You can see on the U2414H operating system driver page that the U2414H was not tested/validated on the Apple proprietary hardware and operating system. All we can provide is "best guess" support. You should also ask the Apple users on the Apple Forum for troubleshooting help with their proprietary hardware and operating system and our monitor. Other Apple users on their Apple Forum stated that they used this TB to DP cable rather than our mDP to DP cable.
In theory, this is how it should be setup =
Apple PC TB/mDP out port --> U2414H mDP to DP cable --> #1 U2414H DP in port (DP 1.2 enabled)
#1 U2414H DP out port --> U2414H DP to mDP cable --> #2 U2414H DP in port (DP 1.2 disabled)
For my notes, send me via Private Message the following data = Monitor service tag numbers Monitor 20 digit serial numbers Monitor A0x revision
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