MBP stopped detecting external display, DisplayPort over Thunderbolt 3
External monitor is a Dell U2718Q. Message on the monitor says “No DP signal from device”.
This worked pretty seamlessly for awhile, but it stopped working entirely. I’ve tried powering off both monitor and laptop, updated to latest MacOS, tried different USB-C ports on the laptop, different DP ports on the monitor, reset SMC, PRAM, NVRAM. Still doesn’t work. Any suggestions?
Is this a good question?