https://bugzilla.kernel.org/show_bug.cgi?id=216728 --- Comment #19 from Mika Westerberg (mika.westerberg@xxxxxxxxxxxxxxx) --- It is likely that this is not an ACPI issue because rest of the Titan Ridge (TBT etc.) come up just fine and the power management is done for the root port so you would expect it to affect the whole add-in-card. Unfortunately I don't have any ideas how to debug this further either. I can check if we have this machine in our TBT team and if yes to try to reproduce. What is the exact model? -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.