I think both files come from Debian. I did an 'apt-get source x11-common' and I see that debian/x11-common.install installs stuff from debian/local/Xsession.d. I see both files there:
stefan@spuiu-vm:~/src/ubuntu/xorg-7.7+19ubuntu14$ grep -rn xhost debian/local/Xsession.d/ debian/local/Xsession.d/35x11-common_xhost-local:3:# If xhost (from x11-xserver-utils) is installed, use it to give access debian/local/Xsession.d/35x11-common_xhost-local:5:# Unlike other uses of xhost, this is safe since the kernel can check debian/local/Xsession.d/35x11-common_xhost-local:8:if type xhost >/dev/null 2>&1; then debian/local/Xsession.d/35x11-common_xhost-local:9: xhost +si:localuser:$(id -un) || : debian/local/Xsession.d/60x11-common_localhost:3:[ -x /usr/bin/xhost ] && [ -x /usr/bin/id ] && debian/local/Xsession.d/60x11-common_localhost:4: xhost +si:localuser:`id -un` > /dev/null -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1576454 Title: Superfluous Xsession.d script: 60x11-common_localhost To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1576454/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs