Bug#761062: Upgrading from 304.117-1 to 340.32-1 with older graphics card leaves system without X Windows

[Marvin Renich]

Source: nvidia-graphics-drivers
Version: 340.32-1
Severity: important

On a machine with a graphics card supported by version 304, but
relegated to the legacy packages for version 340, upgrading the
nvidia-kernel-dkms and nvidia-driver packages leaves the system with an
unusable X Windows system.

The preinst script should determine if the hardware was supported by the
old version of the package but not the new version, and give the
sysadmin an opportunity to fail the upgrade, with an appropriate
explanation.


-- System Information:
Debian Release: 7.6
  APT prefers stable
  APT policy: (990, 'stable'), (500, 'testing-updates'), (500, 'stable-updates'), (500, 'testing'), (200, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.2.0-4-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash