Bug#906903: nvidia-driver: broken(?) dependencies

[Vincent McIntyre]

> 
> Are you sure? Your first email showed the priority of one pkg as "990"
> rather than the default 500

I agree it is strange but apt-cache priority scores
never make any sense to me.

$ /bin/ls /etc/apt/preferences.d/
backports

I tried the obvious experiment
$ cat /etc/apt/preferences.d/stable
Package: *
Pin: release a=stretch
Pin-Priority: 500

$ apt-cache policy nvidia-driver
nvidia-driver:
  Installed: (none)
  Candidate: 384.130-1
  Version table:
     390.77-1~bpo9+1 200
        200 http://debian-archive.atnf.csiro.au:9999/debian stretch-backports/non-free amd64 Packages
     384.130-1 990
        990 http://debian-archive.atnf.csiro.au:9999/debian stretch/non-free amd64 Packages


So you see why I don't spend much time trying to understand
prority scores.


Perhaps something in apt.conf is causing the score to come out higher?

$ grep -v '^#' /etc/apt/apt.conf
APT::Default-Release "stretch";
APT::Cache-Limit "52500000";
APT::Install-Recommends "false";
APT::Install-Suggests "false";
APT::Clean-Installed "false";
Acquire::Pdiffs "false"; 
Periodic::Update-Package-Lists "false";
Aptitude::Install-Recommends "false";
Aptitude::Install-Suggests "false";
Aptitude::Keep-Recommends "true";
Aptitude::Keep-Suggests "true";
Aptitude::Delete-Unused "false";
Aptitude::Remove-Unused "false";
Aptitude::Show-Deps "true";
Aptitude::Show-Size-Changes "true";
Aptitude::Verbose 0;
Aptitude::Recommends-Important "false";
Aptitude::Suggests-Important "false";

Vince