Sony VGN-TX series Personal Computer User Manual


 
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Troubleshooting
What should I do if the LCD brightness of my computer screen changes?
The LCD brightness setting, adjusted with the Fn+F5/F6 keys, is temporary and this adjustment is overridden by the setting
on the VAIO Power Management tab when another power scheme is selected.
To save this preference for the brightness
To do the following procedure, you must have administrator rights on your computer.
1 Click Start and then Control Panel.
2 Click Performance and Maintenance.
3 Click Power Options.
4 Select the tab for power scheme settings.
5 Select the desired power scheme from the drop-down list.
6 On the VAIO Power Management tab, select No change for LCD Brightness.
7 Click OK.
The preference for the LCD brightness adjusted with the Fn+F5/F6 keys is saved and the brightness of your computer screen
remains unchanged regardless of operating conditions.