For vista windows do these easy steps: 1) Start 2) Controll panel. " on right " 3) Personalization. " You should have it " 4) On the left top of this screen you might press on " Connect to a projector or other external display " 5) ajust the britness and any other options as you like. Tell me if that was helpful.
Go to your power options.Choose 'Change Plan Settings'. Move the slider to adjust the screen brightness.
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