Public bug reported:

Many times while I am working suddenly the keyboard stop working(can't
fill in any fields but calling a terminal with Ctrl + Alt + T is
possible and also Ctr + Alt + Del to logout) also the mouse partially
hangs and I can't select any of the gnome menu functionality.

mmaia@mmaia-desktop-ubuntu:~$ lsb_release -rd
Description:    Ubuntu 12.04.4 LTS
Release:        12.04

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.5.0-45-generic 3.5.0-45.68~precise1
ProcVersionSignature: Ubuntu 3.5.0-45.68~precise1-generic 3.5.7.26
Uname: Linux 3.5.0-45-generic x86_64
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC2:  mmaia     18387 F.... pulseaudio
 /dev/snd/controlC1:  mmaia     18387 F.... pulseaudio
 /dev/snd/controlC0:  mmaia     18387 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not 
found.
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xf7f30000 irq 55'
   Mixer name   : 'Realtek ALC892'
   Components   : 'HDA:10ec0892,10438436,00100302'
   Controls      : 46
   Simple ctrls  : 21
Card1.Amixer.info:
 Card hw:1 'Device'/'Generic USB Audio Device at usb-0000:00:1a.0-1.3, full 
speed'
   Mixer name   : 'USB Mixer'
   Components   : 'USB0d8c:000e'
   Controls      : 5
   Simple ctrls  : 3
Card2.Amixer.info:
 Card hw:2 'HDMI'/'HDA ATI HDMI at 0xf7e60000 irq 56'
   Mixer name   : 'ATI R6xx HDMI'
   Components   : 'HDA:1002aa01,00aa0100,00100300'
   Controls      : 36
   Simple ctrls  : 6
Date: Sat Feb  1 14:00:20 2014
HibernationDevice: RESUME=UUID=f5bb440d-4557-4c09-9967-8076c171ae60
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 
(20130213)
IwConfig:
 eth0      no wireless extensions.
 
 lo        no wireless extensions.
MachineType: System manufacturer System Product Name
MarkForUpload: True
ProcEnviron:
 SHELL=/bin/bash
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-45-generic 
root=UUID=e98c77a8-f8ee-4bfd-a978-d3209354cbcb ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.5.0-45-generic N/A
 linux-backports-modules-3.5.0-45-generic  N/A
 linux-firmware                            1.79.9
RfKill:
 
SourcePackage: linux-lts-quantal
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
 Feb  1 00:51:45 mmaia-desktop-ubuntu kernel: [  322.334388] type=1400 
audit(1391223105.397:34): apparmor="STATUS" operation="profile_replace" 
name="/usr/sbin/mysqld" pid=6269 comm="apparmor_parser"
 Feb  1 00:51:45 mmaia-desktop-ubuntu kernel: [  322.383402] type=1400 
audit(1391223105.449:35): apparmor="STATUS" operation="profile_replace" 
name="/usr/sbin/mysqld" pid=6303 comm="apparmor_parser"
 Feb  1 02:12:27 mmaia-desktop-ubuntu kernel: [ 5152.332818] type=1400 
audit(1391227947.221:36): apparmor="DENIED" operation="capable" parent=1 
profile="/usr/sbin/cupsd" pid=693 comm="cupsd" pid=693 comm="cupsd" 
capability=36  capname="block_suspend"
dmi.bios.date: 08/03/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1504
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: SABERTOOTH Z77
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr1504:bd08/03/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnSABERTOOTHZ77:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

** Affects: linux-lts-quantal (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise qa-kernel-lts-testing running-unity

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https://bugs.launchpad.net/bugs/1275269

Title:
  keyboard partially hangs

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