MBP 2017 / Mojave 10.14 / DL 5.2.1 - Cn't extend monitoras

HeneryH · 01-10-2020, 06:35 PM

I have a MBP as noted in the subject line connected to a Lenovo 40A9 dock.

When I use the dock with my Lenovo laptop the laptop and the dock drive my two external DP monitors fine in extend mode. I actually get three (laptop +2)

When I connect my MBP, I an only mirror the two external monitors. I have seen a lot of google results that say the this OS/Driver combo should have enabled extend but I can't seem to figure it out.

I did the driver install and the two steps of permissions. I checked my system report and the driver is enabled in the stem report.

Am I missing something? Both external monitors are duplicates of each other.

01-10-2020, 06:35 PM	#1
HeneryH Junior Member Join Date: Jan 2020 Posts: 4	MBP 2017 / Mojave 10.14 / DL 5.2.1 - Can't extend monitors I have a MBP as noted in the subject line connected to a Lenovo 40A9 dock. When I use the dock with my Lenovo laptop the laptop and the dock drive my two external DP monitors fine in extend mode. I actually get three (laptop +2) When I connect my MBP, I an only mirror the two external monitors. I have seen a lot of google results that say the this OS/Driver combo should have enabled extend but I can't seem to figure it out. I did the driver install and the two steps of permissions. I checked my system report and the driver is enabled in the stem report. Am I missing something? Both external monitors are duplicates of each other. Last edited by HeneryH; 01-10-2020 at 06:44 PM.