Ubuntu 14.04 entirely does not see a touchpad with its buttons on my Dell Inspiron 14 3000 laptop. Re-installed Ubuntu - result is the same - no touchpad. I ran some diagnostics and here are the results:


⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Logitech Unifying Device. Wireless PID:400a   id=10   [slave  pointer  (2)]
⎜   ↳ DLL06AB:00 06CB:78F1                      id=12   [slave  pointer  (2)]
⎜   ↳ SynPS/2 Synaptics TouchPad                id=14   [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)]
    ↳ Integrated_Webcam_HD                      id=11   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=13   [slave  keyboard (3)]
    ↳ Dell WMI hotkeys                          id=15   [slave  keyboard (3)]


I: Bus=0011 Vendor=0002 Product=0007 Version=01a1
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input7
U: Uniq=
H: Handlers=mouse0 event5 
B: EV=b
B: KEY=e520 610000 0 0 0 0
B: ABS=660800011000003

dmesg | grep -e mouse -e Mouse:

[    0.873072] mousedev: PS/2 mouse device common for all mice
[    1.910005] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2a1, caps: 0xf40123/0x840300/0x12e800, board id: 3096, fw id: 1781191
[    8.856506] hid-rmi 0018:06CB:78F1.0001: input,hidraw0: <UNKNOWN> HID v1.00 Mouse [DLL06AB:00 06CB:78F1] on 
[  268.775269] logitech-djdevice 0003:046D:C52B.0005: input,hidraw2: USB HID v1.11 Mouse [Logitech Unifying Device. Wireless PID:400a] on usb-0000:00:14.0-1:1
  • David, thanks for advices and for help with the formatting.
    – Vlad
    Apr 11, 2015 at 14:15
  • I was asking for help but got that abracadabra instead. Is it a usual way to respond in this community?
    – Vlad
    May 1, 2015 at 22:35
  • possible duplicate of Dell Inspiron 3551 Unresponsive Touchpad
    – Pilot6
    Jul 4, 2015 at 9:57

1 Answer 1


From: http://fr.community.dell.com/forums_daide/ordinateurs_portables_-_matriel/f/14/t/4074

Pour votre information et si qqn est amené à requérir votre aide sur le touchpad, voici comment résoudre le défaut.

Ce problème se règle assez facilement, quand on sait quoi faire ! Il faut ajouter une ligne à un fichier de configuration pour “blacklister” un certain pilote, qui entre en conflit avec la reconnaissance du touchpad. La procédure est simple, il suffit d'ouvrir le Terminal (depuis le menu Unity, taper “terminal” pour retrouver l'application et la lancer) et de copier-coller la commande suivante (évidemment, appuyer sur Entrée ensuite)

In terminal, run:

echo "blacklist i2c_hid" | sudo tee -a /etc/modprobe.d/blacklist.conf

Then restart and the touchpad should work properly.

  • 1
    I can confirm that this works with Ubuntu 14.04.1. I don't know why someone else down voted it.
    – Gourneau
    May 26, 2015 at 19:57

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.