Lack of resolution 4 K P2715Q. Change dynamic range to full

Hello
A few weeks ago, I bought the monitor P2715Q and now it's finally here.

Once I turned on my computer, it automatically recognized the monitor and had 4 k resolution works just by plugging basically.

After a few minutes, the monitor went to 'power saving mode' (who knows why! because I was surfing on the net) and could not go on.

I rebooted the computer and the screen was on 4 k resolution as before. Tried to test the resolution on an old game and at first everything was fine. A few minutes after, the screen went black, had to close the game (by pressing a button on console - couldn't see anything). The bone was black also and still... I rebooted the computer! (message on the screen 'power saving mode')

The second time I restarted, the display came not with the 4 k resolution, now the recommended and maximum resolution is FULLHD (1920 x 1080).

My first thought was that the driver has been corrupted. I uninstalled the driver through the Device Manager, downloaded the latest drivers for my video card and monitor but nothing!

I do not see the 4 k resolution

Data sheet:
Video card: Gefoce GTX 660; 355.82 driver version (this video card supports 4K resolutions)
OS: Windows 7 Ultimate edition; 64-bit (SP1)
The monitor drivers, I tried: DELL_P2715Q-MONITOR_A00 - 00_DRVR_9XV8F.exe; DELL_P2715Q-MONITOR_A00 - 00_DRVR_7XVDJ.exe
Display port: entry CDM

Help, please!

I went to a local store of DELL in order to test my monitor.

Monitor works fine now.

The following setting did the trick (on the NVidia settings):

Output dynamic range: full

By default, she had limited, change it to lot of my video card could support 4 k @ 60 Hz resolution.

Tags: Dell Peripherals

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