Unfortunately there is no way to 'roll back' a release, you will need to reinstall the original ubuntu fresh.
There are multiple ways to get advice and help on the issues you have, for example ubuntuforums.org and askubuntu.com. Have fun. :) ** Changed in: ubuntu Status: New => Invalid ** Converted to question: https://answers.launchpad.net/ubuntu/+question/177679 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/884188 Title: NEW ubuntu user. Video card type changed by sys upgrade?. Unable to roll back. to previous ubuntu version? HELP PLS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/884188/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs