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- 8710w - Display-Brightness doesnt work

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09-26-2016 07:35 PM
I have a similar problem which was posted to hp support an kept without answer, so i will just copy it again
Hello, I recently purchased a professional refurbished HP/Compaq Mobile Workstation 8710w. My problem is: I cannot control the brightness of the display. When I use the function keys for increasing or decreasing the brightness (fn+f10 or fn+f9) an on-screen display with a bar indicating level of brightness apears, but the real brightness of the display remains unchanged at a low to average level. I also can enable or disable the brightness sensor using the function keys fn+f11. Then the systems tells me with an on screen message it has enabled or disabled the sensor, and the sensor works fine, the brightness increase and decrease depending on the light strength subjected over the sensor.
I also tried through the battery icon, i get the brightness bar and move it to high and low, but still nothing happens.
Hopefully there will be a solution this time, i have win7 ultimate installed, and also had same problem with Vista!!
