Hm, neither dexconf nor dpkg-reconfigure xserver-xorg do the right thing, but let's put this back to r-m for the time being, so that it appears on more of my radars.
** Changed in: xorg (Ubuntu) Sourcepackagename: xorg => restricted-manager -- restricted-manager picks wrong BusID for video cards https://launchpad.net/bugs/91036 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs