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@Andrey1970AppleLife @vit9696 @PMheart
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/*
* USB compatibility table for disable phantoms EHC1, EHC2.
*
* Attention!
* Only for 7,8,9-series chipsets and 10.11 and newer!
*
* To disable EHC1 and EHC2 - set an option "XHCI Mode" to "Enabled" in yours BIOS.
* If the "XHCI Mode" option is not available in yours BIOS or works incorrectly, then use this ACPI table.
* Disabling through BIOS is preferable whenever possible.
*
* WARN: for some motherboards you need to use either "EH1D = One" or "EH2D = One" but not both!
* This is because for some motherboards, device (EHC1 or EHC2) is used by macOS. Check the IOReg.
*/
DefinitionBlock ("", "SSDT", 2, "ACDT", "EHCx_OFF", 0x00001000)
{
Scope (\)
{
OperationRegion (RCRG, SystemMemory, 0xFED1F418, One)
Field (RCRG, DWordAcc, Lock, Preserve)
{
, 13,
EH2D, 1,
, 1,
EH1D, 1
}
Method (_INI, 0, NotSerialized) // _INI: Initialize
{
// In most cases this patch does benefit all operating systems,
// yet on select pre-Windows 10 it may cause issues.
// Remove If (_OSI ("Darwin")) in case you have none.
If (_OSI ("Darwin")) {
EH1D = One // Disable EHC1
EH2D = One // Disable EHC2
}
}
}
}
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