For the failure mode that a disk is not recognized if plugged in _after_ resume, please provide kernel logs with firewire-ohci IRQ logging enabled:
# echo 7 > /sys/module/firewire_ohci/parameters/debug (suspend) (resume) (attach FireWire disk) (collect the dmesg) To be sure, repeat this with additional logging of bus reset events: # modprobe -r firewire-ohci # modprobe firewire-ohci debug=15 (suspend) (resume) (attach FireWire disk) (collect the dmesg) Beware, either debug level may possibly cause huge logs. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/881688 Title: [Latitude XT3] Firewire nonfunctional after suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/881688/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
