Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.7 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/v4.7-rc5-yakkety/ ** 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/1598139 Title: Unable to detect Synaptics Touchpad on Ubuntu 14.04, Dell Inspiron 5558 Status in linux package in Ubuntu: Incomplete Bug description: I have been debugging the touchpad issue by following https://wiki.ubuntu.com/DebuggingTouchpadDetection. I can use a USB mouse but, I have not been able to reinstall the drivers for touchpad nor have I been able to detect any trace of Synaptics on cat /proc/bus/input/devices Please find the dmesg attached. --- ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: surukam 2658 F.... pulseaudio /dev/snd/controlC1: surukam 2658 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=ce149592-9dac-47c6-8b7b-2148ee84f191 InstallationDate: Installed on 2016-02-08 (143 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: Dell Inc. Inspiron 5558 NonfreeKernelModules: nvidia Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-77-generic.efi.signed root=UUID=4d875258-bf8d-4873-a052-00722f12a6b4 ro quiet splash acpi_backlight=vendor vt.handoff=7 ProcVersionSignature: Ubuntu 3.13.0-77.121-generic 3.13.11-ckt32 RelatedPackageVersions: linux-restricted-modules-3.13.0-77-generic N/A linux-backports-modules-3.13.0-77-generic N/A linux-firmware 1.127.5 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no StagingDrivers: rts5139 Tags: trusty staging Uname: Linux 3.13.0-77-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/26/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A05 dmi.board.name: 086DKN dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA05:bd08/26/2015:svnDellInc.:pnInspiron5558:pvr01:rvnDellInc.:rn086DKN:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Inspiron 5558 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1598139/+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
