[Bug 61184] Re: Screen brightness buttons don't work properly on Thinkpad Z61T

[Hubert Figuiere]

Thinkpad Z60t

  smbios.system.uuid = '0060A481-47D9-11CB-93CB-84973E2CA408'  (string)
  smbios.system.serial = 'LR05635'  (string)
  smbios.system.version = 'ThinkPad Z60t'  (string)
  smbios.system.product = '2511E5U'  (string)
  smbios.system.manufacturer = 'IBM'  (string)

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Screen brightness buttons don't work properly on Thinkpad Z61T
https://launchpad.net/bugs/61184