look at the comments on the bug. That doesn't look like a gdm bug, rather an xorg one, reassining
** Changed in: gdm (Ubuntu) Sourcepackagename: gdm => xorg -- Incorrect resolution even after changing desktop resolution https://launchpad.net/bugs/47183 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
