I did the BIOS Update too, doesn't change anything. After the BIOS Update, your command outputs:
JBET47WW (1.12 ) 03/10/2015 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1440329 Title: No Sound output with Lenovo T450s and ThinkPad Ultra Docking station To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1440329/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
