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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1562778

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

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

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https://bugs.launchpad.net/bugs/1562778

Title:
  I2C touchscreen init failed on HP X360

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  [Impact]

  As title, after upgrading to latest Vivid kernel the touchscreen
  failed. After bisecting shows this revert cause the regression:

  commit 95df597989f6f297db63dd8669656d10f5f48eb1
  Author: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
  Date: Fri Dec 4 23:49:18 2015 +0200

      Revert "ACPI / LPSS: allow to use specific PM domain during
  ->probe()"

  [Fix]

  The reverted patch has had a revised version upstreamed:

  commit de16d55206c5ce82ad44590b01718fbe2323853c
  Author: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
  Date:   Fri Dec 4 23:49:19 2015 +0200

      ACPI / LPSS: allow to use specific PM domain during ->probe()

  For Vivid it's a simple clean pick (plus a one line change for header
  file), but in Xenial the touchscreen still works because the original
  patch is not reverted. I'll firstly revert the patch than apply the
  new fix.

  [Test]

  3.19.0-56 -> Failed
  3.19.0-56 + patches -> OK (Including suspend)
  4.4.0-15 -> OK
  4.4.0-15 + revert patch -> To Be Tested
  4.4.0-15 + patches -> To Be Tested

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