[joevt]

You can post the raw info for others to look at.

[joevt]

[quote author="r0xR"]DHCP[/quote]

I meant HDCP. You have the CAC-1010 – HDCP On version. I wonder if it works properly with a display that doesn’t support HDCP.

You can use a utility such as CRU (Custom Resolution Utility) to extract the EDID and save it as a binary or hex file. CRU can view some of the info, but the best utility to see all EDID info is edid-decode. I’m not sure if there’s a Windows version of that. Another option is MonInfo.exe

Each port of the display might have a different EDID. If you can’t get an EDID using a dual link DVI connection, then try a single link HDMI connection to the dual link DVI port.

[joevt]

Does Windows detect the display?

Does the XL2411 support DHCP? Probably, but I would check the EDID.

Did you try other connection methods? such as the following:

1. Does the XL2411 work with a HDMI connection from HDMI of GPU to HDMI of display? It will be limited to 60Hz. Strange that the XL2411 doesn’t have a HDMI port that can do 144Hz. I guess it can only do single link up to 165 MHz so they use dual link to get the higher refresh rate.
2. What if you connect the adapter to the display using a DVI to HDMI connection? It will be limited to 60Hz.
3. What if you connect the display’s DVI port to the HDMI of the GPU using a HDMI to DVI adapter? It will be limited to 60 Hz.

 

[joevt]

It’s possible the single link DVI cables require DisplayPort Dual Mode (DP++) and that the Mac Pro’s Thunderbolt 2 ports don’t support DisplayPort Dual Mode.

DisplayPort Dual Mode is a passive conversion from DisplayPort to HDMI – the GPU outputs an HDMI signal using the DisplayPort pins and all the adapter needs to do is level shift the voltage.

Some Thunderbolt docks may have DisplayPort ports that support DisplayPort Dual Mode.

DisplayPort to Dual Link DVI adapters are active adapters – they contain a chip that converts DisplayPort protocol to DVI/HDMI protocol – so you should have no problem with those.

One think to remember about DisplayPort to Dual Link DVI adapters is that they usually require four lanes of HBR to do dual link DVI resolutions such as 1440p60 or 4K30 (the converter chips are too old to support HBR2 link rate). A USB-C dock that supports USB 3.x will have a DisplayPort output that is limited to two lanes unless the dock contains an MST hub to convert 2 lanes of HBR2 or HBR3 to 4 lanes. This is not a concern for single link displays – two lanes of HBR is sufficient for 1080p60.

[joevt]

You can connect six displays to the Mac Pro 2013. You can connect two displays per Thunderbolt port (using a Thunderbolt 3 dock/display/device/adapter or multiple Thunderbolt 1/2 docks/displays/adapters), but only two displays per Thunderbolt bus. There are three Thunderbolt buses. Each Thunderbolt bus has two Thunderbolt ports. Connect one display per port or two displays to a single port.

The LG 22MB37 is only 1920×1080 60Hz, so you don’t need a Dual Link DVI adapter. A single link DVI adapter is sufficient (single-link DVI adapters don’t require USB power) – that includes DisplayPort to HDMI adapters which you can convert to DVI with a HDMI to DVI adapter.

A Dual Link DVI Adapter will work with single link displays (DVI or HDMI). Dual Link displays (2560×1600 60Hz or 3840×2160 30Hz) will be limited to 1280×800 60Hz or 1920×1200 60Hz or similar resolution if used with a single link DVI or HDMI adapter.

[joevt]

The link works fine.
https://insights.club-3d.com/thread/cac-1336-operation/

[joevt]

Do you mean the CSV-1474?

Install DisplayLink drivers for macOS High Sierra.
https://www.synaptics.com/products/displaylink-graphics/downloads/macos

Macbook Air 2011 has a Thunderbolt port. For best video output, this is the preferred connection. It’s limited to 2560×1600@60Hz. Maybe it can do 4K30. The advantage over DisplayLink is that the display is connected directly to the GPU. DisplayLink uses USB and therefore requires CPU power to compress the image.

 

[joevt]

Did you check that the DP 1.4 MST Hub supports DSC? I had to update the firmware of my Delock 87737 to get DSC support:
https://github.com/fwupd/fwupd/issues/1665

Also, I found that no DP 1.4 MST Hub supports DSC decompression for 10bpc.
https://www.reddit.com/r/UsbCHardware/comments/sx2ou3/looking_for_usb_c_dock_for_laptop_with_ryzen/
You need to select 8bpc or use a lower refresh rate or resolution or connect fewer displays.  HDR usually requires 10bpc. Does Windows allow HDR with 8bpc?
Did you try connecting only one display to the MST Hub?

To check DSC support and DSC compression capabilities, you need to examine the DPCD registers of the DisplayPort device. I don’t know how to do that on a PC (except to dump the info from Linux or hackintosh/macOS)
https://github.com/joevt/AllRez

 

[joevt]

People have gotten 4K60 from PS5 to XDR:
https://forums.macrumors.com/threads/turned-on-xdr-by-ps5-with-4k-60hz.2308707/
but they used some older HDMI 2.0 to DisplayPort 1.2 adapters which have EDID overrides:
https://insights.club-3d.com/thread/hdmi-2-0-to-displayport-1-2-2/?paged=4

 

What if you put a Thunderbolt 4 hub between the CAC-1336 and the XDR?
https://insights.club-3d.com/thread/cac-1336-operation/

 

Speaking of EDID overrides, maybe something like the Dr HDMI 8K would help?
https://hdfury.com/product/dr-hdmi-8k/

 

[joevt]

CAC-1173 is for HDMI output.

The Apple Studio Display only takes Thunderbolt or USB-C DisplayPort Alt Mode input.

The MacBook Pro (Retina, 13-inch, Early 2013) may be limited to 2560×1440 60Hz. Maybe it can do 4K30 from the Thunderbolt port or HDMI port?
https://apple.stackexchange.com/questions/129653/early-2013-macbook-pro-with-4k

A CAC-1332 may allow the USB functions of the display to work (brightness control, camera, audio) but for some reason Club-3d replaced it with the less functional CAC-1333.

The CAC-1336 also allows USB and it can allow up to 5K or 6K width (but your MBP would still be limited to 1440p60 or 4K30). https://insights.club-3d.com/thread/cac-1336-operation/

I think the best connection would be to use an Apple Thunderbolt 3 to Thunderbolt 2 Adapter with a Thunderbolt 2 cable. This way you get up to 10 Gbps USB from the USB-C ports of the Apple Studio Display instead of just USB 2.0 (480 Mb/s).

For full 5K60, you would need an eGPU. Check eGPU.io for examples/solutions.

[joevt]

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

[joevt]

You need a solution that combines DisplayPort and USB, not just DisplayPort.

What link rate do the glasses require? The resolution is only 3840 by 1080. HBR2 link rate can do that up to 120Hz, 10bpc.

The Belkin Charge and Sync Cable can do USB 2.0 + HBR3 link rate (DP 1.4) 4 lanes. It”s a really long cable made for VR glasses but it also works with normal USB-C displays.

The Wacom Link Plus can do USB 2.0 + HBR2 link rate (DP 1.2) 4 lanes. Do your glasses come with a USB-C cable?

A Thunderbolt 3 or Thunderbolt 4 add-in card for a desktop PC can give you a proper USB-C output. USB 3.x + 2 lanes of HBR3 or USB 2.0 with 4 lanes of HBR3.

The Club-3D CAC-1336 converts HDMI 2.1 to USB-C/DisplayPort 1.4 (USB 2.0 with 4 lanes of HBR3). If it doesn’t work, then you can make it work by connecting some other stuff. I don’t know if it supplies enough power. The USB-C output might not be compatible with active cables or something. Maybe the CAC-1535 would help in that case (I haven’t tried that). The CAC-1336 is just built wrong for proper USB-C support – I was able to get it to work by connecting a Thunderbolt 4 hub to the USB-C output of the CAC-1336. Then I can connect any USB-C cable or adapter to the Thunderbolt 4 hub.
https://insights.club-3d.com/thread/cac-1336-operation/

 

[joevt]

Sounds like you are having the issue with or without the TB4 dock and also with or without the KVM. Basically, in all of these cases, you have a problem:

1. laptop -> USB-C to DP 1.4 cable -> display
2. laptop -> CAC-1557 -> Club-3D DP 1.4 cable -> display
3. laptop -> TB4 dock -> USB-C to DP 1.4 cable -> display
4. laptop -> TB4 dock -> CAC-1557 -> DP 1.4 cable -> display
5. laptop -> USB-C to DP 1.4 cable -> KVM -> DP 1.4 cable -> display
6. laptop -> CAC-1557 -> DP 1.4 cable -> KVM -> DP 1.4 cable -> display
7. laptop -> TB4 dock -> USB-C to DP 1.4 cable -> KVM -> DP 1.4 cable -> display
8. laptop -> TB4 dock -> CAC-1557 -> DP 1.4 cable -> KVM -> DP 1.4 cable -> display

I guess the only thing you haven’t tried is shorter cables or a different computer?

Is there someplace in Windows that indicates the DisplayPort link rate to the display? I believe GPU-Z shows the link rate for AMD or Nvidia GPUs in the Advanced tab. I’m not sure about Intel GPUs.

DP 1.2 uses HBR2 link rate. HBR2 link rate is sufficient for HDR (10bpc) with 3440×1440@100Hz but maybe the display doesn’t indicate HDR support in the DP 1.2 EDID?

What if you force HBR2 link rate from the computer without switching the display to DP 1.2 mode? To do this, connect a DP 1.2 MST hub such as the CSV-6400.

 

[joevt]

If the GTX 1060 was limited to DisplayPort 1.2 (HBR2 link rate) then that would allow 576 MHz at 10bpc or 720 MHz at 8bpc. Either of which should be enough for two 2560×1440 70Hz displays (except maybe some unaccounted overhead could be too much for 10bpc).

The firmware update is not just about link rate. It fixes boot issues that can cause blank screens or hangs. But that shouldn’t matter for screens that are connected after boot? Actually, the firmware update doesn’t mention link rate so maybe it has nothing to do with that.

Oh well, glad the firmware update fixed your issue.

[joevt]

The iiyama displays are only 2560×1440 70Hz which only requires ≈283MHz.

The CSV-7200 should be able to do up to ≈864MHz 10bpc RGB.

Did you try connecting DP1, DP2, and HDMI without the CSV-7200?

Did you try connecting the iiyama displays only to the CSV-7200 and not connected to anything else with no other displays connected to the GTX 1060?

 

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