@Kai-Heng Feng (kaihengfeng) , yes, after adding that line in sudo gedit /etc/default/grub :
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i8042.notimeout i8042.nomux"
Then updated, via :
sudo update-grub
Hence it works .
ref link : https://askubuntu.com/questions/533903/fujitsu-lifebook-ah544-touch-pad-not-working-in-ubuntu-14-04
@Kai-Heng Feng (kaihengfeng) , yes, after adding that line in sudo gedit /etc/default/grub :
GRUB_CMDLINE_ LINUX_DEFAULT= "quiet splash i8042.notimeout i8042.nomux"
Then updated, via :
sudo update-grub
Hence it works .
ref link : https:/ /askubuntu. com/questions/ 533903/ fujitsu- lifebook- ah544-touch- pad-not- working- in-ubuntu- 14-04