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1 Rookie


2 Posts


April 16th, 2024 19:51

U3415W, how to connect a new computer?


I was allowed to borrow a person's office for a few days. I would like to use my own laptop, keyboard/mouse, but I would like to connect to the screen which is u3415w. I have my own HDMI cable, and that slot in the monitor is not taken. However, when I connect my laptop, I cannot see how I can change the source from DP to HDMI? Usually there is a menu button, but here there are 4 black dots in the bottom of the screen - when I touch them, a picture of a lock appears on the screen. Removing the DP cable did not help either, and the monitor did not switch to HDMI. This is very confusing for me - is there a menu button somewhere, and if not, how can I change the source?


Community Manager


54.5K Posts

April 16th, 2024 20:02

Open the online U3415W User's Guide to page 51. Read the instructions to Unlock the Menu.

See page 10 which shows you should be connecting to the #3 HDMI port.

1 Rookie


2 Posts

April 17th, 2024 15:02

@DELL-Chris M​ Thank you so much! It worked.

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