Hi,
I bought P2715Q 4K monitor about two weeks ago and I am suffering a problem of waking up the monitor from power saving mode.
My build and set up:
Lenovo Workstation P500
Nvidia Quadro K2200 (One DVI and two DP), with latest driver. Single monitor setup
Windows 8.1 with all the updates
P2715Q monitor revision A01, manufactured in Mar 2015, monitor driver installed under windows 8.1, connected with DP to DP cable (also tried the stock DP <->mDP cable)
Problem =
In windows power settings, I allow monitor to go into sleep if there is no activity in 10 minutes. Then the monitor will give me a message on the screen "entering into power saving mode", then the screen goes to black and the power button LED starts dimming. This all works out as expected. When I get back to the desk and try to reactivate the monitor, the monitor just doesn't response. At this stage, the power button and all the function button on the monitor all lose their functions, I cannot even turn the monitor off by press or keep holding the power button. If I unplug the power cord and reconnect the cord, the monitor wakes up and function normally. This happened three times to me so far.
What I have done so far =
I have bought a better quality DP-DP cable and replaced the stock DP <->mDP cable, but not help to solve the problem.
I have used a file EDID and loaded it in nVidia Quadro Driver.
Researched the Web and manually amended settings in windows registry and solved the desktop re-arranging issue, but not this cannot wake up monitor issue
Disabled the DDC/CI function in the monitor
What is the problem? Do I need to call Dell support?
Thanks
JH