These ACPI warnings are harmless most of time, but that also depends on what ACPI BIOS does on your systems. ===================================== [ 0.659825] wmi_bus wmi_bus-PNP0C14:00: WQBC data block query control method not found
WQBC is required according to WMI spec and implementation on this system but this is missing. This can cause some OEM features from working; however, many OEM WMI features (like hotkeys) aren't implemented on Linux in the first place. ===================================== [ 0.659921] ACPI Warning: SystemIO range 0x0000000000001828-0x000000000000182F conflicts with OpRegion 0x0000000000001800-0x000000000000183F (\_SB.PCI0.EHC2.E1PM) (20190816/utaddress-204) [ 0.661768] ACPI Warning: SystemIO range 0x0000000000001828-0x000000000000182F conflicts with OpRegion 0x0000000000001800-0x000000000000183F (\_SB.PCI0.EHC1.E1PM) (20190816/utaddress-204) [ 0.663121] ACPI Warning: SystemIO range 0x0000000000001828-0x000000000000182F conflicts with OpRegion 0x0000000000001800-0x000000000000187F (\PMIO) (20190816/utaddress-204) [ 0.664516] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver These complains that ACPI BIOS wants to access hardware registers, and OS never likes BIOS to access without going through device drivers. Without BIOS's ACPI code (sudo acpidump > acpi.log), it is not possible to do further analysis; however, it may be the same or similar to https://wiki.freebsd.org/Laptops/Dell_Latitude_E7240_i5-4310U. If this is the case, it is for USB2 power management. Unless you have USB 2 problems you don't need to worry about them either. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890467 Title: wmi_bus wmi_bus-PNP0C14:00: WQBC data block query control method not found To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890467/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
