Can you please check if you're on the latest firmware for the 5520? There was a recent issue on many laptops that was leading to instability specifically with USB. BIOS has been released for many of them already.
On Fri, Sep 15, 2017, 10:36 Piotr Kołaczkowski <pkola...@gmail.com> wrote: > Also, I've read this on another USB ticket in bugzilla: > All USB bugs should be sent to the linux-...@vger.kernel.org mailing > list, and not entered into bugzilla. Please bring this issue up there, > if it is still a problem in the latest kernel release. > > > So it looks like the mailing list is the only way. > Is it normal that I post something to the mailing list and get no answer > back? > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1701499 > > Title: > System often freezes or panics if I log in with Dell Dock WD15 > connected > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1701499/+subscriptions > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1701499 Title: System often freezes or panics if I log in with Dell Dock WD15 connected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1701499/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs