Also, here are related bugs (they are referring to bad power management information, but the cause seems to be the same) bug 147560 bug 139701
Ben, I'll leave it to you to decide if this should be marked duplicate of one of those (or which of those should be a master for this issue. Paul Sladen has commented on bug 147560 because he was given a problem laptop from System76).
Also, here are related bugs (they are referring to bad power management information, but the cause seems to be the same)
bug 147560
bug 139701
Ben, I'll leave it to you to decide if this should be marked duplicate of one of those (or which of those should be a master for this issue. Paul Sladen has commented on bug 147560 because he was given a problem laptop from System76).