Hello, I've been researching for days about Fn+F11 and Fn+F12 to control screen brightness on Big Sur, and I noticed that this thread is the most up to date I could find, with laptops with similar configurations of mine.
I have a Dell 5378 laptop on Big Sur, i7 7500U, UHD 620, OpenCore 0.7.0, struggling for days to solve this.
It works with Fn+S and Fn+B keys, but not Fn+F11 and Fn+F12.
I've tried SSDT-BRT6 and patch, the SSDT-OCWork-dell, Brightnesskeys kext... nothing works.
I attached my current EFI folder and my system DSDT table from ACPI (MaciASL 1.6.1)
Could you give some directions on how to solve this, please?
dsdt.aml.zip EFI.zip