Got a great price on one of these ultrawides. However its not filling the screen. I have updated all drivers on windows and GPU: RX580. Resolution is set at 2560 x 1080. With everything updated why wont this monitor fill the entire screen?
What do you mean it doesn't fill, are you saying that the display of the desktop is in a smaller window on the screen that does not go all the way to the edges?
Go into the catalyst software and go to your monitor, then go to scaling options, then try moving the slider.
otherwise you might look inside the OSD of the monitor for any scaling settings.