8570w Only lack of backlight control

[hongchangwei]

#8570w Only lack of backlight control

8570w k2000m backlight control, has not been successful
8570w discrete graphics k2000m (no hd4000) stable operation, battery, VGA, USB, and audio, are normal, now the only drawback is the backlight control, has not been successful,
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I remember last year 8560w AMD FirePro M5950, this video card is fine, the only drawback is the Wi-Fi module, 8570w BIOS on Wi-Fi modules have no restrictions, poor backlight control!
Here is my DSDT.DSL/SSDT.DSL ACPI folders
[FONT=.PingFang SC]Google for a long time and found no success stories!Good hope night 8570w！

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Extraction of clover under F4

 

[RehabMan]

8570w k2000m backlight control, has not been successful
8570w discrete graphics k2000m (no hd4000) stable operation, battery, VGA, USB, and audio, are normal, now the only drawback is the backlight control, has not been successful,
[FONT=.PingFang SC]View attachment 185742View attachment 185743View attachment 185745View attachment 185746[/FONT]
I remember last year 8560w AMD FirePro M5950, this video card is fine, the only drawback is the Wi-Fi module, 8570w BIOS on Wi-Fi modules have no restrictions, poor backlight control!
Here is my DSDT.DSL/SSDT.DSL ACPI folders
[FONT=.PingFang SC]Google for a long time and found no success stories!Good hope night 8570w！[/FONT]

Attach ioreg as ZIP: http://www.tonymacx86.com/audio/58368-guide-how-make-copy-ioreg.html. Please, use the IORegistryExplorer v2.1 attached to the post! DO NOT reply with an ioreg from any other version of IORegistryExplorer.app.

Provide output (in Terminal):

kextstat|grep -y acpiplat
kextstat|grep -y appleintelcpu
kextstat|grep -y applelpc
kextstat|grep -y applehda

Attach EFI/Clover folder as ZIP (press F4 at main Clover screen before collecting). Please eliminate 'themes' directory. Provide only EFI/Clover, not the entire EFI folder.

Attach output of (in Terminal):

sudo touch /System/Library/Extensions && sudo kextcache -u /

Compress all files as ZIP. Do not use external links. Attach all files using site attachments only.

 

[hongchangwei]

Attach ioreg as ZIP: http://www.tonymacx86.com/audio/58368-guide-how-make-copy-ioreg.html. Please, use the IORegistryExplorer v2.1 attached to the post! DO NOT reply with an ioreg from any other version of IORegistryExplorer.app.

Provide output (in Terminal):

kextstat|grep -y acpiplat
kextstat|grep -y appleintelcpu
kextstat|grep -y applelpc
kextstat|grep -y applehda

Attach EFI/Clover folder as ZIP (press F4 at main Clover screen before collecting). Please eliminate 'themes' directory. Provide only EFI/Clover, not the entire EFI folder.

Attach output of (in Terminal):

sudo touch /System/Library/Extensions && sudo kextcache -u /

Compress all files as ZIP. Do not use external links. Attach all files using site attachments only.

Extraction of clover under F4

 

[hongchangwei]

Install the driver file, load the DSDT future changes

 

[RehabMan]

Extraction of clover under F4

You need to start by adding a PNLF device (eg. "Brightness Fix" patch).

No expectation of brightness controls without PNLF in ACPI.

 

[hongchangwei]

You need to start by adding a PNLF device (eg. "Brightness Fix" patch).

No expectation of brightness controls without PNLF in ACPI.

A patched, but should not, patch just a new piece of code at the bottom, DSDT missing lots of other code
Scope (_SB)
{
Device (PNLF)
{
Name (_ADR, Zero)
Name (_HID, EisaId ("APP0002"))
Name (_CID, "backlight")
Name (_UID, 10)
Name (_STA, 0x0B)
}
}
}

 

[RehabMan]

A patched, but should not, patch just a new piece of code at the bottom, DSDT missing lots of other code
Scope (_SB)
{
Device (PNLF)
{
Name (_ADR, Zero)
Name (_HID, EisaId ("APP0002"))
Name (_CID, "backlight")
Name (_UID, 10)
Name (_STA, 0x0B)
}
}
}
View attachment 185835
View attachment 185836

That is the normal PNLF patch to enable native backlight control. It is the first step.

 

[tonybinjch]

Hi,
How did you get the audio working?