druidaobelix, obrigado por me responder, desculpas por responder só agora, mas n tinha visto antes a mensagem.
Segue abaixo os resultados dos comandos:
cat /etc/*release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.1 LTS"
NAME="Ubuntu"
VERSION="14.04.1 LTS, Trusty Tahr"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 14.04.1 LTS"
VERSION_ID="14.04"
HOME_URL="
http://www.ubuntu.com/"
SUPPORT_URL="
http://help.ubuntu.com/"
BUG_REPORT_URL="
http://bugs.launchpad.net/ubuntu/"
uname -a
Linux ivo-X750LA 3.13.0-37-generic #64-Ubuntu SMP Mon Sep 22 21:28:38 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
xinput --list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Logitech USB Receiver id=12 [slave pointer (2)]
⎜ ↳ Logitech USB Receiver id=13 [slave pointer (2)]
⎜ ↳ SIGMACHIP Usb Mouse id=9 [slave pointer (2)]
⎜ ↳ USB USB Keyboard 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)]
↳ Sleep Button id=8 [slave keyboard (3)]
↳ USB Camera id=14 [slave keyboard (3)]
↳ Asus WMI hotkeys id=15 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=16 [slave keyboard (3)]
↳ USB USB Keyboard id=11 [slave keyboard (3)]