follow-up (and problems) about: recommendation for all-in-one printer?

[Liam Proven]

On Thu, 5 Nov 2020 at 20:11, M. Fioretti <mfioretti at nexaima.net> wrote:
> [...] and of how I made the scanner work here:
>
> https://alioth-lists.debian.net/pipermail/sane-devel/2020-November/038507.html

Comment:

«
sudo add-apt-repository ppa:sane-project/sane-git
sudo apt-get update
sudo apt-get upgrade
sudo apt autoremove
sudo apt install libsane libsane-common sane-utils
»

That should be apt-get full-upgrade.

`apt upgrade` is the equivalent of `apt-get upgrade`. It installs new
versions of existing packages but it will not add packages or
additional dependencies.

`apt full-upgrade` is the equivalent of the old `apt-get
dist-upgrade`. If a new version needs a new dependency or library or
something, it will do it.

Use `full-upgrade`. It does a more thorough job.

There is no point doing `autoremove` *before* installing new software.
Do it afterwards, if at all. It's not really necessary every time,
only if apt tells you obsolete packages are left.

> so I will not repeat them here. Any suggestion on how to debug the
> printer issue is obviously welcome.

Unplug and/or turn off the printer.
Remove *both* copies.
Reboot.
Try adding or auto-detecting the printer again.


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