I tested it with the latest Trusty Kernel 3.12.0-031200 and the bug still occurs.
Another thing I just noticed was, that when I try the workaround shutdown command "sudo halt -f -p" the notebook freezes immediately without taking me to the "shutdown screen".
But it seems that with this kernel, the fan doesn't blow hard while the notebook's stuck.
I tested it with the latest Trusty Kernel 3.12.0-031200 and the bug still occurs.
Another thing I just noticed was, that when I try the workaround shutdown command "sudo halt -f -p" the notebook freezes immediately without taking me to the "shutdown screen".
But it seems that with this kernel, the fan doesn't blow hard while the notebook's stuck.