i would to ask that question: why freeze my ubuntu studio when system starting ? anyway ubuntu studio is great i love it only then freeze, and I dont know why ?
EDIT from comments (paraphrased):
I see only ubuntu logo rotate... and after 20 min still nothing (no boot?)
quiet splash
from the boot options and then tell us where it stops exactly. Follow these instructions how to do this. – Fabby Mar 10 '15 at 21:20