Hi again.
I use a laptop (Packard Bell EasyNote D5710), and I've just
found out that there are some problems with ACPI and Ubuntu:
http://www-zeuthen.desy.de/~alorca/linux2onlaptop.html
"After having upgraded the X11 fglrx drivers Ubuntu does not resume
properly from hibernating, so it may happen that is a graphical
problem since everything gets frozen at the very end, nearly when
done."
Any tip to fix it?
Thank you very much.