Po-HSU Lin, as per your https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1223137/+attachment/3812304/+files/BootDmesg.txt : [ 0.080478] perf_event_intel: PEBS disabled due to CPU errata, please upgrade microcode
In order to have a level debug baseline, as per http://www.dell.com/support/drivers/us/en/19/Product/latitude-3330-laptop an update is available for your BIOS (A03). Could you please update to this following https://help.ubuntu.com/community/BiosUpdate , test for this in Trusty via http://cdimage.ubuntu.com/daily-live/current/ , and then post the results of the following via a terminal: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date && xinput list Thank you for your understanding. ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1223137 Title: [Dell Latitude 3330] ALPS Touchpad was not detected. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1223137/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
