Hi all, running Linus' latest (2b12a4c) git kernel, acer-wmi triggers the following ACPI Error on my Acer TravelMate 6492: acer-wmi: Acer Laptop ACPI-WMI Extras ACPI Error (nseval-0159): Insufficient arguments - method [WQAA] needs 1, found 0 [20080609] acer-wmi: Unable to detect available WMID devices Reverting commit f3454ae8104efb2dbf0d08ec42c6f5d0fe9225bc (ACPICA: Add argument count checking to control method invocation via acpi_evaluate_object) makes acer_wmi work as before. Doing a little debugging the call trace starting at acer_wmi_init() is: WMID_set_capabilities() (called from drivers/misc/acer-wmi.c:1192) wmi_query_block(WMID_GUID2, 1, &out) (called from drivers/misc/acer-wmi.c:747) acpi_evaluate_object(handle, method, NULL, out) (called from drivers/acpi/wmi.c:350) acpi_ns_evaluate(info) (called from drivers/acpi/namespace/nsxfeval.c:258) Is it a bug in acer-wmi or in Acer's ACPI implementation? I can provide more information as necessary. Sven -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html