I have since tried disabling Compiz and this feature started working correctly again. It thus appears to be a problem with Compiz, at least when running in nVidia TwinHead mode.
-- Drag & drop between Nautilus windows fails on dual-head setup https://bugs.launchpad.net/bugs/112107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs