[joevt]

The CAC-1333 can’t support width > 4096 and doesn’t support USB.

On the other hand, the CAC-1336 (just released) might support 5K and 6K (its supposed to support 8K30) but it’s not tested at those resolutions? For HDMI 2.0, 5K60 10bpc, 6K56 8bpc, 6K45 10bpc, and 8K30 8bpc require 4:2:0 chroma sub sampling. The Apple Studio Display and Apple Pro Display XDR only support RGB. 56Hz and 45Hz are not standard timings of the Apple Pro Display XDR and I don’t know if the XDR supports arbitrary refresh rates. I don’t know if the adapter can convert 4:2:0 to RGB… If it can, the operating system might not enable that feature. Even though the CAC-1336 might support width > 4096, the source HDMI devices might not.

The CAC-1336 also has a USB 2.0 input which might allow using the USB features of the display (audio, USB ports, camera, …) like the CAC-1332 did (discontinued?). Club-3d product page doesn’t mention this feature for the CAC-1332 but people have reported that the USB connection does support USB data and is not used just for USB power.
LG UltraFine 4K and 5K: Yes you can connect it to Windows computers via DP!!!

 

[joevt]

[quote author="DNP"]I just tried plugging one monitor into the USB-C and the other to thunderbolt and can make themwork as dual monitors. [/quote]

Good. Are they powered by Intel or Nvidia GPU?

[quote author="DNP"]Only problem now is power for my laptop.[/quote]

The CSV-1580 should solve that (if 60W is sufficient). What power does your normal charger supply?

When you get the CSV-1580, connect it to the Thunderbolt port and connect two displays. If two displays doesn’t work then you know the second display can be moved back to the laptop’s USB-C port.

 

[joevt]

HDMI and USB-C and Thunderbolt and built-in are supported by Intel? Or only some of them are supported by Intel and the others are supported by Nvidia?

Is there a USB-C port and a Thunderbolt port? Can you connect one display to the USB-C port and the other to the Thunderbolt port?

[joevt]

Do you mean like this? https://insights.club-3d.com/thread/flickering-problem-with-cac-1510-a-and-apple-cinema-display-30-on-mac-mini-m1/

I don’t think there’s a fix.

If you mean something else, then please post a picture of the issue.

[joevt]

The tech specs for the ThinkPad P15s says both the USB-C port and the Thunderbolt port can be used for charging. The CSV-1580 can support charging (60W) for the Thunderbolt port.

If you connect the CSV-1580 to the USB-C port instead of the Thunderbolt port, it should still support charging (60W) but it will only support one display and the display might be limited to two lanes of DisplayPort as the other two Super Speed lanes of the USB-C connection will be used for USB 3.0. The CAC-1510-A requires four lanes of DisplayPort to do 2560×1600.

[joevt]

ThinkPad P15s has Thunderbolt 3. Thunderbolt 3 on PCs doesn’t guarantee that two displays are supported from a Thunderbolt port, unlike Thunderbolt 4 which requires support for two displays from a Thunderbolt port.

The tech specs say the USB-C port used for charging also supports a display so you can try that with one of of the CAC-1510-A.

The tech specs for the ThinkPad P15s don’t say how many displays are supported from the Thunderbolt port. They also don’t say what GPU (Nvidia or Intel) is controlling each display output (built-in, USB-C, Thunderbolt, HDMI). Connect a display to each port, use the Device Manager (view by connection type), to find each display and see what GPU the display is connected to. Let us know the results.

If you find that the CSV-1580 Thunderbolt 4 hub doesn’t allow connecting two displays using the two CAC-1510-A adapters and you can’t use the Thunderbolt and USB-C port simultaneously, then you might try using the HDMI port for one of the displays using a CAC-1332, CAC-1333, or CAC-1336. I prefer the CAC-1332 because it also allows USB 2.0 (not useful in your case because you’re not connecting a USB-C display). The CAC-1333 doesn’t support USB 2.0 but it may be more convenient because it doesn’t require an extra power connection. Both the CAC-1332 and CAC-1333 are limited to ≤ 4096 width but that’s good enough for your 2560×1600 displays. Hopefully the CAC-1336 allows USB 2.0 connection and width > 4096.

[joevt]

You would have to test them to be sure.
1) Test with AMD or Nvidia to see if they support 4:2:2 8bpc.
2) Test with Intel to see if it can output 4:2:2.

Test 1 isn’t helpful if test 2 fails, but it would tell us why test 2 fails.

[joevt]

Intel UHD Graphics 620 is limited to DisplayPort 1.2 which has max 17.28 Gbps bandwidth to a USB-C dock that supports only USB 2.0 (Cable Matters makes such docks) or 8.64 Gbps to a USB-C dock that supports USB 3.x (which is the category that the CSV-1568 belongs to).

Also, DisplayPort 1.2 doesn’t support 4:2:0 or DSC.

So there’s no way for you to connect one 4K60 display to the CSV-1568, let alone two. The best you could get is one 4K30 display (actually, one 4K60 display may be possible using 4:2:2 8bpc at < 540 MHz but that might be difficult to achieve with Intel Graphics Command Center and the display would need to have support for that mode).

4K30 is between 257.66 MHz (CVT-RB2) and 297 MHz (HDMI 1.4). Two of them could work if they support 4:2:2 8bpc at < 270 MHz. I’m just not sure if the iGPU would output that mode. I would test with AMD or Nvidia GPU first.

[joevt]

Pictures of the problem at https://insights.club-3d.com/thread/flickering-problem-with-cac-1510-a-and-apple-cinema-display-30-on-mac-mini-m1/

[joevt]

Pictures of a different issue at https://insights.club-3d.com/thread/flickering-problem-with-cac-1510-a-and-apple-cinema-display-30-on-mac-mini-m1/

[joevt]

[quote author="Emiaostein"]
Using CAC-1334 to connect PS5 and LG Ultra 5K monitor, but the monitor does not have any picture
[/quote]

There are two LG UltraFine 5K models. Only the latest (27MD5KL-B) can accept a USB-C DisplayPort Alt Mode signal. The first model (27MD5KL-A) only accepts Thunderbolt input. Even so, the LG has no buttons and might not automatically turn on without a USB signal.

The CAC-1332 includes a USB 2.0 input and is therefore superior to any other HDMI to USB-C solution that does not include USB input.

[quote author="Baak"]And I believe Club 3D made that end of life. But if you can find one maybe try that?[/quote]

If you can’t find the CAC-1332, then the SIIG HDMI to USB-C Port 4K 60Hz Converter Adapter may be an option but may also be end of life or out of stock.

 

[joevt]

You may need to do some math
https://insights.club-3d.com/thread/csv-1568-second-hmdi-screen-only-vga-res/

The CSV-1564 only supports 8.64 Gbps of DisplayPort 1.2 bandwidth. It doesn’t support DSC. DisplayPort 1.2 supports RGB, 4:4:4, and 4:2:2, but not 4:2:0.

1080p60 is between 133.32 (CVT-RB2) and 148.5 MHz (HDMI 1.1).

You need to lower bandwidth of each display by reducing refresh rate or bits per pixel.

[joevt]

In Device Manager, change the view to “By Connection” so that the Ethernet and audio will appear has USB devices connected to a USB hub.

The specs at:
 https://psref.lenovo.com/syspool/Sys/PDF/datasheet/ThinkPad_L15_Gen_1_Intel_datasheet_EN.pdf

says:

“USB-C 3.2 Gen 1 (power delivery and DisplayPort), 1x USB-C 3.2 Gen 2 (power delivery and DisplayPort”.

I would try connecting to the USB-C 3.2. Gen 2 port. First I would try connecting a display directly (using a USB-C to DisplayPort adapter or cable if necessary) without the hub to make sure the port supports DisplayPort Alt Mode.

Does your laptop have Intel UHD Graphics in processor, or optional AMD Radeon 625 2GB?

[joevt]

16.2 Gbps is the bits on the wire. It uses 8b/10b encoding, so the actual data bandwidth is 12.96 Gbps.

To find the bandwidth used for each display, multiply the pixel clock with the bits per pixel (bpp).
bpp is bits per component (bpc) times 3.
bpc is usually 8 or 10 but can be as low as 6 in Windows.
bpc can be changed for AMD or Nvidia GPUs but probably not for Intel GPU.

One method to reduce bpp is to use chroma subsampling 4:2:2 (16 components per 8 pixels) or 4:2:0 (12 components per 8 pixels). This can reduce bpp down to at least 12bpp.

If the GPU supports DSC, then the bpp can be as low as 12 or even 8. For macOS, I know that 12bpp is the default DSC target bpp. I don’t know what DSC target bpp the Windows drivers for AMD or Nvidia use.

4K60 is 522.62 MHz pixel clock (using CVT-RB2 timing).
DSC@8bpp: 4.18 Gbps.
DSC@12bpp or 4:2:0@8bpc: 6.27 Gbps.
DSC@15bpp or 4:2:0@10bpc: 7.84 Gbps.
DSC@16bpp or 4:2:2@8bpc: 8.36 Gbps.
DSC@18bpp or RGB/4:4:4@6bpc: 9.4 Gbps.
DSC@20bpp or 4:2:2@10bpc: 10.45 Gbps.
DSC@24bpp or RGB/4:4:4@8bpc: 12.54 Gbps.
RGB@10bpc: 15.68 Gbps.

4K60 HDMI timing is 594 MHz.
6bpc has banding unless dithering is used.
8bpc is very difficult to detect banding.
10bpc is required for HDR (at least in macOS – not sure about Windows) 
12bpc may be possible but I think it’s overkill so I didn’t include it.
4:2:0 has lower horizontal & vertical color resolution.
4:2:2 has lower horizontal color resolution.
DSC is visually lossless so it may be better than 4:2:0 and 4:2:2 at least for color.
DSC usually requires FEC which adds some overhead.
MST for multiple displays adds some overhead.

CSV-1566 only supports DisplayPort 1.2 so it doesn’t support DSC. But maybe that’s fine if your GPU doesn’t support DisplayPort 1.4 (pre 10th gen Intel CPUs).

You need to describe what model computer / GPU you have.

[joevt]

You can PM me at macrumors.com and post it in that thread about 8K. Just the hex string is sufficient.

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