AcpiPatcher.efi does not work with macOS

[meghan06]

FACP table patching does work for Linux/Windows, but does not work in macOS from my testing. I tried chainloading reEFInd and OC and putting AcpiPatcher.efi in OC/Drivers as well.

[meghan06]

It turns out that some OEMs leave S3 enabled in DSDT, but lock them behind a If condition. If the user's DSDT has signs of _S3, SS3, or S3, then it is possible to switch to S3 sleep. I was able to get S3 sleep using a SSDT and a ACPI rename.

SSDT:

DefinitionBlock ("", "SSDT", 2, "meghn6", "S3Fix", 0x00001000)
{
    External (_SB_.SS3, IntObj)
    
    Scope (\_SB)
    {
	Name (SS3, One)
     

	}
    
 
}
 

ACPI Rename (goes into ACPI -> Patch):

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<array>
	<dict>
		<key>Base</key>
		<string></string>
		<key>BaseSkip</key>
		<integer>0</integer>
		<key>Comment</key>
		<string>_S0 to XS0 rename; Fixes sleep</string>
		<key>Count</key>
		<integer>0</integer>
		<key>Enabled</key>
		<true/>
		<key>Find</key>
		<data>WFMw</data>
		<key>Limit</key>
		<integer>0</integer>
		<key>Mask</key>
		<data></data>
		<key>OemTableId</key>
		<data>AAAAAA==</data>
		<key>Replace</key>
		<data>WFMw</data>
		<key>ReplaceMask</key>
		<data></data>
		<key>Skip</key>
		<integer>0</integer>
		<key>TableLength</key>
		<integer>0</integer>
		<key>TableSignature</key>
		<data>AAAAAA==</data>
	</dict>
</array>
</plist>

[meghan06]

This is for my Dell XPS 13 7390 2 in 1, YMMV on other devices.