How to adjust the brightness on a monitor?

Modified on Sat, 31 Jan at 5:03 PM

Overview

Adjusting your monitor’s brightness helps improve eye comfort, visibility, and overall image quality. Whether you’re working in a bright room or a dim environment, you can fine‑tune brightness through your monitor’s On‑Screen Display (OSD) menu

Before You Begin

Important Note About OSD Differences

ViewSonic monitors use different OSD menu layouts depending on the model. This means the button labels, joystick controls, and menu names may vary slightly from what you see in this guide. Verify with your model's User Guide. However, the brightness setting is always located within the Picture or Brightness/Contrast section of the OSD.

Adjusting Brightness Using the OSD

Monitors with Physical Buttons

Press the Menu or OSD button on the monitor.
Use the arrow buttons to navigate to Brightness/Contrast or Picture.
Select Brightness.
Increase or decrease the value to your preference.
Press Exit to close the menu.

Monitors with a Joystick Control

Press the joystick located on the back or underside of the monitor.
Move the joystick to highlight Brightness or Picture.
Adjust the brightness level.
Press the joystick again to confirm.

Model‑Specific Considerations

Some models include features that may affect brightness control:

Eco Mode Limits maximum brightness. Disable it if brightness cannot be adjusted.
Auto‑Brightness / Ambient Light Sensor Automatically adjusts brightness based on room lighting.
Picture Presets (e.g., Game, Movie, Web) Certain presets may override manual brightness settings.

If brightness appears locked or unresponsive, switching to Standard Mode usually restores manual control.

Troubleshooting

Brightness Option Is Grayed Out

Disable Eco Mode in the OSD.
Turn off Adaptive Contrast or Dynamic Contrast.
Change the Picture Mode to Standard.

Screen Still Looks Dim After Adjusting Brightness

Ensure Power Saving Mode is off.
Check if HDR is enabled — HDR can control brightness automatically.
Verify the video cable is securely connected.

Examples of various OSD:

For additional questions, please contact ViewSonic's Support by submitting a support ticket HERE or by Phone: US: 800-688-6688, CAN: 866-463-4775. ViewSonic’s call center hours: M-F, 6 AM - 6 PM PST