Screen brightness change by itself

I have a HP Elitebook turn 810 Windows 7. The brightness of the display continues to change by itself - it illuminates, then fades then brightens and fades. When the brightness changes I check the level of brightness, but it has not changed. I tried to turn Adaptive brightness and the, but it did not help. Thank you so much - it drives me crazy!

I doubt that it is a Windows 7 problem.  It is probably a hardware problem.  I suggest that you contact HP support.

Tags: Windows

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