kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.19 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.19-vivid/

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

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https://bugs.launchpad.net/bugs/1422680

Title:
  v4l2 regression: T420s built in camera stopped working

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  The  Chicony Electronics Camera (as built into for example Lenovo
  T420s) stopped working somewhere between kernel 3.2 and 3.13.

  I use both kernels in Ubuntu 12.04, and the camera works with the
  older one, so I filed the bug here as I don't know when it stopped
  working.

  The camera is still recognized by v4l2, properties can be accessed by
  v4l2-ctl for example, and seemed correctly reported back (pixelformats
  for exmaple match my expectation).  But the frame capturing intself
  will always fail with 'device busy'.

  Usb IDs:
  04f2:b221 Chicony Electronics Co., Ltd integrated camera

  
  What further information would be useful?

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