About the remaining test, they gave no effect, not a change at all.
* ACPI boot parameter "acpi_apic_instance=2" (as pointed in boot messages)
* ACPI boot parameter "acpi_osi=Linux" (as pointed in boot messages)
I appended those parameters, each a time, at a /boot/grub/menu.lst special entry for ACPI tests (exactly the same as the latest kernel, but with the extra parameters).
By the way, while shuting down the laptop, the LCD dims too.
About the remaining test, they gave no effect, not a change at all.
* ACPI boot parameter "acpi_apic_ instance= 2" (as pointed in boot messages)
* ACPI boot parameter "acpi_osi=Linux" (as pointed in boot messages)
I appended those parameters, each a time, at a /boot/grub/menu.lst special entry for ACPI tests (exactly the same as the latest kernel, but with the extra parameters).
By the way, while shuting down the laptop, the LCD dims too.