i had this problem as well on a Sony Vaio VGN-BX560B. This box has an intel hda sound card. I was able to get the laptop to turn off by forcing he removed of the sound module.
I did this by adding the line
rmmod snd-hda-intel
to /etc/default/halt
Hope this helps someone.
i had this problem as well on a Sony Vaio VGN-BX560B. This box has an intel hda sound card. I was able to get the laptop to turn off by forcing he removed of the sound module.
I did this by adding the line
rmmod snd-hda-intel
to /etc/default/halt
Hope this helps someone.