Hi, I write here cause I'm not sure where report this issue. It happens when upgrading my system via apt-get. The upgrade includes linux-image-3.9.1-amd64 but does not include nvidia-kernel-3.9.1-amd64 in which depends the nvidia proprietary driver.
So the result was a X system breaks, that cannot be loaded cause X.org not found the nvidia module. The issue can be solved installing manually the related nvidia-kernel package. Any comment about how can this issue be reported? Thanks, Chk