Combat, thank for posting the Lucid logs, as it did help immensely in revealing the true root cause. In your current Saucy install, could you please add to your kernel boot parameters the following: irqpoll
One may do this via a terminal: sudo gedit /etc/default/grub and change: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash irqpoll" execute at a terminal: sudo update-grub restart your computer, and advise if anything changes. ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1210858 Title: [Sony VAIO SVT15117CXS] USB 2.0 ports not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1210858/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs