Bug#730435: linux-image-amd64: Lenovo T430s above 3.2 kernel display backlight keyboard controls not working

Package: linux-image-amd64
Version: 3.11+54
Severity: normal

Dear Maintainer,
*** Please consider answering these questions, where appropriate ***

   * What led up to the situation?
      When I upgraded to testing, with kernel at 3.10.3, I found that the display backlight keyboard shortcuts do not work, (they do on things like Fedora and Kubuntu with newer kernels), so it may be a configuration option mising.
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
      Using 3.2 kernel from Wheezy, keyboard shortcuts work.
   * What was the outcome of this action?
      See previous
   * What outcome did you expect instead?
      Keyboard buttons need to work.

-- System Information:
Debian Release: jessie/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.11-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-amd64 depends on:
ii linux-image-3.11-2-amd64 3.11.8-1

linux-image-amd64 recommends no packages.

linux-image-amd64 suggests no packages.

-- no debconf information