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https://kzhiwei.wordpress.com/2011/06/21/the-mystery-of-the-disappearing-laptop-screen-brightness-slider-windows-7 The solution was to go to Device manager, uninstall the monitor (and check remove driver as well).


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Check the brightness level in the Control Panel, plus your laptop should have a funtion key to adjust the brightness .


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Control Panel -> Hardware and Sound -> Power Options -> Edit Plan Settings for plan specific, or just in power options on the bottom


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You must have keys marked as shown below on your keyboard. Using them in combination with Fn should help you adjust the brightness of your screen. Note : Keys on your keyboard maybe on different location depending your laptop brand and model However you can use a third party utility called f.lux which does more than that, not getting any money for ...


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This is a problem with the current graphics settings. Try this, Right click on Desktop → Select graphics properties → click on Power → Under left hand top side select On Battery → Under Graphics power plans Select Balanced Mode or Maximum Performance and Disable Display power Saving Technology. thanks...


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SOLVED - Go to power options, high performance, change plan settings, advanced, display, change enable adaptive brightness to off


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"Many modern laptops include a built-in dedicated light sensor. If yours does, and if you're running Windows 7 Professional or higher, you can enable a Windows feature called "Adaptive Brightness" which will do what you want. Otherwise, click here and download "SoftonEyes"."


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I had a similar problem with an X61s, and it turned out it is a BIOS setting. In Config-Display set display brightness on battery to "high" or something similar.


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If you are using an Apple external Display you can use Control-F1 and Control-F2


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I have a similar model NP680Z5E-X03US. Brightness control is completely unavailable using any version of either the Intel or Radeon display drivers. Neither keyboard control, system settings, display control, nor any other kind of brightness control will work. One solution is to go into Computer Management → Display and install the "Microsoft Basic Display ...



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