kernel-packages team mailing list archive

[Eddie Dunckley <eddiedunckley@xxxxxxxxx>]

All the new kernel updates still suffer from same problem, I have to
hold back kernel to 3.13.0-36

think its related to

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1072918

and

https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1454108

and

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1133670


If it worked perfectly in 3.13.0-36,  what change was made in 37 that breaks it?

There is no linux firmware updater software on HP site, and I do not wish to 
install windows just to do a hp firmware flash if its some changes in linux kernel
that is causing the problem.



** Also affects: linux-kernel-headers
   Importance: Undecided
       Status: New

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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-kernel-headers:
  New
Status in linux-lts-trusty package in Ubuntu:
  New

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

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