- Joined
- Apr 5, 2016
- Messages
- 959
- Motherboard
- GIGABYTE Z170X-Gaming 7
- CPU
- i7-6700K
- Graphics
- GTX TITAN X
- Mac
- Classic Mac
- Mobile Phone
Thanks for this. You are saying the that the Dell UP3218K shows a 2560x2880 image stretched to the entire screen? This might suggest it can't support a 5K dual cable timing like the Apple 6K display.Here is the output.
With the mtdd file for the UP2715K the display shows up as a single display (instead of two) but the 5120 x 2880 resolution is stretched over the two DP inputs (so you have to switch input to see the other half).
Are you running Catalina?
Did you remove Apple's override file at /System/Library/Displays/Contents/Resources/Overrides/DisplayVendorID-10ac/DisplayProductID-4147? It contains edid-patches that remove the following timings:
Code:
[email protected] 130.742kHz 1030.25MHz h(30 10 160 +) v(3 5 40 -) 16:9 preferred
[email protected] 104.855kHz 826.26MHz h(48 32 120 +) v(3 5 41 -) 16:9 preferred
[email protected] 212.062kHz 856.73MHz h(48 32 120 +) v(3 10 85 -) 16:9
[email protected] 262.079kHz 1058.80MHz h(48 32 120 +) v(3 10 35 -) 16:9
Code:
Tiled display block (12h):
Capabilities: 0x82
Number of tiles: (2 x 1)
Tile location: (0, 0)
Tile dimensions: (3840 x 4320)