This issue is still existing.
Thinkpad X230
$ uname -a Linux ******* 3.13.0-46-generic #77-Ubuntu SMP Mon Mar 2 18:23:39 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
This issue is still existing.
Thinkpad X230
$ uname -a
Linux ******* 3.13.0-46-generic #77-Ubuntu SMP Mon Mar 2 18:23:39 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux