I wouldn't recommend to waste time investigating the lag mentioned in the past few comments.
Due to the way that Thunderbolt works while enumerating in BIOS assist mode (also known as legacy mode) I would expect a small lag like that. In native mode the enumeration is handled by the OS ACPI hotplug subsystem. Enumerating the Thunderbolt tree is assisted by a BIOS SMI in this instance. The CPU goes into SMM during this time. Native isn't supported yet by 4.15 and also the thunderbolt controller needs special firmware for it to work in this mode that's not currently available for the XPS 9370. On Wed, Jan 31, 2018, 04:01 Joseph Borg <[email protected]> wrote: > Hi Kai-Heng and Mario, I'll try the update when I have a moment. > > Yes, I get a ~1 second freeze and I plug anything or take it out. > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1745747 > > Title: > No USB support for Dell XPS 13 9370 running Bionic 18.04 > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1745747/+subscriptions > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745747 Title: No USB support for Dell XPS 13 9370 running Bionic 18.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1745747/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
