Unable to detect Synaptics Touchpad on Ubuntu 14.04, Dell Inspiron 5558

[Harsha]

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.

[Harsha (shramesh)]

Adding the output of cat /proc/bus/input/devices > ~/devices

[Harsha (shramesh)]

Adding the /var/log/Xorg.0.log

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1598139

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Harsha (shramesh)]

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[Harsha (shramesh)]

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[Harsha (shramesh)]

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[Harsha (shramesh)]

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[Joseph Salisbury (jsalisbury)]

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/

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]