Lenovo_Ideapad120S-11IAP, insufficient screen brightness

[Andreas Aßmann]

Lenovo_Ideapad120S-11IAP, insufficient screen brightness

I am running Fedora28LXDE on a Lenovo Ideapad 120S-11IAP with its Intel 
HD-500 Graphics. Every is fine, but only the screen brightness is 
insufficient, too weak. Does anyone have an idea (driver or something 
like that)?

Thanks and greetings