The Brightness function key does not work on Lenovo W530 and Toshiba Z40/R30/R940 laptops in RHEL 6

Solution In Progress - Updated -

Issue

  • The Brightness function key does not work on Lenovo W530 and Toshiba Z40/R30/R940 laptops

Environment

  • Red Hat Enterprise Linux (RHEL) 6.6
  • Lenovo Laptop model W530
  • Toshiba Laptop models R30, R940, Z40

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