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

Ar0247 · 05-04-2024, 10:09 AM

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

ScreamCZE · 05-06-2024, 08:14 AM

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.

05-04-2024, 10:09 AM	#1
Ar0247 Junior Member Join Date: May 2024 Posts: 1	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

05-06-2024, 08:14 AM	#2
ScreamCZE Member Join Date: Jun 2018 Posts: 46	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.