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Created attachment 558045 [details] dmesg Description of problem: Power source recognized badly. If i disconnect the direct power supply, the battery status does not change. Version-Release number of selected component (if applicable): acpid-2.0.14-1.fc16.x86_64 acpid-sysvinit-2.0.14-1.fc16.x86_64 acpitool-0.5.1-2.fc15.x86_64 wmacpi-2.2-0.7.rc1.fc15.x86_64 acpi-1.5-2.fc15.x86_64 kernel-3.2.2-1.fc16.x86_64 How reproducible: Disconnecting the direct electric current. Additional info (from dmesg): ... [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored ... ACPI: Thermal Zone [THRM] (26 C) [ 0.689651] ERST: Table is not found! [ 0.689653] GHES: HEST is not enabled! [ 0.689679] ACPI: Battery Slot [BAT1] (battery absent) ...