[solved] [HELP]: Please help me remap Brightness Keys

[aylamrin]

@RehabMan : I am using using a DELL Inspiron 5370, with UHD 620. I was able to get the brightness slider, but I am unable to map the Brightness keys F11 and F12. Could you please help me? I will include the problem reporting files in the next post, then.

 

[aylamrin]

I have got Brightness Controls working with SSDT-PNLF with the brightness slider.

I want to have Brightness Control working with F Keys.

I am using @RehabMan 's VoodooPS2controller kext that maps the brightness controls to F14 and F15 keys. But unfortunately, on my DELL these are Fn+S and Fn+B.

Is there a way to edit a DSL or something, such that I get the default DELL mapping:

Fn+F1 => Mute
Fn+F2 => Vol. Down
Fn+F3 => Vol. Up
Fn+F4 => Rewind Media
Fn+F5 => Play/Pause
Fn+F6 => FF Media
Fn+F7 => <BLANK>
Fn+F8 => <BLANK>
Fn+F9 => <BLANK>
Fn+F10 => Keyboard Backlight toggle
Fn+F11 => Brightness Down
Fn+F12 => Brightness Up

 

[Feartech]

I have got Brightness Controls working with SSDT-PNLF with the brightness slider.

I want to have Brightness Control working with F Keys.

I am using @RehabMan 's VoodooPS2controller kext that maps the brightness controls to F14 and F15 keys. But unfortunately, on my DELL these are Fn+S and Fn+B.

Is there a way to edit a DSL or something, such that I get the default DELL mapping:

Fn+F1 => Mute
Fn+F2 => Vol. Down
Fn+F3 => Vol. Up
Fn+F4 => Rewind Media
Fn+F5 => Play/Pause
Fn+F6 => FF Media
Fn+F7 => <BLANK>
Fn+F8 => <BLANK>
Fn+F9 => <BLANK>
Fn+F10 => Keyboard Backlight toggle
Fn+F11 => Brightness Down
Fn+F12 => Brightness Up

there is some info about that here:
https://www.tonymacx86.com/threads/guide-patching-dsdt-ssdt-for-laptop-backlight-control.152659/ in post 1

 

[aylamrin]

there is some info about that here:
https://www.tonymacx86.com/threads/guide-patching-dsdt-ssdt-for-laptop-backlight-control.152659/ in post 1

Thanks. Actually, I have read that post. As @RehabMan says, the brightness keys are F14 and F15. So when I open Karabiner EventViewer, and Press Fn+S/ Fn+B 0x69/F14 and 0x6A/F15 are getting generated.

What I want is some sort of customization, such that instead of pressing Fn+S and Fn+B, it should be Fn+F11 and Fn+F12.

 

[aylamrin]

Attached Problem Reporting files ...

 

[Feartech]

Attached Problem Reporting files ...

so basically you need to open up DSDT.dsl and run a patch to change the notify

looking around i saw this:

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;

from here:
https://www.tonymacx86.com/threads/guide-dell-inspiron-13-5378-2-in-1-macos-10-12-6.230009/

(slightly different model)

once you know the numbers generated by pressing your F11 and F12 you can add that patch in MacIASL and it should do the job

 

[aylamrin]

so basically you need to open up DSDT.dsl and run a patch to change the notify

looking around i saw this:

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;

from here:
https://www.tonymacx86.com/threads/guide-dell-inspiron-13-5378-2-in-1-macos-10-12-6.230009/

(slightly different model)

once you know the numbers generated by pressing your F11 and F12 you can add that patch in MacIASL and it should do the job

I tried to go to 2 methods down. After that, I am lost.


@RehabMan , please help

 

[aylamrin]

I may be wrong, but I think the call sequence is _Q66->NEVT->WMNF ... cannot figure out anymore.

@RehabMan , please help

 

[aylamrin]

Just found out that I can increase my brightness up with fn+b and decrease brightness down with fn+s. Is there a way to switch it back to original brightness control keys like it was before update?

Same situation with me. Could you resolve the issue @holypaulie ?

 

[RehabMan]

I may be wrong, but I think the call sequence is _Q66->NEVT->WMNF ... cannot figure out anymore.

@RehabMan , please help

BRT6 is the correct method needing patching.
Read the guide carefully.