chongcming, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal: apport-collect 1365534
** Package changed: ubuntu => linux (Ubuntu) ** Changed in: linux (Ubuntu) Importance: Undecided => Low ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1365534 Title: HP Pavilion (model 15-n240TX) touchpad not detected after some upgrade Status in “linux” package in Ubuntu: Incomplete Bug description: Laptop model directly from the sticker of the computer: HP Pavilion 15 Notebook PC (15-n240TX) with Ubuntu 12.04 OEM install Manufacturer of the Touchpad: HP When the symptom first appeared: After upgrade software/package upgrade as suggested by update manager To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1365534/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp