you can find old builds of xserver-xorg-core by following the links for your architecture at the bottom of
https://launchpad.net/ubuntu/+source/xorg-server/2:1.5.1-1ubuntu2
(for instance, this could lead to https://launchpad.net/ubuntu/intrepid/i386/xserver-xorg-core/2:1.5.1-1ubuntu2 and finally http://launchpadlibrarian.net/18263189/xserver-xorg-core_1.5.1-1ubuntu2_i386.deb )
you can find old builds of xserver-xorg-core by following the links for your architecture at the bottom of
https:/ /launchpad. net/ubuntu/ +source/ xorg-server/ 2:1.5.1- 1ubuntu2
(for instance, this could lead to /launchpad. net/ubuntu/ intrepid/ i386/xserver- xorg-core/ 2:1.5.1- 1ubuntu2 launchpadlibrar ian.net/ 18263189/ xserver- xorg-core_ 1.5.1-1ubuntu2_ i386.deb
https:/
and finally
http://
)