This bug occurs in every kernel I've tried. That includes 3.13.0-24.46 from 14.4, as well as a few kernels from 13.10, and a whole bunch from 12.4. I currently use 3.15-rc7 due to a video bug that is fixed in that kernel:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300349
This bug occurs in every kernel I've tried. That includes 3.13.0-24.46 from 14.4, as well as a few kernels from 13.10, and a whole bunch from 12.4. I currently use 3.15-rc7 due to a video bug that is fixed in that kernel:
https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1300349