I can confirm that this is still happening in 12.04. There is a kernel
bug since sometimes the touchpad is recognized and sometimes not (on a
random basis) with no clue of what's causing it.

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

** Description changed:

  The touchpad does not work. Although I can toggle on and off the orange
  button for touchpad activation it does not work.
  
  I: Bus=0011 Vendor=0001 Product=0001 Version=ab41
  N: Name="AT Translated Set 2 keyboard"
  P: Phys=isa0060/serio0/input0
  S: Sysfs=/devices/platform/i8042/serio0/input/input4
  U: Uniq=
  H: Handlers=sysrq kbd event4
  B: PROP=0
  B: EV=120013
  B: KEY=402000000 3803078f800d001 feffffdfffefffff fffffffffffffffe
  B: MSC=10
  B: LED=7
  
  $ xinput list
  ⎡ Virtual core pointer                        id=2    [master pointer  (3)]
  ⎜   ↳ Virtual core XTEST pointer                      id=4    [slave  pointer 
 (2)]
  ⎜   ↳ Genius Optical Mouse                            id=10   [slave  pointer 
 (2)]
  ⎣ Virtual core keyboard                       id=3    [master keyboard (2)]
      ↳ Virtual core XTEST keyboard                     id=5    [slave  
keyboard (3)]
      ↳ Power Button                                    id=6    [slave  
keyboard (3)]
      ↳ Video Bus                                       id=7    [slave  
keyboard (3)]
      ↳ Power Button                                    id=8    [slave  
keyboard (3)]
      ↳ Sleep Button                                    id=9    [slave  
keyboard (3)]
      ↳ Video WebCam                                    id=11   [slave  
keyboard (3)]
      ↳ AT Translated Set 2 keyboard                    id=12   [slave  
keyboard (3)]
  ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC272X Analog [ALC272X Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC272X Analog [ALC272X Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mihai      1638 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xd6700000 irq 45'
     Mixer name : 'Realtek ALC272X'
     Components : 'HDA:10ec0272,10250212,00100001'
     Controls      : 17
     Simple ctrls  : 10
  DistroRelease: Ubuntu 11.10
  HibernationDevice: RESUME=UUID=35de770c-d2d4-4c04-bc43-5a8b2e0e4ef5
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110803.1)
  MachineType: eMachines eMachines E525
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.0.0-8-generic 
root=UUID=5dba6b1d-317a-4606-b399-7b47088ad762 ro rootflags=subvol=@ quiet 
splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.0.0-8.11-generic 3.0.1
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-8-generic N/A
   linux-backports-modules-3.0.0-8-generic  N/A
   linux-firmware                           1.59
  Tags:  oneiric running-unity
  Uname: Linux 3.0.0-8-generic x86_64
  UpgradeStatus: Upgraded to oneiric on 2011-08-10 (4 days ago)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
  dmi.bios.date: 11/04/2010
  dmi.bios.vendor: eMachines
  dmi.bios.version: V3.10
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: eMachines E525
  dmi.board.vendor: eMachines
  dmi.board.version: V3.10
  dmi.chassis.type: 10
  dmi.chassis.vendor: eMachines
  dmi.chassis.version: V3.10
  dmi.modalias: 
dmi:bvneMachines:bvrV3.10:bd11/04/2010:svneMachines:pneMachinesE525:pvrV3.10:rvneMachines:rneMachinesE525:rvrV3.10:cvneMachines:ct10:cvrV3.10:
  dmi.product.name: eMachines E525
  dmi.product.version: V3.10
  dmi.sys.vendor: eMachines
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC272X Analog [ALC272X Analog]
     Subdevices: 0/1
     Subdevice #0: subdevice #0
  ApportVersion: 2.0.1-0ubuntu6
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC272X Analog [ALC272X Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mihai      1921 F.... pulseaudio
   /dev/snd/pcmC0D0p:   mihai      1921 F...m pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 
not found.
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xd6700000 irq 45'
     Mixer name : 'Realtek ALC272X'
     Components : 'HDA:10ec0272,10250212,00100001'
     Controls      : 17
     Simple ctrls  : 9
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=a898f71e-c27d-41a2-b5e7-8fa225cd9349
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
  MachineType: eMachines eMachines E525
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.2.0-23-generic 
root=UUID=398c7327-246d-456d-973b-8acf8cee5ce0 ro rootflags=subvol=@ quiet 
splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-23-generic N/A
   linux-backports-modules-3.2.0-23-generic  N/A
   linux-firmware                            1.79
  SourcePackage: linux
  Tags:  precise precise
  Uname: Linux 3.2.0-23-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 11/04/2010
  dmi.bios.vendor: eMachines
  dmi.bios.version: V3.10
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: eMachines E525
  dmi.board.vendor: eMachines
  dmi.board.version: V3.10
  dmi.chassis.type: 10
  dmi.chassis.vendor: eMachines
  dmi.chassis.version: V3.10
  dmi.modalias: 
dmi:bvneMachines:bvrV3.10:bd11/04/2010:svneMachines:pneMachinesE525:pvrV3.10:rvneMachines:rneMachinesE525:rvrV3.10:cvneMachines:ct10:cvrV3.10:
  dmi.product.name: eMachines E525
  dmi.product.version: V3.10
  dmi.sys.vendor: eMachines
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC272X Analog [ALC272X Analog]
     Subdevices: 0/1
     Subdevice #0: subdevice #0
  ApportVersion: 2.0.1-0ubuntu6
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC272X Analog [ALC272X Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mihai      1921 F.... pulseaudio
   /dev/snd/pcmC0D0p:   mihai      1921 F...m pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 
not found.
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xd6700000 irq 45'
     Mixer name : 'Realtek ALC272X'
     Components : 'HDA:10ec0272,10250212,00100001'
     Controls      : 17
     Simple ctrls  : 9
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=a898f71e-c27d-41a2-b5e7-8fa225cd9349
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
  MachineType: eMachines eMachines E525
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.2.0-23-generic 
root=UUID=398c7327-246d-456d-973b-8acf8cee5ce0 ro rootflags=subvol=@ quiet 
splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-23-generic N/A
   linux-backports-modules-3.2.0-23-generic  N/A
   linux-firmware                            1.79
  SourcePackage: linux
  Tags:  precise precise
  Uname: Linux 3.2.0-23-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 11/04/2010
  dmi.bios.vendor: eMachines
  dmi.bios.version: V3.10
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: eMachines E525
  dmi.board.vendor: eMachines
  dmi.board.version: V3.10
  dmi.chassis.type: 10
  dmi.chassis.vendor: eMachines
  dmi.chassis.version: V3.10
  dmi.modalias: 
dmi:bvneMachines:bvrV3.10:bd11/04/2010:svneMachines:pneMachinesE525:pvrV3.10:rvneMachines:rneMachinesE525:rvrV3.10:cvneMachines:ct10:cvrV3.10:
  dmi.product.name: eMachines E525
  dmi.product.version: V3.10
  dmi.sys.vendor: eMachines
+ --- 
+ AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
+ AplayDevices:
+  **** List of PLAYBACK Hardware Devices ****
+  card 0: Intel [HDA Intel], device 0: ALC272X Analog [ALC272X Analog]
+    Subdevices: 1/1
+    Subdevice #0: subdevice #0
+ ApportVersion: 2.0.1-0ubuntu9
+ Architecture: amd64
+ ArecordDevices:
+  **** List of CAPTURE Hardware Devices ****
+  card 0: Intel [HDA Intel], device 0: ALC272X Analog [ALC272X Analog]
+    Subdevices: 1/1
+    Subdevice #0: subdevice #0
+ AudioDevicesInUse:
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  mihai     24970 F.... pulseaudio
+ CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 
not found.
+ Card0.Amixer.info:
+  Card hw:0 'Intel'/'HDA Intel at 0xd6700000 irq 45'
+    Mixer name : 'Realtek ALC272X'
+    Components : 'HDA:10ec0272,10250212,00100001'
+    Controls      : 18
+    Simple ctrls  : 10
+ DistroRelease: Ubuntu 12.04
+ HibernationDevice: RESUME=UUID=a898f71e-c27d-41a2-b5e7-8fa225cd9349
+ InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
+ MachineType: eMachines eMachines E525
+ NonfreeKernelModules: wl
+ Package: linux (not installed)
+ ProcFB: 0 inteldrmfb
+ ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.2.0-25-generic 
root=UUID=398c7327-246d-456d-973b-8acf8cee5ce0 ro rootflags=subvol=@ quiet 
splash vt.handoff=7
+ ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
+ RelatedPackageVersions:
+  linux-restricted-modules-3.2.0-25-generic N/A
+  linux-backports-modules-3.2.0-25-generic  N/A
+  linux-firmware                            1.79
+ Tags:  precise
+ Uname: Linux 3.2.0-25-generic x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
+ dmi.bios.date: 11/04/2010
+ dmi.bios.vendor: eMachines
+ dmi.bios.version: V3.10
+ dmi.board.asset.tag: Base Board Asset Tag
+ dmi.board.name: eMachines E525
+ dmi.board.vendor: eMachines
+ dmi.board.version: V3.10
+ dmi.chassis.type: 10
+ dmi.chassis.vendor: eMachines
+ dmi.chassis.version: V3.10
+ dmi.modalias: 
dmi:bvneMachines:bvrV3.10:bd11/04/2010:svneMachines:pneMachinesE525:pvrV3.10:rvneMachines:rneMachinesE525:rvrV3.10:cvneMachines:ct10:cvrV3.10:
+ dmi.product.name: eMachines E525
+ dmi.product.version: V3.10
+ dmi.sys.vendor: eMachines

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https://bugs.launchpad.net/bugs/826141

Title:
  no touchpad in Ubuntu 11.10 - Emachines E525 905g23MI

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