To turn on a Dell monitor, press the power button located on the bottom right or back bezel of the monitor. After pressing it, wait 3 to 5 seconds for the screen to respond. A solid white or green power LED light means the monitor has power and is receiving a signal from your computer, while an amber or orange LED (blinking or steady) means the monitor has power but is not receiving a video signal.
If your Dell monitor won't turn on (LED is off)
When the power LED is off, the monitor is not receiving power. First, check the power cable by plugging it securely into a wall outlet and the monitor itself. To rule out a faulty power strip or surge protector, plug the monitor directly into a wall outlet, bypassing any power strips or surge protectors, as these can sometimes fail. If the monitor still has no power, perform a Dell power reset: turn off the monitor, unplug the power cable from both the monitor and the wall, hold the monitor's power button for 30 to 60 seconds to drain residual power, then reconnect the cable and turn the monitor on. This clears any residual charge that may be preventing the monitor from starting.
If the monitor has power but no image (LED is amber)
An amber or orange LED means the monitor is receiving power but no video signal. Check the video cable (such as HDMI, DisplayPort, or USB-C) to ensure it is securely connected from your computer to the corresponding port on the monitor. If the computer is in sleep mode, move the mouse or press a keyboard key to wake it up. To isolate the fault, run the Dell Built-In Self-Test (BIST): turn off the monitor, disconnect all video cables, then turn the monitor back on. If the monitor displays a test pattern, the monitor is working and the issue is with the computer or video cable. If no test pattern appears, the monitor itself may need service.
Using Dell Power Button Sync with a laptop
For Dell monitors connected to a laptop via a USB Type-C cable, the Dell Power Button Sync feature can turn both devices on simultaneously with a single press of either power button. This is especially useful if you want to streamline your startup routine and avoid pressing separate buttons for each device, or if your laptop's power button is broken and you need another way to turn on dell laptop without power button. To enable this feature, access the monitor's on-screen display (OSD) menu, go to "Display," and set "Dell Power Button Sync" to "On." Note that this feature requires updated monitor firmware (released since January 2024) and an up-to-date BIOS on the connected computer.
