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‎08-17-2020 10:51 AM

HP Recommended
Product: Thunderbolt G2 120W
Operating System: macOS 10.14 Mojave

I have a company provided Macbook pro 2017 with Mojave and using with Thunderbolt dock g2 120W. I was using an older monitor with VGA port connected to dock and was working fine. Recently I purchased a new monitor (LG 27UL500-W) which has a display port and HDMI ports. When connecting the monitor with the laptop (via dock), it always shows me this "No Signal" and monitor goes to stand-by. Weird thing is the laptop actually recognizes the monitor in System Preferences. It shows "LG HDR 4K" and shows the settings for the monitor but monitor never gets the signal and powers off. 

 

I tried to check if the monitor had any issues by connecting through HDMI to an older laptop and it works fine. So, I think monitor is good. 

 

Another weird thing is if I connect both old monitor (VGA port) and new monitor (Display port) both works and display is actually mirrored.


I can share more information or pictures if wanted. Any help is appreciated. 

 

Thanks!

1 person had the same question
1 REPLY 1

‎08-18-2020 12:09 PM

HP Recommended

I bought a USB-C to DisplayPort cable and now its working fine. Don't know why DisplayPort -> DisplayPort wouldn't work. Any way, if someone have a similar issue, use a different type of cable.

1 person found this reply helpful
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