archer261 wrote:
Theyre... the same thing? lightning and minidsplay look the same, for the old version. in anycase, there is a minidisplay port cable in the mac, and an hdmi in the monitor. sorry for the confusion!
do i need a minidisplay compatible monitor for the upscaling to function?
Thunderbolt 1 & 2 use the same physical connector as Mini DisplayPort. All Thunderbolt 1 & 2 ports that are built into Macs have the ability to sense whether Thunderbolt accessories are plugged in. This lets them automatically adjust themselves to support either Thunderbolt accessories or Mini DisplayPort ones.
Sounds like you have a Mini DisplayPort to HDMI adapter or adapter cable.
If it is a one-piece adapter cable, check the maximum resolution it supports. If there is an adapter and a separate HDMI-to-HDMI cable, make sure the HDMI cable is one that can support 2.5K resolution. (Some HDMI cables are only adequate to drive HDTV sets with resolutions of 1920x1080 or less.)