Problem lowering the screen brightness

Hello,
I’ve just installed neon on an Asus ROG Strix laptop and I’m having a problem lowering the screen brightness, which is stuck at full brightness!
Whether I set the brightness slider to 2% or 100% doesn’t change the power of the backlight!
Do you have a solution?
thanks

Operating system: KDE neon 6.0
KDE Plasma Version: 6.0.0
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Kernel version: 6.5.0-25-generic (64-bit)
Graphics platform: Wayland
Processors: 16 × AMD Ryzen 7 6800H with Radeon Graphics
Memory: 14.9 GB RAM
Graphics processor: AMD Radeon Graphics
Manufacturer: ASUSTeK COMPUTER INC.
Product name : ROG Strix G713RM_G713RM
System version: 1.0