Hello! I'm seeing a lot of the following on this laptop: ACPI Error: Method execution failed [\\_SB_.BAT1._HID] (Node 0xfffffe0002a13600), AE_AML_NO_OPERAND (20110527/uteval-113) ACPI Error: No object attached to node 0xfffffe0002a13600 (20110527/exresnte-139) Running 9.1-STABLE/amd64 as of yesterday. Any idea how to improve the situation? Thanks!