Ubuntu
linux package

  1. Bug #1098216
  2. Comment #43

Comment 43 for bug 1098216

Revision history for this message
Marius Hofert (marius-hofert) wrote : Re: Regression in brightness control on Lenovo Thinkpad X230 and X1 Carbon

Not sure if this is helpful, but (assuming you are talking about the screen brightness not the keyboard backlit feature) http://askubuntu.com/questions/262003/brightness-not-working-on-lenovo worked for me on a Lenovo Thinkpad X1 Carbon with Ubuntu 13.04.