How to fix brightness Lenovo G400S on Mac OS Sierra 10.12.6

[agumyp]

I managed to install Mac OS Sierra on my laptop. But the brightness doesn't work, anyone knows how to fix it?

 

[P1LGRIM]

Not a Desktop - Moved to Laptop Support.

 

[agumyp]

Oh sorry i don't know

 

[REd83840]

Oh sorry i don't know

You need to apply brightness patch in dsdt..
Guide how to patch dsdt.. https://www.tonymacx86.com/threads/guide-patching-laptop-dsdt-ssdts.152573/