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).