Problem is now fixed for me as well on my T450s:
gothputer :: ~ % uname -a Linux gothputer 3.16.0-37-generic #51~14.04.1-Ubuntu SMP Wed May 6 15:23:14 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Problem is now fixed for me as well on my T450s:
gothputer :: ~ % uname -a
Linux gothputer 3.16.0-37-generic #51~14.04.1-Ubuntu SMP Wed May 6 15:23:14 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux