I had Ubuntu 12.04 on my Dell 1558 with the following Config:
128 GB SSD
it use to take less than 2 seconds to shutdown but since i update to 12.10, it takes about 5 second. I feel that there is something abnormal.
I checked /var/log/syslog but cannot locate anything. While shutting down i see [Fail] next to Terminating all other processes but it flashes so quickly that i can not read it all. Since HDD is off by then, it doesnt get logged either. Any help would be appreciated.