GUIDE How to Remap Brightness Hotkeys on Laptops

[EliteMacx86]

i did everything exclude ACPIDebug.kext put in EFI, is it wrong? but on Monterey cant put in SLE

You can use it in OpenCore or L/E.

Dell often has BRT6 method. The patch would be

into method label BRT6 replace_content
begin
    If (LEqual (Arg0, One))\n
    {\n
// Brightness Up\n
        Notify (^^LPCB.PS2K, 0x0406)\n
    }\n
    If (And (Arg0, 0x02))\n
    {\n
// Brightness Down\n
        Notify (^^LPCB.PS2K, 0x0405)\n
    }\n
end;

 

[oldman20]

You can use it in OpenCore or L/E.

Dell often has BRT6 method. The patch would be

into method label BRT6 replace_content
begin
    If (LEqual (Arg0, One))\n
    {\n
// Brightness Up\n
        Notify (^^LPCB.PS2K, 0x0406)\n
    }\n
    If (And (Arg0, 0x02))\n
    {\n
// Brightness Down\n
        Notify (^^LPCB.PS2K, 0x0405)\n
    }\n
end;

Thank, i edit directly DSDT with these code, boot with Clover it work. But default no OSD, and Fn+ B/ S still controll brighter and has OSD

 

[EliteMacx86]

Thank, i edit directly DSDT with these code, boot with Clover it work. But default no OSD, and Fn+ B/ S still controll brighter and has OSD

Brightness must be enabled for OSD.

 

[oldman20]

Brightness must be enabled for OSD.

Sr, can you explain more?

 

[EliteMacx86]

Sr, can you explain more?

For OSD to display, brightness must be enabled prior to map the hotkeys.

 

[oldman20]

The OS Check Fix patch is necessary to call the EC query methods.

Actually i dont know my original Windows version ship to my device: DELL Inspiron 3558 I5 -5200u
and i tried BRT6 method but Onscreen Display not working for brighter ( Volume OSD is fine - native)
Can u teach me to solve it? thank

 

[oldman20]

For OSD to display, brightness must be enabled prior to map the hotkeys.

your mean brighter slide?

 

[EliteMacx86]

Actually i dont know my original Windows version ship to my device: DELL Inspiron 3558 I5 -5200u
and i tried BRT6 method but Onscreen Display not working for brighter ( Volume OSD is fine - native)
Can u teach me to solve it? thank

No PR files attached.

your mean brighter slide?

Yes, what's your screen resolution?

 

[oldman20]

No PR files attached.

Yes, what's your screen resolution?

1366x768resolution

 

[oldman20]

No PR files attached.

How please?