Thanks for your answer Kai-Heng. I am not sure what ftrace is. I used these commands to get the logs:
mount -t debugfs none /sys/kernel/debug echo xhci-hcd >> /sys/kernel/debug/tracing/set_event cat /sys/kernel/debug/tracing/trace Can they be used to debug this? Or there is another procedure? I understand that my device is different but I believe it has the same or very similar bug. And I am seeking help. I don't know who to contact for this bug to be finally fixed. Any suggestions are welcome. Thanks. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1667750 Title: xhci_hcd: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 2 comp_code 13 To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1667750/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs