Hit:1 http://us.archive.ubuntu.com/ubuntu xenial InRelease
Hit:2 http://us.archive.ubuntu.com/ubuntu xenial-updates InRelease             
Hit:3 http://us.archive.ubuntu.com/ubuntu xenial-backports InRelease           
Hit:4 http://ppa.launchpad.net/graphics-drivers/ppa/ubuntu xenial InRelease    
Hit:5 http://security.ubuntu.com/ubuntu xenial-security InRelease        
Get:6 http://ppa.launchpad.net/graphics-drivers/ppa/ubuntu xenial/main Sources [4,748 B]
Fetched 4,748 B in 0s (11.7 kB/s)    
Reading package lists... Done
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1
W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1
W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1
W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1
W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1
W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1
W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/graphics-drivers-ubuntu-ppa-xenial.list:1