[joevt]

The CAC-1334 doesn’t include USB and it won’t work above 4K resolution. That’s why I prefer the CAC-1336. If only it wasn’t so difficult to make work for many situations.

I think the CAC-1336 works with all HDMI versions.

The people you call at Apple will not know why the Studio display won’t work with the adapter. They will tell you so or make some excuse.

Does the Mac mini detect a display when you connect the Studio Display using the CAC-1336?

Use SwitchResX to create custom timings and change refresh rate.

Maybe putting a CalDigit Element Hub or other Thunderbolt hub between the Studio Display and the CAC-1336 might help.

[joevt]

If it works at all, then the USB ports of a Studio Display should also work. They will be limited to USB 2.0 speed.

I was using the CalDigit Element Hub because the CAC-1336 would not work with a USB-C to DisplayPort adapter or cable. Since the Studio Display has a USB-C input, then a straight USB-C cable should be sufficient but I don’t have one to test. The Studio Display is like a Thunderbolt hub/dock so it should work as well as the CalDigit Element Hub does.

What’s a Mac mini pro? Do you mean Mac Studio? Or do you mean Mac mini with M2 Pro?

[joevt]

What matters is the pixel clock, not the refresh rate. What does the timing info for the 144Hz mode look like in the EDID?

Dual Link DVI can do 2560×1600 60Hz (268 MHz).

Dual Link DVI can do up to 330 MHz. That should be enough to do 1920×1080 144Hz.

[joevt]

Does the overheating problem go away when you switch back to Catalina?

Does Activity Monitor show any process that’s using a lot of CPU?

What does the kernel panic text say?

Can you remove the devices and plug them in one at a time to see which one might cause the problem?

Can you try connecting all the devices without the Club 3D CSV-1580? Or as many as possible since the CSV-1580 adds 3 Thunderbolt ports.

Is the external SSD Thunderbolt or USB?

Does the AVerMedia GC555 Live Gamer BOLT Capture Card only have one Thunderbolt port because it’s bus powered?

The CSV-1580 is just a Thunderbolt 4 hub. If it weren’t compatible with Ventura, then neither would be any other Thunderbolt 4 hub.

[joevt]

Some people have luck with old HDMI 2.0 to DisplayPort 1.2 adapters that have dip switches to select an EDID. Maybe you can add a Dr HDMI 4K between the PS5 and the CAC-1334? Or maybe the Apple Studio Display needs a USB-C signal that includes USB data?

The CAC-1334 only supports up to 4K.

The CAC-1336 might be able to support 5K (from a PC – I don’t think the PS5 can do 5K? In that case the CAC-1336 should still be able to do 4K). The CAC-1336 has a USB 2.0 input so the USB features of the display can work (audio, USB ports, etc – but only up to USB 2.0 speed).

[joevt]

You only need the USB connection if you want to use the USB ports of the display or if you want brightness control from the keyboard to work.

I think my USB port is broken so I leave it unconnected. I can use Monitor Control instead to control brightness (set Brightness DDC max in the preferences advanced settings to 255 so you get the full range).

The Mac mini 2018 only supports two displays. I suppose you don’t have any other displays connected?

The Power block needs to be near the Mac mini so you can connect the display’s power connector to it and the display’s DVI connector to the CAC-1510-A.

What year is the 30″? Newer versions can work with the HDCP ON adapter. You can update the firmware of the HDCP OFF so it behaves as HDCP-ON by getting the firmware updater from [email protected]

But before changing the firmware. Do screen sharing to the Mac mini, install SwitchResX. In SwitchResX, verify that the current display mode is 1280×800@60Hz or 2560×1600@60Hz. Double click the resolution to verify the active pixels.

[joevt]

That resolution appears to require less bandwidth than 4K60 (assuming CVT-RB timing) so it should work for DisplayPort 1.2. The question is, does DisplayLink support arbitrary resolutions? I think DisplayLink should be smart enough to support whatever resolutions are listed in the EDID of a display but I’ve never used DisplayLink before. Maybe check the DisplayLink website. What display do you want to connect? Is 3840×2560@50Hz the native resolution of the display? I found the following:

https://support.displaylink.com/forums/287786-displaylink-feature-suggestions/suggestions/44899879-add-support-for-3840-x-2560-resolution

I guess it means that the mode is not supported because 2560 is taller than the normal 3840×2160 (8294400 pixels). It’s possible the DisplayLink adapter doesn’t have enough memory for 3840×2560 (9830400 pixels). Well, that’s not entirely true. The DisplayLink adapter has enough memory for 5120×2880 but in that case it is actually doing two displays at 2560×2880 each (7372800 pixels). I don’t know if DisplayLink can change the driver or firmware to do a single 3840×2560 display.

Then I found this which said it did work?

https://www.displaylink.org/forum/showthread.php?t=68569

 

[joevt]

I think club-3d has one guy that answer’s mail one day per week.

[joevt]

Unidirectional just means that one end must be connected to the computer while the other end must be connected to the hub or display. Like I said before, the product page of the CAC-1589 is poorly written and lacking detail. I don’t know if it supports USB 2.0 (480 Mbps), 3.0 (5 Gbps), 3.1 gen 2 (10 Gbps) or 3.2 gen 2×2 (20 Gbps using two lines in each direction). It says it supports Video and Data so it must support DisplayPort and USB of some kind but they don’t say how many lanes of each or what link rate for each. USB is not possible unless the cable can both transmit and receive so at least that part will be bidirectional.

[joevt]

CAC-1589 is a 20m USB-C to USB-C cable. They also have a 5m cable. I don’t see a 10m version. The product page for the CAC-1589 is strange. It says gen 2 so you might assume it supports 10 Gbps USB but it doesn’t say 10 Gbps anywhere. It says it supports 3840×2160 60Hz but that only requires 5.4 Gbps per line but that’s only if there’s 4 DisplayPort lanes. The product page does not say if it supports 4 lanes of DisplayPort. That might be too complicated for an optical cable to support, so I guess it could be only 2 lanes of DisplayPort. 2 lanes of HBR3 (8.1 Gbps each) is enough for 4K60 8bpc. There’s a double asterisk note that says DSC 1.2 is required for some resolutions but there’s no double asterisk outside the footnotes so I don’t know what resolution it’s referring to.

For type A, there is the CAC-1538 which is a 10m USB-C to Type-A cable but it only does 5 Gbps.

The CAC-1411 is a 5m type A extension. Maybe that will work with the CAC-1536. I don’t think it’s a good idea to chain long cables together.

[joevt]

Which model LG UltraFine? The old LG UltraFine 5K (27MD5KA) only works with Thunderbolt. The latest model LG UltraFine 5K (27MD5KL) will accept Thunderbolt or USB-C. Thunderbolt allows 5K60. USB-C allows 4K60 or 5K39.

The CAC-1333 might work, or it might not. The LG UltraFine displays have no buttons so you can’t turn them on if they won’t turn on automatically, and you can’t turn them off to force a reconnect if there’s a problem. I would avoid displays that don’t have buttons or multiple inputs.

With the CAC-1333, you would loose access to the USB features of the LG UltraFine display. The CAC-1332 is better since it has a USB 2.0 input but I don’t think those are made anymore. The CAC-1336 is actually better than that since it has USB 2.0 input and can support width > 4096 if you wanted to try a 5K mode.

Regarding input/output. The source of the video signal is considered the output, while the destination of the video signal is the input.
+ Macbook USB-C -> input of KVM / HDMI output of KVM -> CAC-1336 -> USB-C input of LG UltraFine
+ USB output of KVM -> USB input of CAC-1336. Then you can connect keyboard/mouse to display.

Maybe a USB-C switch will work.   #401 
and it would be simpler but it depends a lot on the cables involved.

[joevt]

DisplayPort to Dual Link DVI adapters require 4 lanes of HBR to support Dual Link timings (8bpc pixel clock beyond 165 MHz).

The 40AY is a USB-C dock that supports USB 10 Gbps so it has only 2 lanes of DisplayPort but it supports DisplayPort 1.4 so it should support HBR3 and I think it has an MST hub so it can convert 2 lanes of HBR3 to 4 lanes of HBR even without DSC so I don’t know why it wouldn’t work. I can’t find mention of MST in the user manual of the dock. I would look at the DPCD info from the DisplayPort to be sure.

Did you try connecting the CAC-1010 directly to the computer, bypassing the docking station?

[joevt]

CAC-1336? Both the Wacom and the CAC-1336 are limited to USB 2.0. The Wacom is limited to 4K30 from HDMI 1.4. The CAC-1336 can support up HDMI 2.1 and timings with width > 4096.

https://insights.club-3d.com/thread/cac-1336-operation/

 

[joevt]

The Flash icon is a Thunderbolt icon.

The Logilink adapter cannot output 4K60 from DisplayPort 1.2 because it is a USB-C adapter that uses two of the 4 super speed lanes for USB 3.0. The remaining 2 lanes for HBR2 is limited to 8.64 Gbps which is enough for 360MHz 8bpc. That’s enough for 4K30 HDMI. For 4K60 you would need 4:2:0 but I don’t think DisplayPort supports 4:2:0.

Maybe the Logilink adapter supports 2 lanes of HBR3 (up to 12.96 Gbps) using DisplayPort 1.4. But that won’t help since the Dell Latitude 5310 is limited to DisplayPort 1.2. But even with HBR3, you would be limited to 540MHz 8bpc which is enough for 4K60 CVT-RB timing but not HDMI timing. You would need 4:2:2 (16/24 components) or 4:2:0 (12:24 components) or 6bpc to get HDMI timing. Perhaps your display does not require HDMI timing (3840 x 1600 is not a CTA-861 mode). The Dell Precision 7760 supports DisplayPort 1.4 so it works better with the Logilink adapter.

You can get USB-C hubs that don’t support USB 3.0 such as the Club-3d CSV-1534 or Cable Matters 201046-BLK. They are limited to USB 2.0 but will have 4 entire lanes of HBR2 or HBR3. 4 lanes of HBR2 supports 4K60 594MHz HDMI 8bpc or 4K60 533MHz CVT-RB 10bpc. The USB-C ports of these hubs is for charging only. You cannot connect a CAC-1517 to the hub. If you want a hub with USB-C ports, then get a Thunderbolt 3 dock. A Thunderbolt 3 dock can support USB 10Gbps and 4 lanes of DisplayPort 1.4 but are much more expensive than a USB-C hub.

If you need to use the HDMI port of the display, then consider a modern USB-C to HDMI 2.0 adapter. I think the Club-3d USB-C or DisplayPort to HDMI 2.0 or HDMI 2.1 adapters should support arbitrary aspect ratios. The CAC-1588 should be sufficient. I’m not sure why it would only give 4K30 for your setup.

HDMI 2.0 = 14.4 Gbps (after considering the 8b/10b encoding).
DisplayPort 1.2 = 17.28 Gbps (after considering the 8b/10b encoding).
DisplayPort 1.4 = 25.92 Gbps (after considering the 8b/10b encoding).

3840 x 1600 @144Hz 10bpc CVT-RB2 = 29.0 Gbps.
3840 x 1600 @144Hz 8bpc CVT-RB2 = 23.2 Gbps.
3840 x 1600 @120Hz 10bpc CVT-RB2 = 23.9 Gbps.
3840 x 1600 @120Hz 8bpc CVT-RB2 = 19.1 Gbps.
3840 x 1600 @100Hz 10bpc CVT-RB2 = 19.7 Gbps.
3840 x 1600 @100Hz 8bpc CVT-RB2 = 15.8 Gbps.
3840 x 1600 @75Hz 10bpc CVT-RB2 = 14.6 Gbps.
3840 x 1600 @75Hz 8bpc CVT-RB2 = 11.7 Gbps.

I think 10bpc is required for HDR which might require 4:2:0 or DSC for higher refresh rates. The user manual doesn’t mention support for 4:2:0 or DSC. You need EDID and DPCD dumps to learn the exact capabilities of a display and its DisplayPort ports. The EDID will list all the supported timings (they might differ from CVT-RB2). The DPCD info can be obtained from DisplayPort/USB-C to HDMI adapters as well. I think you can get DPCD in Linux with some commands. For macOS (Intel Macs), I made a tool called AllRez to dump all the display info including DPCD.

You can use CRU (Custom Resolution Utility) to examine the EDID and create custom timings. I would use edid-decode to dump EDID info to a text file.

[joevt]

What’s the bandwidth of the cameras? Are they USB 2.0 or USB 3.x?

A USB docking station has to divide the 5 or 10 Gbps upstream connection among USB 3.x cameras.

If all the cameras are USB 2.0, then they will share a USB 2.0 upstream connection (480 Mb/s) because USB 2.0 is completely separate from USB 3.x.

The same thing applies to modern Thunderbolt 3 or Thunderbolt 4 docks that support connection to hosts that don’t have Thunderbolt. Since a host might not have Thunderbolt, the Thunderbolt dock uses a USB hub for all its ports so they can be connected via USB.

However, old Thunderbolt 3 docks that require a Thunderbolt connection to the host will usually not use USB hubs. Instead, they have multiple USB controllers. For example, the CalDigit TS3+ has two 4 Gbps controllers, one 8 Gbps controller, and one 10 Gbps controller. Each 4 Gbps or 8 Gbps controller may have multiple separate ports (not part of a hub). Each controller is separate and the total bandwidth can be ≈22 Gbps.

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