Regression seems to have been introduced in 3.13. I've tested with a few kernels and narrowed it to:
3.13.0-1-generic: BAD
3.11.0-2-generic : OK
Regression seems to have been introduced in 3.13. I've tested with a few kernels and narrowed it to:
3.13.0-1-generic: BAD
3.11.0-2-generic : OK