Is the package is xenial-proposed something you could help verifying? I do not have access to hardware that would exhibit this issue; it would help greatly in providing the fix to have someone with this hardware follow the steps in https://wiki.ubuntu.com/QATeam/PerformingSRUVerification (or comment #21 here) to validate that the fix works and doesn't adversely affect systems.
@Matt,
@Russell,
Is the package is xenial-proposed something you could help verifying? I do not have access to hardware that would exhibit this issue; it would help greatly in providing the fix to have someone with this hardware follow the steps in https:/ /wiki.ubuntu. com/QATeam/ PerformingSRUVe rification (or comment #21 here) to validate that the fix works and doesn't adversely affect systems.