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No handler for Region


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Hi all,


I've extracted my DSDT, recompiled it (with no modification except 2 syntax errors).

I run Lion with acpi_layer="ACPI_ALL_COMPONENTS ACPI_ALL_DRIVERS" acpi_level="ACPI_LV_ALL_EXCEPTIONS" debug=0x12a


I can see ACPI errors :

ACPI error : No handler for Region [ECOR] (0xffffff800a19a800) [EmbeddedControl] (2011528/evregion-487)

ACPI error : Region EmbeddedControl(0x3) has no handler (20100528/exfldio-382)

ACPI error (psparse-0632): Method parse/execution failed [\_SB_.PCI0.LPC_.EC0_.BAT0._STA] (node 0xffffff800a47d400), AE_NOT_EXIST


There are 4 method that failed :






Few seconds later, it freezes. Of course, with no custom DSDT, it boots.

Also, I tried to extract various ways (Os X, Windows, Linux, Clover), I got every time the same.


Does anyone know what this "handler" for an ACPI region ?

Is that supposed to work to extract, recompile ? Or there is more to do to use a custom DSDT ?


I've attached my DSDT just extracted. My laptop is ACER Aspire 4810TZG (same as 4810T, I think).






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On 2/13/2014 at 9:12 PM, Jief_Machak said:

Sorry, my mistake.

The correct attachment here under.


Errors are not at compile time, they are displayed by Os X when it boots in verbose mode.


ECOR is the OperationRegion fo the Embedded Control device (named EC0 here).



Hi Jief,

i have a similar problem, have you solved?


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