kernel-packages team mailing list archive

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

Björn Ruberg, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1363492

** Package changed: ubuntu => linux (Ubuntu)

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

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

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https://bugs.launchpad.net/bugs/1363492

Title:
  Parallel port not working since kernel 3.11 on ThinkCentre Edge 72

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  When upgrading an Ubuntu 12.04 installation to the trusty hwe package
  I noticed that the parallel port printer was not working anymore. The
  reason is the parallel port which cannot be written to anymore. The
  printer cannot be detected and even an echo "hello" > /dev/lp0 with an
  occupied device message. The kernel log contains many errors "DMA
  write timed out" - they do only appear in the kernel versions with
  which the parallel port is not working. It is certainly related to the
  parport problem.

  Reverting to the raring kernel 3.8 makes the parallel port work again.
  The saucy 3.11 kernel is affected by the problem to. The original
  precise kernel was not working either.

  The ThinkCentre Edge 72 is an Intel IvyBridge based system.

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