I was able to fix this on my ubuntu 14.04 installation using the vivid kernel (3.19). I ran:
sudo apt-get install linux-generic-lts-vivid did a reboot and the touchpad seems to be working now. Other people seem to be able to solve this problem by using a newer kernel too: https://github.com/duncan-bayne/mint-setup/issues/41 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-input-synaptics in Ubuntu. https://bugs.launchpad.net/bugs/1431338 Title: Touchpad is not detected. Lenovo E550. Status in xserver-xorg-input-synaptics package in Ubuntu: Confirmed Bug description: No feature of the touchpad works ever since I installed ubuntu. It's detected as a generic mouse. Touchpad tab is missing in system settings. The outputs of the following commands are attached as suggested in wiki.ubuntu.com/DebuggingTouchpadDetection. See output.tar.gz. cat /proc/bus/input/devices > ~/devices xinput --list > ~/xinput cat /var/log/Xorg.0.log > Xorg.0.log ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: xserver-xorg-input-synaptics 1.8.1-1ubuntu1 ProcVersionSignature: Ubuntu 3.16.0-31.43-generic 3.16.7-ckt5 Uname: Linux 3.16.0-31-generic x86_64 ApportVersion: 2.14.7-0ubuntu8.2 Architecture: amd64 CurrentDesktop: Unity Date: Thu Mar 12 08:39:59 2015 DistUpgraded: Fresh install DistroCodename: utopic DistroVariant: ubuntu InstallationDate: Installed on 2015-03-12 (0 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: LENOVO 20DFCTO1WW ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-31-generic.efi.signed root=UUID=59254bb2-c791-4b6f-8370-b1209f94accb ro quiet splash vt.handoff=7 SourcePackage: xserver-xorg-input-synaptics UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/08/2014 dmi.bios.vendor: LENOVO dmi.bios.version: J5ET41WW (1.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20DFCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0E50512 STD dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJ5ET41WW(1.12):bd12/08/2014:svnLENOVO:pn20DFCTO1WW:pvrThinkPadE550:rvnLENOVO:rn20DFCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20DFCTO1WW dmi.product.version: ThinkPad E550 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.56-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.2-0ubuntu0.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.2-0ubuntu0.1 version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1.3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2 xserver.bootTime: Thu Mar 12 08:19:45 2015 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Video Bus KEYBOARD, id 7 input AT Translated Set 2 keyboard KEYBOARD, id 8 input PS/2 Generic Mouse MOUSE, id 9 input ThinkPad Extra Buttons KEYBOARD, id 10 xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 14061 vendor AUO xserver.version: 2:1.16.0-1ubuntu1.3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1431338/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

