As feedback from upstream kernel guys, it is caused by x.org driver, instead of kernel.
See description in the below link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/913164/comments/40 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/998546 Title: Touch-screen did work on 11.04 but no longer works on 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/998546/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
