Adjusting the lcd brightness automatically, User guide, How to use – Sony SVE14A390X User Manual
Page 290: Troubleshooting list of topics, E series

Personal Computer
E Series
SVE14A3
Adjusting the LCD Brightness Automatically
Your VAIO computer measures ambient light intensity to adjust the LCD brightness
automatically.
1. Start VAIO Control Center and select Image Quality. (See
Searching/Starting Apps, Settings, or Files
to start VAIO Control Center.)
2. Enable/disable the automatic adjustment setting in Display Brightness.
Hint
During the setup or recovery process, the automatic brightness adjustment
function may not work and the LCD brightness may change regardless of
ambient light intensity.
Ambient light intensity is measured by the ambient light sensor. Blocking the
ambient light sensor may decrease the LCD brightness.
Related Topic
Parts and Controls on the Front
Changing the LCD Brightness
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