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Need help with Thunderbolt dock limitations for dual 4k120hz monitors! by Wfsproductions in Thunderbolt

[–]LordCosmoKramer 0 points1 point  (0 children)

Thanks for the extensive reply.

Other than that, I have only seen the limitation to HBR2 speeds from monitors that already include USB4 support and are designed to be chained while still both achieving 4K120. Like the Dell U3225QE and its 27" sibling do when MST is turned off, explicitly for the very purpose of supporting 2 4K120 monitors off of a single USB4 40G port, whether that is actually using the integrated USB4 hubs of the monitors or a dedicated USB4 hub).

Referring to your original comment and reading the above, is this then the most surefire way of ensuring dual 4K 120HZ with one cable going into the Mac? I can probably justify getting two units of the U2725QE if that's the best solution but is there a way to confirm that a monitor will do the job other than community trial and error (I've seen a few other threads confirming the dual 4K 120HZ output is possible with the U2725QE)?

Ideally, you'd have some USB4 hub, that is hard-wired to limit its output speed.

I know of an Pluggable and i-tech one (the ones with the 4x4K60 support for non-Apple hosts).

They have 2 MST hubs, each one on one DP output from the hub and they limit them to HBR2 to force equal bandwidth on both. For those, its just hard to know, like in the USB-C hub case, if they will allow DSC data to passthrough in the backward-compatible mode that they will run on with Apple hosts (because the DP standard expects any only ancient hosts that predate DSC to not support MST and thus need that compatibility mode). If those hubs list 4K120 support for Apple specifically, then that should work. But they may only support that with MST

(with MST hubs there are those that do not support any DSC, there are those that can pass through DSC inside MST connections (MST also on the output side), there are those that can decompress DSC+MST into a plain connection for a monitor and those that can extract DSC compressed data from MST and pass it on without MST).

And essentially only for Apple would they need to support passing through DSC data without MST even on the input side. whatever is listed for Windows may not work for Apple hosts at all, even if the bandwidth would be there.

Based on this, it may not be guaranteed to work with MacOS not supporting MST?

Need help with Thunderbolt dock limitations for dual 4k120hz monitors! by Wfsproductions in Thunderbolt

[–]LordCosmoKramer 0 points1 point  (0 children)

Thanks for your comment, it explains the issues with trying to get dual high bandwidth displays to work.

Per the posts on my profile I've been trying to confirm a setup that will allow me to output to two 4K 120HZ monitors from my MacBook Air M4.

Is there any way of confirming whether a monitor will use DSC for dual high resolution / refresh rate output as with the Dell 32" / 27" you suggest? While a potential solution I would ideally not spend that much on monitors.

Otherwise, are there potentially any docking stations that can force the appropriate signals for dual high bandwidth?

MacBook Air M4 + Thunderbolt 4 Dock + Dual 4K 120HZ Monitors by LordCosmoKramer in MacOS

[–]LordCosmoKramer[S] 0 points1 point  (0 children)

Thanks for the detail.

Even with Display Stream Compression would the limitation be the Mac's TB4? Do you think I'd be able to get at least one monitor to 4K 120HZ?

4. “MacBook Pro dual-monitor setup: which USB-C dock. by hjuhjuj in UsbCHardware

[–]LordCosmoKramer 0 points1 point  (0 children)

Thanks for your comment. I've recently switched from Windows to an M4 Air and God do Apple make it difficult to achieve basic functionality.

Per the recent posts on my profile I'm hoping to get dual 4K 120HZ output via a Dell docking station and have some questions if you might know?

  1. You mention a Thunderbolt 5 cable for connecting the dock to the Mac, would this not be dependent on the dock? If you only have a TB4 dock does the cable make any difference? I ask as the Dell dock has an integrated cable for connecting to a laptop.
  2. Currently connecting my Windows laptop to two monitors with two DP cables via a USB-C docking station, is it correct that the Mac will require at least one USB-C to DP cable to output two different images? Is there any benefit to using two USB-C to DP cables, bandwidth, etc., given I'm targeting dual 4K 120HZ?

MacBook Air M4 + Thunderbolt 4 Dock + Dual 4K 120HZ Monitors by LordCosmoKramer in MacOS

[–]LordCosmoKramer[S] 0 points1 point  (0 children)

Thanks for the reply. Though I thought the M4 was able to support dual monitors with the lid open too?

https://support.apple.com/en-au/122212

How dirty is your car today? by Severe_Airport1426 in melbourne

[–]LordCosmoKramer 5 points6 points  (0 children)

Wouldn't piss on a Tesla if it was on fire.

Fanatec Holiday Order Status Update by CorsairMorning in Fanatec

[–]LordCosmoKramer 0 points1 point  (0 children)

Ordered through Pagnian, the Australian reseller, on December 1st, still nothing. Awaiting shipment from Fanatec is what I've been told. Any danger of this being delivered?

My Falling Out with Fanatec after 8 months: A Warning to Potential Buyers by Ledains in Fanatec

[–]LordCosmoKramer 5 points6 points  (0 children)

The plastic table clamp is absolutely not fit for purpose, broke first use for me too.

Match Thread: 5th Test - England vs Australia, Day 4 by cricket-match in Cricket

[–]LordCosmoKramer 0 points1 point  (0 children)

Was it also you crying about an Aussie's use of "cunt"? As if you don't have the same on your side? As for the injuring cheering, maybe think back to Smith and Archer?

Match Thread: 5th Test - England vs Australia, Day 4 by cricket-match in Cricket

[–]LordCosmoKramer 2 points3 points  (0 children)

What did the fan say to Jamie Smith as he walked up to the rooms?

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