how to downgrade nvidia-graphics-drivers packages?

[Harald Dunkel]

Hi folks,

Looking at a set of installed binary packages built from the same source
package, I would like to keep the version numbers consistent. There might
be exceptions, but in general you won't like to mix unstable and experimental
binary packages from the nvidia-graphics-drivers, for example.

Question is, how can I tell apt to avoid mixing version numbers?

Regards
Harri

[Dan Ritter]

If they come from different repositories (i.e. backports,
unstable, experimental) you can set priorities in
/etc/apt/preferences.d/ -- read the man page for
apt_preferences, because it's not intuitive.

Package: *
Pin: release a=bookworm
Pin-Priority: 900

Package: *
Pin: release a=bookworm-backports
Pin-Priority: 50

Or you can set things per-package by name, or a variety of other
mechanisms.

-dsr-