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Mac mini: 4k @ 120hz?
- Thread starter Flow91
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I found this where the VIA VL830, what is used in this Dock, can output 4k120hz on M1!
And VIA:
www.viatech.com
And VIA:
VIA Labs Announces Launch of USB4 Device Silicon
Enables multiple simultaneous data and display protocols to share a single link.
www.viatech.com
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Too bad it doesn't have a Thunderbolt compatibility mode and only has one DisplayPort output.I found this where the VIA VL830, what is used in this Dock, can output 4k120hz on M1!
I don't think the chart says the M1 Mac will output 4K120 or 8K30 - it's just saying that it could if the OS supports it (as far as I know, macOS for Apple Silicon doesn't support 8K30?)
I wonder if the VMM6210 supports decoding 10bpc DSC?
I'm trying to run Logic Pro on a M1 mini. The DAW interface is Cranborne 500R8. There are some tutorials on setting Aggregate devices for this bug on a Mac but the M1 screen settings are different than older Mac screens. I'm 76 so user error is a close friend of mine. I'll keep trying but any suggestions would be appreciated.
I get the Dock, works really nice! MacOS does recognize it as an USB4/Thunderbold4 DeviceSearching for a TB 4 or USB 4 Dock for my Homeoffice. Found this one, its support DP 1.4 and HDMI 2.1. Does not found another Dock that have this both available. Hopefully Future MacOS updates will support HDMI 2.1 over TB 4
USB4 Docking Station Dual Display 4K&8K, QUUGE USB C Dock 14 in 1, HDMI+DP, 3×USB 3.2, 3×USB 2.0, 100W PD Upstream, mit USB4 Kabel, Kompatibel mit USB-C, Thunderbolt 4/3, USB4, MacBook Air Pro
USB4 Docking Station Dual Display 4K&8K, QUUGE USB C Dock 14 in 1, HDMI+DP, 3×USB 3.2, 3×USB 2.0, 100W PD Upstream, mit USB4 Kabel, Kompatibel mit USB-C, Thunderbolt 4/3, USB4, MacBook Air Prowww.amazon.de
I got one:
USB4 Docking Station Dual Display 4K&8K, QUUGE USB C Dock 14 in 1, HDMI+DP, 3×USB 3.2, 3×USB 2.0, 100W PD Upstream, mit USB4 Kabel, Kompatibel mit USB-C, Thunderbolt 4/3, USB4, MacBook Air Pro
USB4 Docking Station Dual Display 4K&8K, QUUGE USB C Dock 14 in 1, HDMI+DP, 3×USB 3.2, 3×USB 2.0, 100W PD Upstream, mit USB4 Kabel, Kompatibel mit USB-C, Thunderbolt 4/3, USB4, MacBook Air Pro
www.amazon.de
Its connected with 40 Gbits !!
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You didn't select the Thunderbolt/USB4 bus that has the dock connected to it...
You can't connect data at more than 10 Gbps (all the USB ports share a 10 Gbps upstream connection) since it has no downstream USB4 port and contains no additional USB controllers via PCIe.
It only supports one DisplayPort connection (25.92 Gbps) so really these USB4 non-Thunderbolt docks can only use 35.92 Gbps.
But it probably won't connect 40 Gbps for Intel Macs.
It probably only has tow lanes of DisplayPort when connected to a Thunderbolt 3 computer so it only uses 22.96 Gbps in that case.
The internal MST hub might not support DSC 10bpc decompression (all the VMM5xxx based Synaptics MST hubs I've seen have that limitation - I don't know if the VMM6xxx have that limitation - I don't know what chips this dock uses. Check for USB, PCI, Thunderbolt devices in System Information.app. Check the DisplayPort info by connecting to an Intel Mac and running AllRez).
Have you tried betterdisplay. you can scale smoothly just like windows on any resolution monitor with HiDPi. Fantastic tool.
This tool should be built into MacOS.
Yes iam using waydebbers BetterDisplay, really nice tool! HiDPi is only near native possible because of MacOS limitations. So iam in 3840x2159px. But on 42 Inch the PPI is not good enough. Hopefully future products will bring us 42 Inch 8k!
Yes , higher PPI is always better. But then the cost goes up.
For a TV the PPI will always be lower than a monitor. But now we have oled monitors with 240 hz coming out and DP 2.0 devices. Hopefully next year. Apple has a lot of catching up to do. But i shudder to think what an OLED from apple will cost.
The latest version of BetterDisplay tool allows you extract and upload modified EDID with very simple UI. For anyone wanting to do this, you can skip the lengthy process i wrote. you can simply extract the EDID. Modifiy it in AW Editor and upload it via the BetterDisplay tool. Reboot. Done.
An interesting observation is that if i connect dp 1.4-> HDMI 2.1 cable, MacOS accepts the modified EDID. but with hdmi 2.1 -> hdmi 2.1 cable. he does not accept the modified EDID.
I don't understand why MacOS does this , but this simple experiments confirms that MacOS is limiting the HDMI signal for sure. but not DP signal.
An interesting observation is that if i connect dp 1.4-> HDMI 2.1 cable, MacOS accepts the modified EDID. but with hdmi 2.1 -> hdmi 2.1 cable. he does not accept the modified EDID.
I don't understand why MacOS does this , but this simple experiments confirms that MacOS is limiting the HDMI signal for sure. but not DP signal.
I did write to the support and ask them how much Bandwidth i get on the HDMI 2.1 or DP 1.4 Connector without DSC. Waiting for there reply.
On M1 Macs , i believe the overrides work differently. Have you tried this?Ok... on M1 GPU EDID overwrite does not work
DP 1.4 = 25.92 Gbps of video data before 8b/10b encoding.
DSC does not increase bandwidth. It's a compression method to increase the number of pixels that can be sent. The unknowns are what kind of decompression it can do (all the DSC info of the DPCD of the MST hub: bpc, slices, rates).
Some good news. We are getting there..
the new AMD GPU 7000 series supports DP 2.0 UHBR 13. which has a bandwidth of 54Gbps. All we need now is a DP 2.0 to HDMI 2.1 and we can have 4k/120/444/HDR.
We have to see who will first make the first dp2.0->hdmi2.1 cable or macos natively supports hdmi 2.1.
I bet the converter cables comes out first. LOL.
the new AMD GPU 7000 series supports DP 2.0 UHBR 13. which has a bandwidth of 54Gbps. All we need now is a DP 2.0 to HDMI 2.1 and we can have 4k/120/444/HDR.
We have to see who will first make the first dp2.0->hdmi2.1 cable or macos natively supports hdmi 2.1.
I bet the converter cables comes out first. LOL.
This solves nothing because these GPUs are not in Macs and MacOS itself is clearly the issue here, not hardware.
You can use even a USB-C to DP 1.4 -> DP 1.4+DSC -> HDMI 2.1 chain with two separate adapters and out of a 2080 Ti's USB-C output it just works, whereas MacOS is "nope, 4K 60 Hz."
Apple needs to sort this issue but it's probably way down on their list of reported problems that it's not happening until they are forced to implement HDMI 2.1. I fully expect the upcoming M2 laptops just won't have anything but a HDMI 2.0 port on them and we need to wait until M3 for this to get fixed.
What i meant is that apple will support DP2.0 before hdmi 2.1, even though hdmi 2.1 has been out for quite sometime now.
Then if we get DP2.0 -> HDMI 2.1 adapters , we should get 4k/120 with all the goodies , since both standards are capable of sufficient bandwidth. The issue is TVs usually don't support DSC like Monitors do. e.g LG CX.
With DP2.0 , we wont need DSC or USB-C. Although if they supported HDMI 2.1. It would solve most problems for TV owners. But not its gonna happen anytime soon. So best hope is DP2.0.
Also updated to Ventura 13.1 today, No sign of any updates to HDMI 2.1.
With the new M2 Pro/Max MacBook Pros and the new M2 Pro Mac mini supporting "one display with up to 8K resolution at 60Hz or 4K resolution at 240Hz" over HDMI what are the chances that DisplayPort 1.4 → HDMI 2.1 adapters will now work with macOS for 4K120?
Does appear the M2 Pro finally has an HDMI 2.1 port so it seems like the chances are definitely better than 0%
Hmm going to test the latest beta to see if I can get any of my adapters to work with my M1 Max.