My laptop screen is no longer getting brighter?

us
- in Lenovo
3

I wanted to use my Lenovo ideapad laptop earlier, which I had previously put in the dark (to sleep) in the brightness. Now I wanted to use my laptop and wanted to increase my brightness again with the F12 key, but it doesn't work. What only works is that when I shine my cell phone lamp on the laptop, I can see the laptop screen and I also tried to manually increase the brightness in the settings, but it is set to full power. What should I do now? Unfortunately I have to rely on my laptop for school: /

El

Look whether the screen adapts to the lighting conditions, so whether this setting is activated

Sc

Rebooted times?

Gu

Do not start over again? Caps lock activated? Or look in Windows Settings → Night Mode