[Asus G73sw] How to enable keyboard backlight

[onemanosx]

[ref]FCU4ever[/ref], I am not on my machine right now to help you with your DSDT right now, but if you are using emilydinesh fn kext, try removing it and reboot.

[FCU4ever]

[ref]onemanosx[/ref],

Without the kext no FN button work, except the Brightness bar. This goes up and down but without changing the brightness.

DSDT.aml.zip

[FCU4ever]

When I use the bootflag nv_disable the brightness keys work...... but without the bootflag not

[onemanosx]

[ref]FCU4ever[/ref],

Based on this info

 

2019-03-30 09:30:42.011132+0100 0x493 Default 0x0 0 kernel: (ACPIDebug) ACPIDebug: "EC _Q0E enter"
2019-03-30 09:30:42.011255+0100 0x493 Default 0x0 0 kernel: (ACPIDebug) ACPIDebug: "EC _Q0E exit"
2019-03-30 09:30:43.180490+0100 0x83 Default 0x0 0 kernel: (ACPIDebug) ACPIDebug: "EC _Q0F enter"
2019-03-30 09:30:43.180601+0100 0x83 Default 0x0 0 kernel: (ACPIDebug) ACPIDebug: "EC _Q0F exit"

 

I've patched your DSDT as per

 

      Method (_Q0E, 0, NotSerialized)  
       {
           If (ATKP)
           {
               \_SB.ATKD.IANE (0x20)
           }
       }
       Method (_Q0F, 0, NotSerialized) 
       {
           If (ATKP)
           {
               \_SB.ATKD.IANE (0x10)
           }
       }

 

Check if works

 

DSDT.aml.zip

[FCU4ever]

[ref]onemanosx[/ref],

Thanks for patching. Unfortunately the brightness isn't going up or down (the brightness bar is well going up or down)

[onemanosx]

[ref]FCU4ever[/ref], no idea why it is not working then

[FCU4ever]

[ref]onemanosx[/ref],

Thanks for help. Hopefully someone else have a solution!

[onemanosx]

[ref]FCU4ever[/ref], try again

 

DSDT.aml.zip

[FCU4ever]

[ref]onemanosx[/ref],

Also doesn't work I think the solution can be found in this thread: https://osxlatitude.com/forums/topic/1968-fn-hotkey-and-als-sensor-driver-for-asus-notebooks/?tab=comments&_fromLogin=1 but that thread is dead

[FCU4ever]

[ref]onemanosx[/ref],

Is it possible that the "Brightness fix" from Rehabman repro cause the problem?

[onemanosx]

[ref]FCU4ever[/ref], unlikely.

[FCU4ever]

[ref]onemanosx[/ref],

Okay. The reason I am asking is because that after adding the brightness patch from Rehabman to my DSDT the brightness bar has indeed been added to systempreference but also the brightness of the screen is a lot lower than before the patch. Maybe that is the reason I cant control the brightness with te Fn keys after different patches?

[onemanosx]

[ref]FCU4ever[/ref], if you are using RH brightness kext and ssdt, you are able to adjust the intensity of brightness. But I have not looked into that.

[FCU4ever]

[ref]onemanosx[/ref],

I found this patch. This patch is used for an Asus laptop with Nvidia Graphics card to get the brightness slider working. My laptop is also an Asus and I have the Nvidia Geforce GTX460m inside.

 

begin
Scope (\_SB)\n
{\n
   Device (PNLF)\n
   {\n
           Name (_HID, EisaId ("APP0002"))\n
           Name (_CID, "backlight")\n
           Name (_UID, 0x0E)\n
           Name (_STA, 0x0B)\n
           Method (_BCL, 0, NotSerialized)\n
           {\n
               Return (^^PCI0.PEG0.GFX0.LCDD._BCL ())\n
           }\n

           Method (_BCM, 1, NotSerialized)\n
           {\n
               Store (^^PCI0.PEG0.GFX0.GCBL (Arg0), Local0)\n
               Subtract (0x0F, Local0, LBTN)\n
               ^^PCI0.SBRG.EC0.STBR ()
           }\n

           Method (_BQC, 0, NotSerialized)\n
           {\n
               Return (LBTN)\n
           }\n

           Method (_DOS, 1, NotSerialized)\n
           {\n
               ^^PCI0.PEG0.GFX0._DOS (Arg0)\n
           }\n
   }\n
}\n
end;

 

But with this patch I've got 3 compiling errors..... Maybe you can help me?

DSDT.aml.zip

[onemanosx]

[ref]FCU4ever[/ref], can you also attach your runme files?

[FCU4ever]

[ref]onemanosx[/ref],

Sure

Send me mbp-van-koen.home.zip

[onemanosx]

DSDT.aml.zip

[FCU4ever]

[ref]onemanosx[/ref],

With that DSDT the brightness slider appear in syspref. When I lower the slider nothing happend. Still can't control the brightness

[onemanosx]

[ref]FCU4ever[/ref], no idea since i never used asusFN kext. I had a working slider and Fn keys just by using voodoops2controller and dsdt patch for my old laptop with nvidia graphics http://Olarila.com/forum/viewtopic.php?f=28&t=8768

[FCU4ever]

[ref]onemanosx[/ref],

And with wich patch you’ve got the brightness slider?

[onemanosx]

[ref]FCU4ever[/ref], similar patch as in your dsdt

Add this patch to the latest DSDT that I had uploaded and remove AsusFN kext from your S/L/E or L/E or Clover/Kexts/Other. Rebuild permissions and reboot.

(might also need to rebuild permissions again and reboot 2nd time)

 

into method label _Q0E replace_content
begin
// Brightness Down\n
Notify(\_SB.PCI0.SBRG.PS2K, 0x0205)\n
Notify(\_SB.PCI0.SBRG.PS2K, 0x0285)\n
end;
into method label _Q0F replace_content
begin
// Brightness Up\n
Notify(\_SB.PCI0.SBRG.PS2K, 0x0206)\n
Notify(\_SB.PCI0.SBRG.PS2K, 0x0286)\n
end;

 

In some cases, slider wont adjust brightness. But working FNkeys will adjust the brightness accordingly.

If this doesnt work, then I dont know.

[FCU4ever]

[ref]onemanosx[/ref],

I've patched the DSDT you've send me. Copied the DSDT to Clover/ACPI/Patched. Removed AsusFN kext. Rebuild permissions, reboot -> Slider appear and the FN buttons let the slider go up and down but the brightness isn't going up or down. Rebuild permissions again and reboot. Still no luck. Also the other FN buttons don't work without Asus FNkeys kext.

[onemanosx]

[ref]FCU4ever[/ref], maybe you need to mod the AsusFN kext plist.

I cant help with that. Never used it. On a good note, the slider and brightness keys are working though it didnt change the brightness

[FCU4ever]

[ref]onemanosx[/ref],

That is true. Many thanks for your help and I will look further

[FCU4ever]

[ref]onemanosx[/ref],

I've got it working I only needed to generate an AppleBacklightInjector.kext with this guide https://www.tonycrapx86.com/threads/native-brightness-working-without-blinkscreen-using-patched-applebacklight-kext.121031/

After installing the generated kext I have full brightness control.

DSDT + Kext.zip