The basic rule of computer screen brightness is: the screen brightness is best adjusted to be similar to the brightness of the surrounding environment, not too bright or too dim. When the surrounding light is very bright, you need to increase the brightness so that you can see the screen clearly. When you are in a dark environment, you need to darken the screen to avoid hurting your eyes.
If the screen brightness is not suitable, it will cause eye fatigue and vision problems. However, the surrounding lighting conditions are constantly changing, and we need to adjust the screen brightness frequently. On the Internet, there are many tutorials on the brightness adjustment of Windows 7. This is really annoying, but by using the third-party application CareUEyes, you can easily adjust the brightness on Windows 7.
CareUEyes is an eye protection software that can easily help you adjust the brightness on Windows 7. You can use the brightness slider to adjust the brightness.
Swipe to the left to decrease the brightness, and to the right to increase the brightness. CareUEyes also supports hotkeys to adjust the brightness. CareUEyes has eight preset modes, each of which can set different brightness for day and night. CareUEyes will help you switch the brightness according to the preset sunrise and sunset time.
You can directly select the preferred mode or modify the preset brightness by the slider. Method 2. Type device manager into Start. This will search your computer for the Device Manager program. Expand the "Monitors" category. You may have to scroll down to find this option. Select the monitor below the "Monitors" category. When you expand "Monitors", you should see a monitor name indented below it; click this monitor to select it. Click the Action tab. It's at the top of the Device Manager window.
Click Properties. This option is at the bottom of the Action drop-down menu. Doing so opens your monitor's properties. Click the Driver tab. It's at the top of the Properties window.
Click Uninstall. It's near the bottom-left corner of the window. Wait for the driver to uninstall. This only take a moment. Once the driver has uninstalled, your Device Manager list will refresh, and you will notice that the "Monitor" category is gone. Click the "Scan for hardware changes" button. It's the square, computer monitor-shaped button at the top of the Device Manager window. Doing so will reinstall and update the driver that you just removed. Verify that your monitor appears back on the list.
Once the Device Manager scans for changes, it will automatically reinstall the basic Microsoft driver for your monitor. This should re-enable the brightness slider. Reboot your computer. This may not be necessary for your changes to take effect, but can't hurt and may save you a step later. Try to adjust your brightness. Once your computer reboots, click the Power Options button in the System Tray to find your restored brightness options.
If you still don't have a brightness slider, your graphics adapter may not support it. You can try to update the drivers for your graphics adapter , or you can try to upgrade to Windows You can find it in "control panel. Yes No. Not Helpful 39 Helpful I was reducing the brightness on the monitor and it went all black.
How do I fix it? First, make sure you didn't turn the brightness all the way down. If that's not the issue, reboot your PC or try to update your graphics driver. Not Helpful 25 Helpful Include your email address to get a message when this question is answered.
By using this service, some information may be shared with YouTube. Almost every laptop has a "Brightness Up" key and a "Brightness Down" key on the keyboard. These keys are usually found at the top of the keyboard. You may have to hold down the Fn key to use them. Helpful 3 Not Helpful 0.
High screen brightness will drain your computer's battery faster than will lower brightness settings. Helpful 1 Not Helpful 0. You Might Also Like How to. How to. About This Article. Written by:. Co-authors: Updated: May 6, Categories: Windows 7.
Deutsch: Mit Windows 7 die Helligkeit deines Computers steuern.
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