xdpyinfo, /proc/PID/maps file from Xorg and xrandr, from both Edgy and Dapper.
** Attachment added: "Comparision of Xorg on Edgy (bad) vs Dapper (good)" http://librarian.launchpad.net/5096550/Xorg-dapper-to-edgy.tar.gz -- [Regression] Bad resolution choices on Edgy live CD https://launchpad.net/bugs/72153 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
