On Tue, 29 Dec 2009, Albert Vilella wrote: > Hi again, > > In this occasion not providing a working module, but just a grep to > show 5 different laptop > models that use an almost identical ACPI call to report on the > discrete nvidia graphics switch: > > All DSDT.dsl files are available here: > https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/312756 > grep -e NVIF *.dsl > > Acer_Aspire_7530G_nv.dsl: Name (_UID, "NVIF") > Acer_Aspire_7530G_nv.dsl: Return > (\_SB.PCI0.IXVE.IGPU.NVIF (FUNC, SUBF, ARGS)) > Acer_Aspire_7530G_nv.dsl: Method (NVIF, 3, NotSerialized) > Dell_Studio_XPS_13_nv.dsl: Name (_UID, "NVIF") > Dell_Studio_XPS_13_nv.dsl: Return > (\_SB.PCI0.IXVE.IGPU.NVIF (FUNC, SUBF, ARGS)) > Dell_Studio_XPS_13_nv.dsl: Method (NVIF, 3, NotSerialized) > Elitegroup_GF8100VM_nv.dsl: Name (_UID, "NVIF") > Elitegroup_GF8100VM_nv.dsl: Return > (^^IXVE.IGPU.NVIF (FUNC, SUBF, ARGS)) > Elitegroup_GF8100VM_nv.dsl: Method (NVIF, 3, NotSerialized) > MSI_EX630-034US.dsl: Name (_UID, "NVIF") > MSI_EX630-034US.dsl: Return > (^^IXVE.IGPU.NVIF (FUNC, SUBF, ARGS)) > MSI_EX630-034US.dsl: Method (NVIF, 3, NotSerialized) > MSI_EX630_nv.dsl: Name (_UID, "NVIF") > MSI_EX630_nv.dsl: Return > (^^IXVE.IGPU.NVIF (FUNC, SUBF, ARGS)) > MSI_EX630_nv.dsl: Method (NVIF, 3, NotSerialized) > Toshiba_Qosmio_X305_nv.dsl: Name (_UID, "NVIF") > Toshiba_Qosmio_X305_nv.dsl: Return > (\_SB.PCI0.IXVE.IGPU.NVIF (FUNC, SUBF, ARGS)) > Toshiba_Qosmio_X305_nv.dsl: Method (NVIF, 3, NotSerialized) There are about 50 DSDTs in that ubuntu feature request. A sub-set of them include a WMI device that calls itself "NVIF": Device (WMI0) { Name (_HID, "*pnp0c14") Name (_UID, "NVIF") Name (_WDG, Buffer (0xC8) { Likely that name is the result of it appearing in some nvidia reference AML/WMI code someplace; for use with the associated Windows WMI driver. Not immediately clear what the capabilities of that WMI device are... I happen to have a Sony VGN-Z540 with a stamina/speed switch. It's BIOS does not supply a WMI device with this name. -Len Brown Intel Open Source Technology Center -- 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
