(Previously hostnamed 'Theseus' before an apt-get upgrade crashed that brought it out of service for a while).
This is my Dell laptop computer acquired in December (2017), an enhanced version of wulfrun.
To disactivate the touchpad:
xinput set-prop 12 "Device Enabled" 0
I ran into problems with mySQL:
dpkg: error processing package mysql-server-5.7 (--configure): installed mysql-server-5.7 package post-installation script subprocess returned error exit status 127 dpkg: dependency problems prevent configuration of mysql-server: mysql-server depends on mysql-server-5.7; however: Package mysql-server-5.7 is not configured yet. <pre> which were fixed following threads #16 and #18 [https://ubuntuforums.org/showthread.php?t=1763604&page=2 here]. In particular, removing (apt-remove) packages listed through: dpkg -l | grep -i mysql Although not all of them would go (e.g., akonadi).</span>