I have the same bug, Ubuntu 12.04 running MacBook Pro Retina, installed NVidia drivers (specifically CUDA 5 driver). This is my experience:
first a general observations: I have another bug which may be related to this one: ctrl alt f1 only gives me black screen (but ctrl alt f7 gets me back)
1. booting in 'text acpi=force' mode (instead of 'quiet splash'):
shutdown works correctly (-h -r -P all works)
2. booting in 'text' mode without acpi=force
shutdown doesn't power off the computer
2. booting 'quiet splash acpi=force'
shutdown doesn't power off the computer
I have the same bug, Ubuntu 12.04 running MacBook Pro Retina, installed NVidia drivers (specifically CUDA 5 driver). This is my experience:
first a general observations: I have another bug which may be related to this one: ctrl alt f1 only gives me black screen (but ctrl alt f7 gets me back)
1. booting in 'text acpi=force' mode (instead of 'quiet splash'):
shutdown works correctly (-h -r -P all works)
2. booting in 'text' mode without acpi=force
shutdown doesn't power off the computer
2. booting 'quiet splash acpi=force'
shutdown doesn't power off the computer