How to enable and introduce the Vari-Bright function of Toshiba's new models using ATI graphics cards. Vari-BrightTM technology is an energy-saving technology that saves power by optimizing the brightness of the notebook computer panel. The principle is to save power by continuously tracking the image on the display and (when possible) reducing the brightness of the display panel. Color fidelity is maintained because Vari-Bright also adjusts the display panel's gamma level to compensate for reduced brightness. This feature is supported if your computer meets the following conditions:

　1, Run on battery mode.

　2. Only use the internal LCD display.

Solution:

1. Right-click a blank space on the desktop and select "Display Card Properties".

2. Click “PowerPlay” in the “Power” option.

3. Check "Enable Vari-Bright" and click "Apply" (the PowerPlay function needs to be enabled first). Click and drag the Vari-Bright slider to adjust the balance between image quality and power consumption.

For most AMD graphics cards, automatic brightness adjustment via Vari-Bright technology is done incrementally. When the monitor is primarily white (for example, using Notepad or Microsoft "9"/>Word ), may restore its original brightness to prevent it from looking too dim.

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