Hi there,

I managed to install the new kernel (which was exciting!  I've never
done that before.  Only nonobvious bit was uninstalling virtualbox-dkms
first).  It booted ok, this was my new uname -a:

  Linux harry-samsung 4.4.0-040400rc2-generic #201511231054 SMP Mon Nov
23 10:56:43 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

 But no change to the keyboard backlight situation.

I did see one error while installing the new kernel, which looked
potentially pertinent:

W: Possible missing firmware /lib/firmware/i915/skl_guc_ver4.bin for
module i915

What else might I be able to try? I think I saw something on the
internets about EFI vs UEFI boots, or something like that?

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

** Tags added: kernel-bug-exists-upstream

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https://bugs.launchpad.net/bugs/1519282

Title:
  Keyboard backlight stopped working after upgrade to Wily

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