https://bugzilla.kernel.org/show_bug.cgi?id=218465 --- Comment #5 from Mathias Nyman (mathias.nyman@xxxxxxxxxxxxxxx) --- This DELL machine has ACPI entries for USB ports that are not usable. These ports are supported by xHCI host hardware but are not internally or externally connected anywhere. They have _UPC (USB port capability) ACPI objects stating they are not connectable, and _PLD (Physical Location of Device) that just returns 0 for their group token group position. So all unusable USB2 and USB3 ports have similar _PLD entries, which then confuses Linux when trying to pair together USB2 and USB3 ports. Linux could probably ignore printing any warning messages for ports that have _PLD entries but _UPC shows they are not connectable -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
