Originally Posted by cdysthe
Well I do not really worry that much, but I've been around Linux for so long I know error messages may seem innocent until an "oh shi*" happnens, so I always try to figure out what's wrong. I have never had any error messages with the nvidia driver installer in the past, so something updated on LMDE causes the nvidia installer to spit out these messages!
that lib is provided by xorg-core
and the nVidia driver just check it out before replacing it, so not finding it in the first place is not a problem
i usually rmmod nvidia ; nvidia-uninstall.sh ; apt-get install --reinstall xserver-xorg-core
before re-installing on a kernel upgrade or before upgrading the nVidia driver so that it sees a clean state system