My new U2415 monitor loses the 1900x1200 resolution every restart - I have to turn it off, unplug and restart it - using a Display port cable with no power savings set. Of course when the 1900x1200 display is returned the desktop icon locations are not remembered. It is on Windows 10 and all drivers are installed. About to return it and get a Samsung.
Previously I had a Dell monitor for many many years with no problems.