Asus F2JE and defunct fn+brightness

While pressing Fn+brightness buttons, this occured in dmesg and nothing changes:

ACPI Error (psargs-0355): [\_SB_.PCI0.P0P2.VGA_.LCDD] Namespace lookup failure,
AE_NOT_FOUND
ACPI Error (psparse-0537): Method parse/execution failed
[\_SB_.PCI0.SBRG.EC0_._Q0F] (Node ffff81003ff07f70), AE_NOT_FOUND

I slighty changed DSDT, compiled it and used hex in "include custom DSDT" kernel option.