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

[Ross Burton]

>From a Lenovo Thinkpad X60 that has broken brightness:

lshal|grep smbios.system
  smbios.system.uuid = '0A7CB481-4866-11CB-A0AF-B3B7A2FEB98C'  (string)
  smbios.system.serial = 'L3B9444'  (string)
  smbios.system.version = 'ThinkPad X60'  (string)
  smbios.system.product = '17068GG'  (string)
  smbios.system.manufacturer = 'LENOVO'  (string)

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