Same problem exists on thinkpad t431s. $ uname -a Linux urquell 3.8.0-25-generic #37-Ubuntu SMP Thu Jun 6 20:47:07 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Attached result of acpidump. Note that when doing the dump this printed on STDERR: Wrong checksum for FADT! ** Attachment added: "t431s acpidump" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1183856/+attachment/3734642/+files/t431s-acpi-tables.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1183856 Title: Brightness control on Lenovo ThinkPad T430 does not work. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1183856/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
