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[David Bourguignon <1267525@xxxxxxxxxxxxxxxxxx>]

Dear Christopher, thank you for suggesting this. I would gladly try to
run a live environment from the very same USB stick that contained the
Ubuntu version (12.04 LTS ) I previously installed.

However, I have a question: if I encounter the same issue (meaning a
complete crash of all USB port, preventing me from using both keyboard
and mouse) will the logs be saved on the USB stick itself? In this case,
I will then reboot the machine and send the logs by running the apport-
collect command at a terminal.

Thanks in advance for your help in confirming (or not) this!

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https://bugs.launchpad.net/bugs/1267525

Title:
  Full USB ports crash after installing Ubuntu 12.04.03 LTS

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I experienced a related issue to Bug #1250726 (I think) after
  installing Ubuntu 12.04.03 LTS (downloaded on January 6th, 2014) on a
  desktop PC.

  Everything went fine during install. After roughly 30 minutes of
  usage, I experienced a complete crash of all USB ports (I had both
  keyboard and mouse on USB 2.0 ports, and other USB 3.0 were not usable
  any more). After rebooting, I experienced the same problem again after
  roughly 20 minutes of usage. Very serious issue, indeed.

  This desktop PC was then moved to Windows 8.0 and everything went fine
  from now on. No crashes at all for days and weeks. Therefore, I
  concluded that this problem was lying 100% on Ubuntu side.

  Here is my configuration ( I can provide more info if necessary):
  - Motherboard: Asrock H67M
  - CPU : Intel Core i5 2400S 2.5GHz (x64)
  - RAM: Corsair DDR3 4GB
  - Keyboard and mouse: Logitech

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