Troubleshooting Computer Monitor Dimming


When a computer monitor screen gets dim, it could be due to several different reasons. The brightness settings may need to be adjusted, or the battery capacity levels may need to be individually set. Other causes may not be so easily identified at the surface. Productivity is adversely affected if the issue is the not addressed swiftly. Luckily, using some basic techniques, you can quickly correct computer monitor dimming.

Check the Brightness Setting

  • Select the "Control Panel" from the "Start" menu. Next, click "Performance and Maintenance" and then click on the "Power Saver" icon. Go to the "Basic Setup" tab and move the slider to a different level (from 1 through 8, depending on your computer model). Move it to the right to a higher level to show a brighter monitor display, or move it to the left to a lower level for a dimmer screen. As you move the slider, the screen should actually dim or brighten, allowing you to preview the level you select. Otherwise, for other computer models, you may have to make a couple more adjustments to get the right customized display to suit your needs. Click "OK" to accept the changes.

Check the Battery Capacity Levels

  • If your monitor seems to become dim after a period of time while your are using the computer, change the battery capacity settings to keep the display screen vivid at all times. To do this, go to the Basic Setup tab. Get there by following the steps in the section above, "Check the Brightness Setting." Next, click the "Setup" button located next to the brightness level indicator. Even though your computer model may differ, you should have an option to further fine tune your monitor settings. If not, move on to the next section, "Troubleshooting Assistance." Otherwise, after pressing "Setup," adjust each setting by moving the slider across, left or right, to dim or brighten based on battery capacity. If you have a "Release" button or similar button that performs the same action of keeping all of the levels the same, verify that this level is set correctly.

    Consider increasing levels of brightness or decreasing the levels of dimness based on the battery usage levels. For example, if you set the lowest battery capacity setting to a lower level of brightness, it will use less power and dim the screen. This is useful if you are using a laptop and would like a warning before the lights out, say after several hours of computer use without an AC adapter. On the contrary, if you set the lowest battery capacity setting to a higher level of brightness, it will use most of its resources to brighten the monitor. If you are adjusting each battery capacity setting, do not press the "Release" button. It will make all settings equal levels. Instead, click "Apply" and then "OK" to accept the new settings and exit the Basic Setup dialog box.

Troubleshooting Assistance

  • If the monitor issue continues, use the troubleshooting tool to help resolve it. To access it, select "Control Panel" from the Start menu and then press "Appearance and Themes." Press "Display" and then go to the Settings tab, press "Troubleshoot" and then follow the steps as directed.


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