P2419H, MacBook Pro, not connecting using adapter

Question

Hello, This is really frustrating me and I've tried almost all solutions on the web. I have a MacBook Pro and a Dell P2419H monitor with the following condition: Mac: MacBook Pro (15-inch, 2016) running MacOS Catalina 10.15.7. Monitor: Dell P2419H Cable: 3m/9.8ft long HDMI cable Adapter: USB Type-C to HDMI adapter 3in1 USB Type-C adapter --> retail 3m/9.8ft HDMI to HDMI cable --> P2419H HDMI in port I just bought the Dell monitor and connected it to my mac using the external adapter mentioned above. Initially, the mac wouldn't even detect the external monitor. However, after messing around a bit, it got detected, but the dell screen doesn't show anything (says not detected signal). HELP please.

DELL-Chris M · Answer

Dell never validated longer cabling with this monitor. We validated the standard 1.8m/5.9ft HDMI to HDMI cable. So I would start by testing a shorter HDMI to HDMI cable.

mohamad-mneimneh · Answer

Hi, sorry didn't know about that. Will check and revert to you. Thanks!

DELL-Chris M · Answer

For further clarification, we can see in the online P2419H User's Guide page 16 the provided/validated cables. They are all the standard 1.8m/5.9ft length. The supported Operating system drivers are here.

mohamad-mneimneh · Answer

Hi, I just used a 1.5m HDMI cable. Even that didn't work..

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