Saw these ACPI Warnings on Lenovo G580 ACPI Warning: SystemIO range 0x00003040-0x0000305f conflicts with OpRegion 0x00003040-0x0000304f (\_SB_.PCI0.SBUS.SMBI) (20140424/utaddress-258) ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver mei_me 0000:00:16.0: irq 42 for MSI/MSI-X ACPI Warning: SystemIO range 0x00000428-0x0000042f conflicts with OpRegion 0x00000400-0x0000047f (\PMIO) (20140424/utaddress-258) ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver ACPI Warning: SystemIO range 0x00000540-0x0000054f conflicts with OpRegion 0x00000500-0x00000563 (\GPIO) (20140424/utaddress-258) ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver ACPI Warning: SystemIO range 0x00000530-0x0000053f conflicts with OpRegion 0x00000500-0x00000563 (\GPIO) (20140424/utaddress-258) ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver ACPI Warning: SystemIO range 0x00000500-0x0000052f conflicts with OpRegion 0x00000500-0x00000563 (\GPIO) (20140424/utaddress-258) ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
Well, first of all, I don't think this is an regression as the warning messages have been there for a long time. Second, the warning message itself is not an problem to me, as this conflict may or may not results in some issues, and it is used as an indicator in case there is something wrong when running Linux. So, is there a real problem when using this machine, except those warning messages?
That's the problem: how do I know if there is a real problem with my machine other than these warning messages?!
I mean a real user-visible problem. And from your pose, I think the answer is no. Bug closed, but please feel free to re-open it if you're aware of some issues when using Linux.