This appears to only effect thinkpads using the Intel x3100 graphics. I have a Thinkpad 61p with Nvidia Quadro and the brightness control works (updating today's packages), using the proprietary nvidia driver. But when I try my other Thinkpad T61 with Intel x3100 it does not work.
Also using thinkpad acpi option is a bad work around for the real issue. This worked and then broke with an ubuntu kernel update (see my other comments). -- [REGRESSION] Impossible to change LCD brightness on Thinkpad R61/T61/X61 https://bugs.launchpad.net/bugs/198476 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
