This issue still exists in trusty, with or without fglrx installed. Tested with kernel 3.13.0-29.53 and fglrx 2:13.350.1-0ubuntu2.
This issue still exists in trusty, with or without fglrx installed. 1-0ubuntu2.
Tested with kernel 3.13.0-29.53 and fglrx 2:13.350.