Thanks for the acpidump If (\_OSI ("Linux")) { Store (0x01, LINX) Store (0x80, ^OSTB) Store (0x80, ^TPOS) } LINX is written, but never read --a NOP TPOS is compared to 0x40 (vista) in the SATA AML, which OSI(Linux) will break OSTB is compard to 0x40 (vista), which OSI(Linux) will break, apparently disabling video notifies. So I recommend that we continue to disable OSI(Linux) on this box, unless you find that SATA or the video driver work better without it. thanks, -Len Method (_Q10, 0, NotSerialized) { If (LEqual (\_SB.OSTB, 0x40)) { Notify (\_SB.PCI0.AGP.VGA.LCD, 0x86) } Else { If (LLess (\_SB.PCI0.LCDL, 0x07)) { Increment (\_SB.PCI0.LCDL) Store (\_SB.PCI0.LCDL, BKLG) } } } Method (_Q11, 0, NotSerialized) { If (LEqual (\_SB.OSTB, 0x40)) { Notify (\_SB.PCI0.AGP.VGA.LCD, 0x87) } Else { If (\_SB.PCI0.LCDL) { Decrement (\_SB.PCI0.LCDL) Store (\_SB.PCI0.LCDL, BKLG) } } } System Information Manufacturer: FUJITSU SIEMENS Product Name: AMILO Pa 2510 Version: 20 Serial Number: 12345678 UUID: 006581C7-5E2A-DB11-B7FE-D1AD14F053E9 Wake-up Type: Power Switch SKU Number: 12345678 Family: AMILO Handle 0x0002, DMI type 2, 8 bytes Base Board Information Manufacturer: FUJITSU SIEMENS Product Name: F37 - 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