Many thanks to Alejandro Martin Jimeno. I can confirm that his solution (#61) works under Ubuntu Lucid in this machine:
Acer Aspire 5737z
uname -a Linux puffin 2.6.32-22-generic #33-Ubuntu SMP Wed Apr 28 13:27:30 UTC 2010 i686 GNU/Linux
Many thanks to Alejandro Martin Jimeno. I can confirm that his solution (#61) works under Ubuntu Lucid in this machine:
Acer Aspire 5737z
uname -a
Linux puffin 2.6.32-22-generic #33-Ubuntu SMP Wed Apr 28 13:27:30 UTC 2010 i686 GNU/Linux