To help others with reverting to a prior version of libgl1-mesa graphics drivers, I have provided the following download links.
libgl1-mesa .deb packages (14 files) - Search for "Downloadable files" ----------------------------------------------------------------------
https://launchpad.net/ubuntu/xenial/amd64/libegl1-mesa/17.2.8-0ubuntu0~16.04.1
https://launchpad.net/ubuntu/xenial/amd64/libgbm1/17.2.8-0ubuntu0~16.04.1
https://launchpad.net/ubuntu/xenial/amd64/libgl1-mesa-dri/17.2.8-0ubuntu0~16.04.1 https://launchpad.net/ubuntu/xenial/i386/libgl1-mesa-dri/17.2.8-0ubuntu0~16.04.1
https://launchpad.net/ubuntu/xenial/amd64/libgl1-mesa-glx/17.2.8-0ubuntu0~16.04.1 https://launchpad.net/ubuntu/xenial/i386/libgl1-mesa-glx//17.2.8-0ubuntu0~16.04.1
https://launchpad.net/ubuntu/xenial/amd64/libglapi-mesa/17.2.8-0ubuntu0~16.04.1 https://launchpad.net/ubuntu/xenial/i386/libglapi-mesa/17.2.8-0ubuntu0~16.04.1
https://launchpad.net/ubuntu/xenial/amd64/libgles2-mesa/17.2.8-0ubuntu0~16.04.1
https://launchpad.net/ubuntu/xenial/amd64/libosmesa6/17.2.8-0ubuntu0~16.04.1 https://launchpad.net/ubuntu/xenial/i386/libosmesa6/17.2.8-0ubuntu0~16.04.1
https://launchpad.net/ubuntu/xenial/amd64/libwayland-egl1-mesa/17.2.8-0ubuntu0~16.04.1
https://launchpad.net/ubuntu/xenial/amd64/libxatracker2/17.2.8-0ubuntu0~16.04.1
https://launchpad.net/ubuntu/xenial/amd64/mesa-vdpau-drivers/17.2.8-0ubuntu0~16.04.1
libllvm5 .deb packages (2 files) - Search for "Binary Package" --------------------------------------------------------------
https://ubuntu.pkgs.org/16.04/ubuntu-updates-main-i386/libllvm5.0_5.0-3~16.04.1_i386.deb.html https://ubuntu.pkgs.org/16.04/ubuntu-updates-main-amd64/libllvm5.0_5.0-3~16.04.1_amd64.deb.html
To help others with reverting to a prior version of libgl1-mesa
graphics drivers, I have provided the following download links.
libgl1-mesa .deb packages (14 files) - Search for "Downloadable files" ------- ------- ------- ------- ------- ------- ------- ------- -------
-------
https:/ /launchpad. net/ubuntu/ xenial/ amd64/libegl1- mesa/17. 2.8-0ubuntu0~ 16.04.1
https:/ /launchpad. net/ubuntu/ xenial/ amd64/libgbm1/ 17.2.8- 0ubuntu0~ 16.04.1
https:/ /launchpad. net/ubuntu/ xenial/ amd64/libgl1- mesa-dri/ 17.2.8- 0ubuntu0~ 16.04.1 /launchpad. net/ubuntu/ xenial/ i386/libgl1- mesa-dri/ 17.2.8- 0ubuntu0~ 16.04.1
https:/
https:/ /launchpad. net/ubuntu/ xenial/ amd64/libgl1- mesa-glx/ 17.2.8- 0ubuntu0~ 16.04.1 /launchpad. net/ubuntu/ xenial/ i386/libgl1- mesa-glx/ /17.2.8- 0ubuntu0~ 16.04.1
https:/
https:/ /launchpad. net/ubuntu/ xenial/ amd64/libglapi- mesa/17. 2.8-0ubuntu0~ 16.04.1 /launchpad. net/ubuntu/ xenial/ i386/libglapi- mesa/17. 2.8-0ubuntu0~ 16.04.1
https:/
https:/ /launchpad. net/ubuntu/ xenial/ amd64/libgles2- mesa/17. 2.8-0ubuntu0~ 16.04.1
https:/ /launchpad. net/ubuntu/ xenial/ amd64/libosmesa 6/17.2. 8-0ubuntu0~ 16.04.1 /launchpad. net/ubuntu/ xenial/ i386/libosmesa6 /17.2.8- 0ubuntu0~ 16.04.1
https:/
https:/ /launchpad. net/ubuntu/ xenial/ amd64/libwaylan d-egl1- mesa/17. 2.8-0ubuntu0~ 16.04.1
https:/ /launchpad. net/ubuntu/ xenial/ amd64/libxatrac ker2/17. 2.8-0ubuntu0~ 16.04.1
https:/ /launchpad. net/ubuntu/ xenial/ amd64/mesa- vdpau-drivers/ 17.2.8- 0ubuntu0~ 16.04.1
libllvm5 .deb packages (2 files) - Search for "Binary Package" ------- ------- ------- ------- ------- ------- ------- ------
-------
https:/ /ubuntu. pkgs.org/ 16.04/ubuntu- updates- main-i386/ libllvm5. 0_5.0-3~ 16.04.1_ i386.deb. html /ubuntu. pkgs.org/ 16.04/ubuntu- updates- main-amd64/ libllvm5. 0_5.0-3~ 16.04.1_ amd64.deb. html
https:/