Exactly. With Windows “it just works”, even with the same hardware. This used to be the strong point of the Mac
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Mac mini: 4k @ 120hz?
- Thread starter Flow91
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There were a couple of alternatives depending how I connected to the Samsung and if «input signal plus” was activated. 4K@60hz with either 8 bit or 10 bit color. I saw 4:2:0 in some cases, text not looking great. Then a better chroma that was either 4:2:2 or 4:4:4, with good text. Good enough for presentations. Not easy to see which one. Some months since I checked. I connect the Mac to the 8K TV only for specific applications or presentations. I prefer monitors for daily work.
You may find some more data here:
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Page 20 | Updated 21-April-2021 Will the Radeon RX 6800 XT just work out of the box (well, in an eGPU box, no pun intended) with a Mac? W...
egpu.io
Well, all I'm saying is that if Apple can design and implement their own silicon, then they should have enough resources to spare to fix what is a relatively small issue in the grand scheme of things.
It should be 4K 60hz / 120hz 10 bit 4:4:4 with UHD input signal plus active. That’s the limit of macOS. With DSC in Windows that panel should go up to 8k 60hz 10bit 4:4:4 (Samsung manual says so) and we all hope macOS will unlock this capability. Basically my question is: at 4K 60hz 10bit 4:4:4 (max output of macOS) text is ok given it’s post upscaled by the tv in a straight 4x integer scale? Would you judge it usable in everyday use or text is blurry and unusable? @ArvineThere were a couple of alternatives depending how I connected to the Samsung and if «input signal plus” was activated. 4K@60hz with either 8 bit or 10 bit color. I saw 4:2:0 in some cases, text not looking great. Then a better chroma that was either 4:2:2 or 4:4:4, with good text. Good enough for presentations. Not easy to see which one. Some months since I checked. I connect the Mac to the 8K TV only for specific applications or presentations. I prefer monitors for daily work.
You may find some more data here:
Page 20 | Radeon RX 6800 / RX 6800 XT / RX 6900 XT for macOS...
Page 20 | Updated 21-April-2021 Will the Radeon RX 6800 XT just work out of the box (well, in an eGPU box, no pun intended) with a Mac? W...
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Well, maybe "it" just working was. But random hardware designed by 3rd parties for Windows PCs just working on a Mac without any explicit support or drivers from either the vendor or Apple... not so much.
Or perhaps the reason Apple has the resources to design and implement their own silicon is because they're laser focused on that and aren't distracted by supporting every new feature or bit of hardware being produced by outside parties. Also, despite the minor version number change (2.0b to 2.1), FRL is probably the most significant change in the entire history of HDMI. It's even more significant than the differences between DVI-D and HDMI.
Let's hope Apple will implement general support for HDMI 2.1 (and Displayport 2.0), as they have done in the past for earlier versions. During the next couple of years 8K displays will likely be common for a range of use cases. Apple is already marketing the Apple Silicon Macs for 8K video production. Sooner og later, professionals would like to see what they are editing. 8K also has scientific use cases, i.e. data visualisation. Maybe we get support for higher resolutions with next years' Macs, being it M1 Pro/Max or M2 based Mac Pro, Mac mini or Macbook Pro.
It doesn't matter... this is Apple we're talking about. Basically every other Windows PC with Thunderbolt supports HDMI 2.1. We should expect more from Apple.
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Neither Thunderbolt nor any product Intel manufactures has any inherent support for HDMI 2.1 FRL at this juncture. AMD and NVIDIA both sell GPUs that include HDMI 2.1 features including FRL and have therefore developed Windows drivers in conjunction with Microsoft to support those features. Synaptics and Realtek have piggybacked on that support and developed additional Windows drivers to allow their protocol converters to work. What's the economic case for Apple to prioritize FRL support in macOS right now? What specific hardware should they target first?
When I'm asking someone to do something for me, something I'm not able to do myself, I find it helps to ask nicely and have some understanding of how much effort is involved in what I'm asking. Acting entitled and making demands of others just isn't my style.
As consumers it is our duty to express our demands plainly and without any shame. Consumers demand, and the market delivers. That's just how the economy works, no need to be modest here.
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May I ask how you were able to unlock the 120hz option? I only see up to 60hz at 1440p scaling.
Make sure you’re using 2560x1440 low resolution mode and not scaled mode. Scaled mode still utilizes the higher res so it won’t have the available bandwidth. You have to do Option + Scaled on display settings.
Yeah I just figured it out. But now everything is super fuzzy with or without HDR. Did you run into this issue? Not using a C1 btw.
Yup that’ll happen. At that res and monitor size, it’s only 61ish PPI so you’d have to be sitting around 55-72” away for it to look decent. Basically only good for a wall mounted solution.
No, I mean really fuzzy. Additionally there's a bright white glow around any high contrast areas such as text. It only happens with 1440@120hz. According to some calculator I used I'd be needing around 22 Gbps of bandwidth without DSC which exceeds HDMI 2.0's limit of 18 Gbps. Does the M1 Pro support DSC? I'm assuming it does since you said it works fine on your end.
Edit: HDMI 2.0 apparently doesn't support DSC, so how did you get it to work?
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Could be quite a few things such as how that monitor performs scaling, sharpness settings, chroma the monitor is defaulting to, color profile settings. A lot of monitors don’t handle HDR well in the OS outside of actual HDR color space media. I’d try turning HDR off, switch to another color profile and verify sharpening is off. Other than that, someone with your monitor would have to provide more
It turns out sharpness was way too high, which is interesting as I had no issues at 1440@60hz and 1080@120hz with the same settings.
I don't think it supports HDMI 2.1.
https://forums.macrumors.com/thread...ax-support-without-hdmi.2322772/post-30611556
If it turns out to be the FRL issue, then you are right our chances of them correcting it quickly is lower. But I still think it may be the frequency issue - I am an optimist though!
EDIT: Another thought, do these adapters even need drivers - I would have thought not? From my understanding, the adapter is supposed to take in DP 1.4 and export HDMI 2.1 - the problem here is Apple is seeing and respecting the 300mhz limit of HDMI.
I hope you are right RE the PS195 and PS196 adapters - if they work I'll happily buy some for my dongle farm.
Any change with the Monterey 12.1 update? I know this fixed some scrolling issues at 144Hz in browsers, but this isn't exactly super related. Hoping something changed with the state of these HDMI 2.1 adapters.
There are no drivers specific to the adapters themselves but the display drivers (whether Nvidia or AMD drivers on Windows or AMD/Intel/Apple drivers on MacOS) need to support the right stuff.
When the adapter launched I don't think there were even any HDMI 2.1 GPUs on the market yet so I have no idea if the GPU drivers had support for that already built in and if it applied in any way to the 20xx series I have. I have no technical knowledge on how these adapters interface with the GPU on a technical level.
My 2080 Ti worked perfectly fine in Windows when the Club3D adapter was first released and any issues were problems with the adapter firmware and LG OLED firmware. Subsequent adapter and TV firmware updates fixed a lot of issues to the point that it all worked fine.
Then Nvidia made some driver update that broke the support for over 600 MHz pixel clock with these adapters for several months until they acknowledged and fixed the problem. So for MacOS it's speculation if the same kind of issue is causing it to not work.
Apple probably won't bother to fix it anytime soon if there is not much demand. This thread seems quiet so we need every help we can get, please refer to Artagra's post in this thread and submit a report to Apple to help bring it to their attention. We need as many people as possible to help submit a report to Apple to get their attention.
Audio stopped working when I upgraded to Montery. I no longer get any audio output through my LG G1 with the DisplayPort to HDMI 2.1 adapters. The output device is available in macOS, but no audio plays through the TV. I suspect it's a timing issue because when I unplug and replug the adapter, the audio briefly plays while the screen is still blank.