kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Eddie Dunckley, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:
apport-collect 1454108

** No longer affects: linux-lts-trusty (Ubuntu)

** Project changed: linux-kernel-headers => linux (Ubuntu)

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-lts-trusty in Ubuntu.
https://bugs.launchpad.net/bugs/1454108

Title:
  HP Probook 450 usb ehci breaks between 3.13.0-36 and 3.13.0-37

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Release: Ubuntu 14.04.2 LTS
  Package version: linux-image-3.13.0-37-generic
  What expect to happen: USB to work after boot-up
  Whap happened instead: dead USB, no dmesg messages when unplugging or plugging in USB devices.

  HP Probook 450 USB support got broken since 3.13.0-37. Ubuntu 14.04.2
  LTS

  Similar but not identical to problems as described in https://bugs.launchpad.net/bugs/1072918.
  All USB ports dead. dmesg shows ehci_hcd died. cleaning up.

  By passing extra kernel parameters using grub menu:
  ehci=noirq (or was that acpi=noirq) makes it work but that breaks onboard ethernet.
  also tried with tried iommu=soft (didn't work)

  Tried all kernel images from 3.13.0-37 to 3.13.0-52 .. all the same
  result: broken USB.

  had to back-step to 3.13.0-36 ...

  Just thought I'd mention, that might affect other HP Probook models as
  well.

  kernel modules affected: xhci_hcd, hid_generic, usbhid, ehci

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454108/+subscriptions