I just got a new Vaio laptop. It is great.
However, the ambient light sensor dims the screen brightness and prevents me from changing it.
Is there a way to disable the ambient light sensor and go back to manual screen brightness?
Look under the Vaio Control Center » Display » Automatic Brightness Settings and uncheck the "Adjust brightness automatically" option.
If that doesn't work, go to the graphics properties control center: Right click on the Desktop home screen and select "Graphics Properties" > select the "Power" tab > select "On Battery" > and under "Display Power Saving Technology" click OFF
In case the solutions from the main answer are not available (formatting the drive and reinstallation of the system, etc.):
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