Question: external monitor on MacBook Pro 2017, 15 inch
I have a MacBook Pro 2017, 15 inch, fully optioned, which won't support my NEC Multisync PA272W professional monitor. My MacBook Pro contains the I7 CPU, Radeon Pro 560 4096 MB option in addition to the Intel graphics, 16Gb of RAM, and a 2Tb SSD. I am running macOS High Sierra, Version 10.13.4, and the machine seems to operate perfectly in every other respect.
I cannot get greater than 1920x1280 resolution from the MacBook Pro. I am using the Apple USB-C Digital AV Multiport Adapter connecting to the monitor through an HDMI cable.
The same cable into the same monitor generates the full 2560x1440 resolution when plugged into my Mac Mini mid-2011, or a Dell desktop, so I feel confident that there are no problems with the monitor or the cable.
The NEC PA272W monitor is a 27" professional unit designed to support detailed color calibration and a native resolution of 2560 x1440 for photographic and video applications. Using it with this MacBook Pro is important to me. I have found posts describing difficulty obtaining 4k monitor support from this MacBook Pro, but 2560x1440?
What am I doing wrong?
MacBook Pro TouchBar and Touch ID, macOS High Sierra (10.13.4), 16Gb RAM, 2Tb SSD