This article provides information on serial number service tag and regulatory stickers are no longer found on the outside of the dell ultrasharp monitor.
Dell monitor u2414h no displayport cable.
Your cable must be connected to any of the two displayport in port not displayport out.
Turn the monitor off disconnect every cable from the monitor including the power cord press and hold in the monitor power button for 15 seconds reconnect all cabling to the monitor and the computer turn the monitor on then the computer.
Cable connected to the wrong displayport input.
No display port cable.
Other possible dell u2414h problems causes.
Locating the serial number service tag and regulatory stickers on dell ultrasharp monitors.
The default cable that is packaged with dell displayport capable displays is the mini displayport mdp to displayport dp cable if your system does not support a displayport connection you must purchase the appropriate cable for your system.
You may connect them in any one of those two.
Many monitors will have both a mini displayport and a standard displayport input port.
Checked all cables re booted same thing.
The display goes into power save mode.
I reeived my 8700 and 2414h set them up per the included schematics and receive the same message on the monitor.