Sony VGN-FS625B VAIO User Guide - Page 191
What should I do if the brightness of the screen changes?, What should I do if the external display
UPC - 810247016197
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nN 191 Troubleshooting What should I do if the brightness of the screen changes? The brightness of your screen when adjusted with the Brightness button and 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. 1 Click Start and then Control Panel. 2 Click Performance and Maintenance. 3 Click Power Options. 4 On the Power Schemes tab, select the desired power scheme from the Power schemes list. 5 On the VAIO Power Management tab, select No change under Plugged in and Running on batteries for LCD Brightness. 6 Click OK. The preference for the brightness adjusted with the Brightness button or the Fn+F5/F6 keys is saved and your screen brightness remains unchanged regardless of operating conditions. What should I do if the external display (or TV) does not display anything? If you change the log-on user with the Fast User Switching function after your computer started, you will not be able to select a display by pressing the Fn+F7 keys.