Random update: the issue seems to have disappear in a recent kernel, somewhere between 4.4.0.89 and 4.4.0.93. Just an FYI for anyone who is still paying attention.
Of course, it could be a random unrelated software change elsewhere, but there have been no hardware changes to the machine. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1676945 Title: xc5000 driver/firmware intermittent failure To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1676945/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs