I wonder if you are hitting this: https://wiki.ubuntu.com/X/Bugs/Lucidi8xxFreezes
-- Lucid freeze after a few minutes (or seconds!). Cold boot required everytime. https://bugs.launchpad.net/bugs/572221 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
