Every time the power goes out or I blow a fuse, my system crashes. That would be normal for a desktop, but I have a laptop with a fully-working battery. In fact, I can unplug my laptop without issue if I disconnect my USB hub before I turn it on, but if the hub is plugged-in and loses power, my computer crashes.

Is there any way I can somehow "de-prioritize" the hub, or otherwise somehow tell my system not to explode if the hub loses power?

  • Sound a little simmilar with this Ubuntu bug, where the user can't boot the system with usb-hub connected or system crashes. No problem if connecting after system boot - bugs.launchpad.net/ubuntu/+source/linux/+bug/1710453 - Are you using the same kernel version as the one reported on this bug?
    – user34720
    Feb 28, 2018 at 20:41
  • It looks like I am using a slightly older version: 4.8.0-53-generic. Does this mean I just need to wait until the kernel has the fix mentioned in that link, and then update my kernel? Feb 28, 2018 at 20:45
  • Nah, i was just guessing, since your problem seems to be a uniq one. Maybe it is related, maybe not. What about if you try another Live Linux distro like Ubuntu, plug-in your USB hub and remove your laptop from energy for testing?
    – user34720
    Feb 28, 2018 at 20:51
  • I will have to try that. Feb 28, 2018 at 20:56
  • 1
    That is why i've suggested you a Live CD: You will not need to mess with your installed system :) Try Ubuntu 17.10, that have a pretty recent kernel.
    – user34720
    Mar 1, 2018 at 18:12


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