Easiest way to drive LG UltraFine 4K Monitor with eGPU
Thanks for the heads up. / was missing from closing <b> tag. Interesting that forum software allows it to influence other texts. Should qualify for security / bug fix.
I'm about to get the cable. Can you please describe exactly how's everything setup?
Do USB C ports work from the monitor? Speakers?
Can you control volume and brightness with keyboard both on macOS and Windows Bootcamp?
I am trying to insert some screen shots but I have no idea how.
The mac mini will boot on the integrated card first, then will switch on the egpu once it passes a certain point in time in the boot process. The DP cable is plugged directly into the card, and the usb cable is plugged into the USB port of the RAZER box.
Here is a dropbox link.
This has given me hope. I have the new 24” LG UltraFine. I presume this cable should work with this monitor as well? It does TB3 over USB-C but also accepts video from USB-C from what I can see? Can anyone confirm?
does the brightness and volume control work in MacOS?
I want to move up to a 5k display - so I need to buy this GC-Titan Ridge card and insert it into my Razer Chroma expansion slot where the USB controller currently is located? How do I then hook up the 5k monitor to the egpu? Do I jumper the DP to the DP on the Titan Ridge card? do they work internally? Does this work and provide full functionality for the 5k display including use of the camera and speakers etc?
@jltawil I don't think the USB controller slot has been tested with four lane PCIe cards yet. Only single lane. You may need to cover up the other three lanes with tape, or use an x1 to x4 riser or cable, or use an externally powered riser that is not connected to a PCIe slot.
Two DisplayPorts of the GPU are connected to the mini DisplayPort inputs of the GC-TITAN RIDGE (or GC-ALPINE RIDGE) add-in card using the included short DisplayPort to mini DisplayPort cables of the add-in card.
This will not provide full functionality of the 5K display. Additional software that does not exist is required to enable PCIe tunneling of the add-in card.
So, here's my conundrum. I really do like the LG UltraFine 23.7". I would also like to use an eGPU with my MM18, since I imagine I'll run into issues editing video or RAW photos using the integrated GPU on a 4K display. The problem is that it seems like ONLY the vastly overpriced and non-upgradeable BlackMagic eGPUs have Thunderbolt out in a way that retains all of the features of the UltraFine display.
The alternative is using a different eGPU solution and plugging both the eGPU and the monitor into the Mac itself. I have two questions when it comes to this:
- 1) I understand this will result in a performance loss, but what sort of percentage am I looking at? That is, if I use an eGPU with an RX 580, is it going to perform like an RX 570? Or is it more/less drastic than that?
- 2) Will the macOS UI be accelerated as well in this sort of setup, or only apps which are told to use the eGPU?
Thanks in advance for any insight!
@atlas You can get the Huawei VR 2 cable and use it with any eGPU to drive the 4K UltraFine Display. Giztop currently has the best price for US customers. I got one from them and it took about a week for delivery.