Windows 10: My laptop brightness is not decreasing even after the slider is at 0 after updating it.

I have tried to restart it but it didn't work. My drivers are updated.My laptop model- Lenovo Ideapad 5

:)

 

Brightness keys/ slider not working in windows 11

Hi Team,

Recently i got windows 11 update, after few days of usage i am facing brightness issue, i could not decrease my brightness using Function keys, there is also no option available in Settings like brightness slider to increase/decrease the brightness.

 

Windows 10 brightness slider?

Increase brightness:

• Fn + Del

Decrease brightness:

• Fn + Backspace

 

Laptop brightness automatically decreases to zero but if I press refresh, backspace, enter, shift or spacebar keys it stops decreasing

I have turned off automatic display brightness and I don't think it is a display hardware issue as when I started the BIOS i didn't have any changes in brightness. I got an old Lenovo Ideapad Yoga 13 windows 8 i5-3337U and 4gb ram working after maybe a year of non-usage. The battery is fine it works after unplugging the charger also. Now that those details are out of the way here is the problem.

Now the problem is that as soon as I start the laptop the brightness just decreases in steps all the way to zero. If i try to increase the brightness by pressing the button it decreases again at the same rate so I have to hold the brightness up button for it to be maximum then if I press backspace, refresh, enter or spacebar keys it stops decreasing and everything is normal. After that if i press any of the number keys or brightness decrease key (f11) it again starts to decrease. Please suggest a solution I'm at the end of my wits here.