https://bugzilla.kernel.org/show_bug.cgi?id=31302
Aaron Lu <aaron...@intel.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO --- Comment #11 from Aaron Lu <aaron...@intel.com> 2013-06-21 05:46:29 --- (In reply to comment #10) > Created an attachment (id=89451) --> (https://bugzilla.kernel.org/attachment.cgi?id=89451) [details] > acpidump Your ACPI table provides a fake FAN control device, it doesn't do anything real to turn on/off the FAN with the specified interface: PowerResource (FN01, 0x00, 0x0000) { Method (_STA, 0, Serialized) // _STA: Status { Return (VFN1) } Method (_ON, 0, Serialized) // _ON_: Power On { Store (One, VFN1) } Method (_OFF, 0, Serialized) // _OFF: Power Off { Store (Zero, VFN1) } } And VFN1 is just a variable in memory space used to track the power resource's status: Field (GNVS, AnyAcc, Lock, Preserve) { OSYS, 16, ... ... Offset (0xEB), DSEN, 8, ECON, 8, GPIC, 8, CTYP, 8, L01C, 8, VFN0, 8, VFN1, 8, VDRV, 8 } No wonder Linux can't turn on the FAN. A firmware bug I would say. Any BIOS update available from your vendor site? -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla