Sony Support

Article ID : S500011255 / Last Modified : 11/04/2018Print

What to do if the screen brightness reverts to the previous state even after adjusting with Fn + F5?

    After adjusting LCD brightness using Fn + F5, it can restore to the previous status under the following circumstances.
    ※Only for models with  PowerPanel pre-installed.

    • Restart Operating System.
    • Exit Screen Saver program (password protect).
    • Exit Hibernate or Sleep mode.

    Note
    Brightness setting always takes PowerPanel mode setting as a standard.
    Base on that case, it is invalid to adjust LCD brightness by Fn+F5.

    ■ Versions before PowerPanel Ver.3.0
    1. Click Start-VAIO-Note Utility, and then click PowerPanel.

    2. When the application column cannot be displayed, right-click Power Panel icon in Task Bar, and then click Display Application Column.

    3. Right-click the selected mode setting icon, and then click Open in the menu.

    4. In the mode setting list that user opens, double-click LCD/Video-LCD Brightness, and set the Brightness Level.

    5. Save this change, and then close the mode setting.

    ■ Versions after PowerPanel Ver 3.0
    1. Right-click PowerPanel icon in Task Bar, and then click Edit/Create Mode.

    2. When the Mode Editor dialogue box appears, please adjust LCD brightness in LCD Brightness Level.
    3. Click Save to save the settings.

    4. Click OK.