I installed Ubuntu 13.10 running 3.11 kernel and I noticed the stepping is still there. The following fixed the stepping:
sudo sh -c 'echo -n 0 > /sys/module/video/parameters/brightness_switch_enabled' Seems that the driver and the GNOME settings daemon, or some other user space tool, is issueing the same command so it is doubling up. Should I open another bug or continue to use this bug? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1098216 Title: Regression in brightness control on Lenovo Thinkpad X230 (+tablet) and X1 Carbon To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1098216/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs