Unable to change the brightness of my laptop Acer Aspire E 15 (E5-573G-3100)

fahmad
fahmad Member Posts: 17 Troubleshooter
edited March 2023 in 2017 Archives

I am unable to adjust the brightness of my laptop [Acer Aspire E 15 (E5-573G-3100)] since it was lastly opened and checked for errors by Acer Customer Service Personnel 3 days ago. Since that day, whenever the laptop is started, a DOS screen comes up and shows Realtek PCE family controller....something like this, and then it shows "MEDIA CABLE NOT FOUND, CHECK CABLE", and then the DOS screen disappears and the laptop boots properly to desktop.

 

I have tried updating the display driver from the device manager by going through one of the dicussions in Acer Community, but it doesn't work. Fn+Left/Right key combination is pressed, the brightness adjust switch shows up on screen, but it does't go either high or low. When i try it with mouse it goes up or down but the brightness of the screen doesn't change.

 

Give me a solution.

Answers