I think it's not clear from the original bug report that this is a AIGLX/XGL issue, because gnome-terminal has the same transparency as xchat(-gnome) has with metacity.
-- xchat does not do composite transparency https://launchpad.net/bugs/92028 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
