Macbook pro 2012 Catalina 10.15.7 - USBC-A Dock - 2nd HMDI not picking up.
 

Hey all.

I am trying to get dual external displays to work on Macbook pro 2012 retina Catalina 10.15.7.

Purchased Alogic Mini Dock DV3 and using it via USB-C to USB-A adapter (supplied with Alogic). Installed Display Link Manager and have only 1 HDMI output being recognised through the dock. Have tried reinstalling Display Link etc with no luck.

I have previously used my dual external displays with direct connections working fine (1 thunderbolt to HDMI, 2nd straight HDMI) and works fine.

Any ideas what is going on?

Is this a Mac to USB A dock limitation?

Any other suggestions......i.e. get a Thunderbolt 2 dock? Will this be better than USB C to A dock?

Cheers for the helps guys.

Ak

Hi,

Alogic does not mention it explicitly in their manual, but it is suggested that one of the HDMI ports is using Video over USB-C, which will not work over USB-C.