I found the porblem. All distributions which provide the file /var/lib/gconf/debian.defaults /%gconf-tree.xml override the detection of the right dpi.
Patch is being made. -- GNOME default DPI doesn't match X default DPI https://bugs.launchpad.net/bugs/157398 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs