I am on a Windows 10 desktop with a Radeon HD7750 (by VisionTek) card installed and connected to three HP BW22 monitors with DVI cables. The power settings are supposed to put the monitors to sleep after 5 minutes (I've tried other time settings) but they do not. I have to turn them on and off manually to avoid them running all night. I have updated drivers installed. Am I missing something in the monitor or card setup to enable the sleep function?
Thanks for any suggestions.