The FN brightness control keys on my Aspire F5-573 Laptop have stopped working.

Technic14

Hello, can somebody point me in the right direction to solve the following problem.

 

I have just purchased an Acer Aspire F5-573-52MU Laptop and a week after purchase (Sept 2016) my Fn Hotkey stopped working when I try to increase or decrease the brightness (Fn + Right or Left Arrow), but it still works when I adjust the Volume (Fn + Up or Down Arrow).

 

I have also performed a complete factory reset (As suggested by ACER Support), but to no avail?

 

The screen needless to say is very bright and with no control over the brightness leads to a faster discharge of the battery. Has anybody encountered a similar problem on this model, any suggestions to rectify this would be gratefully received?

Technic14

It would seem MS Win10 auto update "might possibly have updated the driver" creating a loss of the hotkey functionality. This would also explain why my factory reset/install failed to correct the problem?

 

Replaced the monitor driver manually in device manager by selecting the generic PnP Monitor version. PROBLEM SOLVED, Yah!  Although I feel this problem may well happen again on the next update (I hope not)!

 

Anyway this cured my problem...