The mtdd seems to indicate that it supports both dual cable DisplayPort 1.2 (5120x2880) and dual cable DisplayPort 1.4 (6016x3384) modes with refresh rates of 60, 59.94, 50, 48, and 47.95 Hz. The mtdd file belongs to product ID ae2e. Both sets of files have stuff I haven't seen before. The product ID is ae2f but there also exists product ID ae2e. Strangely, there are separate pictures for landscape and portrait. tiff icon that looks like the XDR display or grep for XDR). The Apple Pro Display XDR (6K display) is also probably a dual cable DisplayPort 1.4 display (because DisplayPort 1.4 and dual DisplayPort 1.2 are not enough for 6K60 10 bpc). Looking in the Apple overrides folder (DisplayVendorID-610) in Catalina, I see that files for the Apple Pro Display XDR (6K display) have been added (find the. mtdd file like there is for the Dell UP2715K (DisplayProductID-40b6). System/Library/Displays/Cotents/Resources/Overrides/DisplayVendorID-10ac/DisplayProductID-4147īecause there's no corresponding. There does not appear to be support for dual cable mode in macOS Catalina for the Dell UP3218K:

There was an attempt to get the Dell UP3218K working but I don't think it went all the way:

Single cable DisplayPort 1.4 supports 120Hz.

I have a Asus XV273K which is a 4K 144Hz dual cable DisplayPort 1.4 display that I'm trying to get working at 144Hz.

Quartz debug mac os 10.12