[Guide] Patching DSDT/SSDT for LAPTOP backlight control

[tonino77]

Allego DSDT

 

[RehabMan]

...

I use this?

into method label _Q13 parent_label H_EC replace_content
begin
Store(HKNO, Local0)\n
If (LEqual(Local0,7))\n
{\n
// Brightness Down\n
    Notify(\_SB.PCI0.LPCB.PS2K, 0x0205)\n
    Notify(\_SB.PCI0.LPCB.PS2K, 0x0285)\n
}\n
If (LEqual(Local0,8))\n
{\n
// Brightness Up\n
    Notify(\_SB.PCI0.LPCB.PS2K, 0x0206)\n
    Notify(\_SB.PCI0.LPCB.PS2K, 0x0286)\n
}\n
If (LEqual(Local0,4))\n
{\n
// Mirror toggle\n
    Notify(\_SB.PCI0.LPCB.PS2K, 0x026e)\n
    Notify(\_SB.PCI0.LPCB.PS2K, 0x02ee)\n
}\n
end;

No. Your DSDT uses separate methods for brightness keys and your EC is not H_EC, but rather EC0.

Read post #1.

 

[tonino77]

So I have to use this code?

into method label _Q10 replace_content
begin
// Brightness Down\n
Notify(\_SB.PCI0.LPCB.PS2K, 0x0205)\n
Notify(\_SB.PCI0.LPCB.PS2K, 0x0285)\n
end;
into method label _Q11 replace_content
begin
// Brightness Up\n
Notify(\_SB.PCI0.LPCB.PS2K, 0x0206)\n
Notify(\_SB.PCI0.LPCB.PS2K, 0x0286)\n
end;

 

[RehabMan]

So I have to use this code?

into method label _Q10 replace_content
begin
// Brightness Down\n
Notify(\_SB.PCI0.LPCB.PS2K, 0x0205)\n
Notify(\_SB.PCI0.LPCB.PS2K, 0x0285)\n
end;
into method label _Q11 replace_content
begin
// Brightness Up\n
Notify(\_SB.PCI0.LPCB.PS2K, 0x0206)\n
Notify(\_SB.PCI0.LPCB.PS2K, 0x0286)\n
end;

In post #47, you said your methods were _Q1C and _Q1D. Why would you patch _Q10 and _Q11?

 

[tonino77]

excuse my ignorance on the subject but I recently approached the world of dsdt. I haven't figured out where to insert this change.

 

[RehabMan]

excuse my ignorance on the subject but I recently approached the world of dsdt. I haven't figured out where to insert this change.

What do you mean "insert this change"?

 

[tonino77]

Where to apply the patch for the operation of the function keys etc..

 

[tonino77]

in post # 51 I have attached my dsdt might give us a look you??

 

[RehabMan]

Where to apply the patch for the operation of the function keys etc..

You apply the patch to your DSDT using MaciASL. Make sure you modify the patch as required for your situation (eg. _Q1D/_Q1C method names).

DSDT/SSDT patching guide is here: http://www.tonymacx86.com/yosemite-laptop-support/152573-guide-patching-laptop-dsdt-ssdts.html

 

[tonino77]

OK already added your repo and I already applied many of your patch also exists to solve my problem of adjusting the brightness keys?