RE: U2713H with PS3 is a no go?
You need to simplify the setup for troubleshooting.
* Turn off the monitor and PS3
* Disconnect ALL cabling from the monitor
* Reconnect only the monitor power cord
* Connect the HDMI cable from the PS3 to the monitor HDMI
* Turn on the monitor, press the Menu button, open Input Source, choose HDMI
* Turn the PS3 on