There for my experience: I've had a lot of troubles because xserver-xorg-core wouldn't upgrade to the latest version. Eventually, dpkg would litter my terminal with
package ... depends on xserver-xorg-core (>= 2:1.4) ; however : The version of xserver-xorg-core on the system is 2:1.3.0.0.dfsg-12ubuntu8.3. errors. After some digging, I could determine the cause of xserver-xorg-core not having been updated: xserver-xorg-core conflicts with xserver-xorg-video nvidia-glx provides xserver-xorg-video and is installed. Why would nvidia-glx mess with ? Because it could not be installed, as it was looking for /usr/X11R6/lib/libGL.so.1 (not found at the moment). So while I may have had some traces of nvidia hacking during the Hoary -> Dapper upgrade (not smooth at all, nvidia-wise, maybe worsened by the XFree -> Xorg transition at the same time) and the Dapper -> Gusty one (though a smoother transition), I'm surprised this troubled now. I ended up mkdir /usr/X11R6/lib cp /usr/lib/libGL.so.1 /usr/X11R6/lib Then dpkg -r nvidia-glx # hit y ! did 99% of the pending updates. I let the driver manager care about installing the nvidia drivers, and that was smooooooth ! (Sorry for the maybe inexact translation of apt-message from french) -- package xserver-xorg-core 2:1.3.0.0.dfsg-12ubuntu8.3 [modified: usr/lib/xorg/modules/extensions/libglx.so] failed to install/upgrade: https://bugs.launchpad.net/bugs/219321 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs