P2415Q does not turn on the connection with display port cable

Hello

I have computer with Sapphire hd 7970, there display port and HDMI outputs.

I plugged the cable I got with the monitor for mini DP DP and it worked well for a week,

Today, I turned on my computer, that the computer turns on I hear the windows starting but there is

no signal on the screen, so I tried to connect it with the second DP cable I have but it still does not work.

I also connected the computer to another monitor DP cable and it works fine.

Please notify.

Thank you.

* Turn off the monitor
* Disconnect all cables from the screen, including the power cable
* Press the power monitor in pendant button 15 seconds
* Reconnect monitor cables and re - test

Tags: Dell Peripherals

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