This is a bug in Qt4, then - libgl1-mesa was obsoleted by libgl1-mesa- glx on Edgy.
** Changed in: xorg (Ubuntu) Status: Unconfirmed => Rejected ** Also affects: qt4-x11 (Ubuntu) Importance: Untriaged Status: Unconfirmed -- xorg_1:7.0.22ubuntu7 depends on specific libgl1-mesa https://launchpad.net/bugs/54560 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs