Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.5 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.5-wily/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => 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/1562155 Title: Touchpad stopped functioning after kernel update for Dell Chromebook "Candy" Status in linux package in Ubuntu: Incomplete Bug description: Upon successful installation of Ubuntu 15.10, I ran the usual updates and after restarting, the touchpad stopped working. I booted into kernel version 4.2.0-16 instead of the updated kernel 4.2.0-34, and the touchpad that had stopped working functioned as usual once more. Changing back into the latest kernel disabled the touchpad once more. I am installing Ubuntu on the Dell Chromebook 11 "Candy" running Intel Celeron(R) CPU N2840 (Baytrail) processor. This deployment is being used for several lab machines of the same model. Steps to reproduce: 1. Install Ubuntu 15.10. 2. Run update. Expected: 1. All hardware to work prior to update. Instead: 1. Touchpad stopped working. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-34-generic 4.2.0-34.39 ProcVersionSignature: Ubuntu 4.2.0-34.39-generic 4.2.8-ckt4 Uname: Linux 4.2.0-34-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: unllife121l 980 F.... pulseaudio Date: Fri Mar 25 15:33:10 2016 HibernationDevice: RESUME=UUID=44e6cef0-6fe7-4afe-a5f9-0a8d60224b28 InstallationDate: Installed on 2016-03-24 (0 days ago) InstallationMedia: Ubuntu-MATE 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: GOOGLE Candy ProcEnviron: LANGUAGE=en_US TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-34-generic root=UUID=a7c1001c-8167-4541-b62e-e2cf805003d8 ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.2.0-34-generic N/A linux-backports-modules-4.2.0-34-generic N/A linux-firmware 1.149.3 SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/20/2014 dmi.bios.vendor: coreboot dmi.chassis.type: 3 dmi.chassis.vendor: GOOGLE dmi.modalias: dmi:bvncoreboot:bvr:bd11/20/2014:svnGOOGLE:pnCandy:pvr1.0:cvnGOOGLE:ct3:cvr: dmi.product.name: Candy dmi.product.version: 1.0 dmi.sys.vendor: GOOGLE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1562155/+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