WHY can't I up or down the brightness of my laptop's screen?

thediegyx

Estimable
Aug 12, 2015
15
0
4,560
My laptop is a lenovo z50-75.
When I try to up or down the brightness the screen stays with the same brightness.
I try to upgrade the drivers of my graphics but it says they're with the most recent driver.
I go to control panel and there, there is a "brigtness bar" and there I can up or down the brightness but in real world doesn´'t up or down the brightness.(IT happens the same with the keys of brightness of my keybord)

So, what can i do?
 

thediegyx

Estimable
Aug 12, 2015
15
0
4,560

No, It's in balances mode

 

Ezoz

Estimable
Apr 10, 2014
3
0
4,510


Great you found a solution! :)

Vendor specific driver?, normally Windows gets those drivers from Windows update on first install. If it where a quick launch button driver problem you still vould have been able to adjust from control panel - power options.

Good to know the problem and solution.
 

NaNaNa1212

Commendable
Apr 2, 2016
1
0
1,510


Wait, what was your solution? Because I have the exact same problem
 

thediegyx

Estimable
Aug 12, 2015
15
0
4,560

1080p