Bug#929521: Conflicts in upgrade to 418.74-1 with optimus setup

[ghisvail at gmail.com]

> On Sun, 26 May 2019 23:16:48 +0100 Luca Boccassi <bluca at debian.org>
> wrote:
> > On Sun, 26 May 2019 at 22:45, <ghisvail at gmail.com> wrote:
> > >
> > > Le dimanche 26 mai 2019 à 19:44 +0100, Luca Boccassi a écrit :
> > >
> > >  Yes the 390xx series gets
> > > installed if recommends are enabled, but that was intentional,
> and
> > > it's
> > > sufficient to use --no-install-recommends and the existing series
> was
> > > upgrade just fine.
> > >
> >
> > I wonder why the 390xx legacy drivers are being pulled now. It
> > definitely was not the case when I initially setup my machine with
> an
> > older version of nvidia current.
> >
> > Indeed, `apt install --no-install-recommends bumblebee-nvidia
> primus`
> > does not pull the 390xx series.
> 
> As the changelog says, it's to have a smooth update for i386 as the
> mainline doesn't support it anymore.

I wonder whether the upgrade path really is that smooth though.

Afterall, both Stefan and I experienced conflicts in the upgrade
process on the very same packages (nvidia-nonglvnd-vulkan-common and
primus). Less experienced users may not feel confident performing the
upgrade as a result, either by `synaptic` or `apt full-upgrade` 

Maybe displaying an explanation for this particular upgrade via
NEWS.Debian could help? AFAIC, I was not aware that NVIDIA had indeed
dropped support for 32-bit after release 390 of the drivers.

Cheers,
Ghis