Finally I made it work changing the Device driver from "ati" to "vesa". I attach a file with : lspci -n, discover, xresprobe, Xorg.0.log and xorg.conf
** Attachment added: "lspci -n, discover, xresprobe, Xorg.0.log and xorg.conf" http://librarian.launchpad.net/4728697/debug_ati_x600.tgz -- Installer won't detect video card Radeon X600 https://launchpad.net/bugs/64825 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
