The PG279Q is not always going to sleep when the PC goes to sleep. Oftentimes the PC and the other monitor are in Sleep mode, but the backlight on the PG279Q is still on; it's quite visible as it ...

If the monitor displays Windows without difficulty on another computer and doesn't go into Sleep mode, continue troubleshooting on your computer.

If your second monitor goes to sleep on your Windows computer and doesn't wake up, you can follow these tips to get rid of this problem.

Is your computer monitor no longer sleeping when it's supposed to? This is a problem I ran into and couldn't figure it out—until I found one simple command that revealed everything.

Disable Deep Sleep on Monitors Some monitors, especially Dell monitors, have a feature called Deep Sleep, which lowers the power usage of your monitor even more than going into regular standby mode.

I've got Dual monitor on my EVGA ti4400, I would like to have them power down after 10 min of my not being at my computer. The problem is that when they do about half the time they won't "wake ...

Windows 11/10 goes to Sleep too early or quickly Some people complain that their PC gets into sleep mode too quickly, even though the power settings are set for a higher timeout.

Some people have reported problems with their Macs not going to sleep immediately when they set them to do so.

Overheating: If your computer or graphics card is overheating, it may cause your monitor to enter power save mode as a safety measure.