MacBook Pro stopped recognising Lenovo display port monitor (via Dell hub)
Since I got my MBP about 18 months ago I've been running three external monitors on my desktop. I've got a Dell D3100 dock which has 2 HDMI connections and 1 Display Port and connects to the Mac via USB.
This has worked fine for a year and a half. Now all of a sudden the Lenovo monitor (my main one) which connects to the hub via DisplayPort isn't being seen. The monitor comes up with a no cable attached message.
I've gotten around it by plugging it directly into the HDMI port on the Mac - but the whole point of the dock was to just have one cable to connect disconnect and keep tidy. I'm quite frustrated because I'm not sure what changed. I recently upgraded the OS but that was after I experience the problem. Have also upgraded the DisplayLink software.
Anyone got an idea what may be going on?