Hi all, I just post because my dmesg says so: ACPI: System BIOS is requesting _OSI(Linux) ACPI: Please test with "acpi_osi=!Linux" Please send dmidecode to linux-acpi@xxxxxxxxxxxxxxx Handle 0x003A, DMI type 0, 24 bytes BIOS Information Vendor: Apple Computer, Inc. Version: MP21.88Z.007F.B02.0703191612 Release Date: 03/19/07 Handle 0x003B, DMI type 1, 27 bytes System Information Manufacturer: Apple Computer, Inc. Product Name: MacPro2,1 Version: 1.0 ... If you need more let me know. I mostly looked thru the dmesg because the box shuts down sometimes, randomly. Maybe too hot? But I still investigate. However, the box (2 Quad-Core CPUs) even awakes from echo mem > /sys/power/state (without graphic though, maybe s2ram posting would fix that - but I do not really care about the graphic as it is indended to be used as server anyway). Yours, -- René Rebe - ExactCODE GmbH - Europe, Germany, Berlin http://exactcode.de | http://t2-project.org | http://rene.rebe.name - 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