I had this same problem upgrading, but with nvidia-glx-dev. I'm also using envy.
A part of my term.log Preparando para substituir nvidia-glx-dev 1.0.9755 (usando .../nvidia-glx-dev_1% 3a1.0.9631+2.6.20.5-15.20_i386.deb) ... dpkg-divert: `diversion of /usr/lib/libGL.so to /usr/lib/nvidia/libGL.so.xlibmes a by nvidia-glx-dev' conflita com `diversion of /usr/lib/libGL.so to /usr/lib/nv idia/libGL.so.xlibmesa by nvidia-glx' dpkg: erro processando /var/cache/apt/archives/nvidia-glx-dev_1%3a1.0.9631+2.6.2 0.5-15.20_i386.deb (--unpack): subprocesso pre-installation script retornou código de saída de error 2 But i just selected ok and the upgrade continued. i'm attaching my files with someone get interested. thanks@ ** Attachment added: "Márcio's term.log" http://librarian.launchpad.net/7371124/term.log -- update-manager error installing nvidia-glx https://bugs.launchpad.net/bugs/106518 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