mouse and keyboard don't work [i8042]

[Joe Black]

System is an Asus EeePC 1225B. Upon booting the live usb disk, touchpad and keyboard don't work. Can't do anything.

Shut down and plug usb mouse. Boot usb disk again and the external usb mouse works (touchpad and keyboard still no go). I start the OS instalation setup and surprise surprise, both touchpad and keyboard start to work. I unplug the usb mouse and everything continues to work. Setup is completed, reboots system, everything is fine.

ProblemType: Bug
DistroRelease: elementary OS 0.2
Package: elementary-desktop 1.284-0~355~precise1 [origin: LP-PPA-elementary-os-daily]
ProcVersionSignature: Ubuntu 3.2.0-32.51-generic 3.2.30
Uname: Linux 3.2.0-32-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.0.1-0ubuntu15
Architecture: amd64
CasperVersion: 1.315+elementary2~precise1
CrashDB: elementary_meta
Date: Sun Nov 25 01:00:02 2012
LiveMediaBuild: elementary OS 0.2 "Luna" - Beta 1 amd64 (20121114)
MarkForUpload: True
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: elementary-meta
SuspiciousXErrors:

ThirdParty: True
UpgradeStatus: No upgrade log present (probably fresh install)

[Joe Black (vscferreira)]

Ok, I managed to solve this. In my report I stated, after having the OS installed, everything worked fine. Well, it didn't. I had the usb mouse connected and thought the problem was solved, but as soon as I used the touchpad I noticed it didn't work. Same with the keyboard.

Anyway, I found quite a few similar reports from ubuntu users. The sugested fix was to edit /etc/default/grub, updating the GRUB_CMDLINE_LINUX_DEFAULT line to: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i8042.reset i8042.nomux" and run update-grub. After rebooting, both keyboard and touchpad work fine. I'm happy! :D

[Sergey "Shnatsel" Davidoff (shnatsel)]

http://unix.stackexchange.com/questions/28736/what-does-the-i8042-nomux-1-kernel-option-do-during-booting-of-ubuntu

[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 1082773

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.

[Joe Black (vscferreira)]

Unfortunately I am unable to run the specified command, not due to the nature of this issue, but because the computer has gone for repairs.

Bug status set to "Confirmed"

[Danielle Foré (danrabbit)]

OP does this still happen with the updated hardware stack in Freya?

[Launchpad Janitor (janitor)]

[Expired for elementary OS because there has been no activity for 60 days.]