[joevt]

The product page for the CSV-1585 is at https://www.club-3d.com/en/detail/2647/displayport-hdmi_kvm_switch-dock_4k60hz_for_usb_type_c_inputs/

It says “Docking station with MST functionality(On MAC systems Only SST(Mirror Screen))”

macOS doesn’t support MST for multiple separate displays. If your Mac can boot into Windows or Linux, then the MST functionality may work in those OS’s (at least for Intel Macs – not sure about Apple Silicon Macs).

[joevt]

Does the box have the ULTRA HDMI Cable Authentication Label?

https://www.club-3d.com/en/detail/2460/ultra_high_speed_hdmi_4k120hz_8k60hz_certified_cable_48gbps_m-m_2_m_-_6.56_ft/

Did you try getting a replacement CAC-1372 cable?

[joevt]

There don’t seem to be any drivers or firmware updaters on the product page.

The dock contains only USB devices which connect via a USB hub to your laptop’s USB controller:

USB to SD Card reader
USB to Ethernet adapter
USB audio adapter

And a DisplayPort MST hub which connects to your laptop’s GPU.

You could try using an app like Driver Genius 24 to find updated drivers for your system.

[joevt]

What’s a Club3D PC1551?

[joevt]

I don’t know. I have zero experience with Synology NAS. Maybe trying googling for a solution.
  https://www.reddit.com/r/synology/comments/13kipn5/is_there_25gbe_usb_ethernet_adapter_that_works/

https://github.com/bb-qq/r8152

 

[joevt]

If it doesn’t work out of the box, then you may need to install drivers. There’s download links on the product page at:
https://www.club-3d.com/en/detail/2467/usb_3.2_gen1_type_a_to_rj45_2.5gbps_adapter_m-f/

[joevt]

Same issue as described at:

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 real solution except to get the Apple adapter.

[joevt]

Maybe the Chromecast needs an EDID override device (like Dr HDMI 4K?) so that it thinks the display is 4K60. Or maybe a scaler is needed to convert 594 MHz HDMI timing to 529 MHz Studio Display 4K timing. Or to convert YPbPr to RGB (though I think the CAC-1333 should be able to do color conversion?).

[joevt]

Seems suspicious. The product page makes a big deal about the certification. And there’s even an app to scan the certification sticker.

https://www.club-3d.com/en/detail/2509/ultra_high_speed_hdmit_certified_aoc_cable_4k120hz-8k60hz_unidirectional_m-m_10m-32.80ft/

2509_8.jpg

https://www.hdmi.org/spec21sub/ultrahighspeedcable

[joevt]

HDMI doesn’t have MST so there’s no way you’re going to get 4K60 or dual 1920×2160 60Hz signals into the display using HDMI input of the display which only supports 4K30.

The CAC-1331 converts HDMI to DisplayPort SST. It’s not smart enough to create dual 1920×2160 60Hz DisplayPort MST signal from an HDMI 4K60 signal. I don’t think any adapter is capable of doing that. I suppose someone could make an adapter using a sufficiently powerful FPGA.

PBP might be your only chance of getting 4K60. Have you tried it with separate outputs from your PC?
To split a single output from your PC you need some kind of video wall product. Does Matrox QuadHead2Go support splitting 4K60 into dual 1920×2160? Or any other similar video wall product? I don’t know.

[joevt]

Product page says “Mac OSX® Supports SST mode Only (Intel Based systems)”. Is that implying that Apple Silicon based systems support MST? I don’t think so. Perhaps Club-3D has not bothered to test Apple Silicon Macs.

Also, the name of the OS should be “macOS”.

https://www.club-3d.com/en/detail/2580/usb_gen2_type_c_triple_display_dp_1.4_alt_mode_smart_pd_charging_dock_with_120_watt_psu/

If you want a dock that supports more than one display for macOS, then you need a Thunderbolt dock or a dock that uses DisplayLink.

[joevt]

The capabilities of an MST hub are listed in the DPCD info. I made a utility for macOS to dump that info. https://github.com/joevt/AllRez   . It can also read DPCD info for displays and other MST hubs attached to the MST hub.

There should be similar utilities for Linux. DPCD info may be available in Linux from sysfs. I suppose the code in AllRez for dumping the DPCD could be ported to Linux.

[joevt]

Is there an MST hub that supports DSC decompression for 10bpc color depth (required for HDR)? All the Synaptics MST hubs I have appear to have DSC decompression limited to 8bpc.

DSC decompression is required for displays that don’t support DSC when you want to connect multiple such displays to an MST hub where the bandwidth would exceed the maximum bandwidth of a DisplayPort port without DSC. For example, three 4K60 8bpc displays is ≈39 Gbps but DisplayPort can only do 25.92 Gbps.

With DSC, 8bpc and 10bpc both end up being compressed to 12bpp (or whatever the target bpp is for your OS/driver combination). So one would think that connecting three 4K60 10bpc displays should be possible, but the MST hubs don’t allow 10bpc decompression. Maybe they don’t have enough processing power. I haven’t checked the latest MST hubs.

Below are some fwupd MST hub related discussions. Some of them list the MST hubs I have.

https://github.com/fwupd/fwupd/issues/1665
https://github.com/fwupd/fwupd/pull/2923
https://github.com/fwupd/fwupd/discussions/3562

 

[joevt]

Are the laptops that work with Windows 10 Pro the same laptops that have Windows 11 Pro? Do they have the same GPU? Do they have the same graphics driver versions?

Do the laptops detect the displays in Windows 11 Pro?

Did you check for graphics driver upgrades?

[joevt]

Does it not work with Apple default drivers?

Can you show USB info of the device from System Information.app USB tab?

Did you try the 2020 version at https://www.realtek.com/en/component/zoo/category/network-interface-controllers-10-100-1000m-gigabit-ethernet-usb-3-0-software ?

Maybe read the following and search for M1, M2, M3
https://gist.github.com/MadLittleMods/3005bb13f7e7178e1eaa9f054cc547b0

 

[Author]

Posts