Sony VAIO VGN-FW - Manual (Page 143)

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Troubleshooting >
Display
What should I do if the LCD brightness of my screen changes?
❑ LCD brightness, adjusted by the Fn+F5/F6 keys, is only temporary and may be restored to the original level when your
computer returns to Normal mode from Sleep or Hibernate mode. To save your preference for the brightness, follow these
steps:
1 Right-click the power status icon on the taskbar and select Power Options.
2 Click Change plan settings on the right of the current power plan.
3 Click Change advanced power settings.
4 Select the Advanced settings tab.
5 Double-click Display.
6 Double-click Display brightness.
7 Click your desired item and adjust the LCD brightness setting.