to conduct such a test on rx6x00 on Mac Pro or hackintosh!