When attempting to start Synaptic, I got this message:
What can I do?

probably: To make Synaptic fully functional, please restart your session without Wayland.

http://forums.debian.net/viewtopic.php?f=6&t=142634

1 members found this post helpful.

Sure, I tried to login with the other options and still doesn't work.

1 members found this post helpful.

Ok, I logged out and logged it with all the other options:

System XII Default
GNOME
GNOME classic
GNOME damont Xorg

and I couldn't start Synaptic fully optional while I was logged in those different environments.

Please, have in mind that I am a newbie. Thanks

Did you even click on the links provided, let alone read them?

It seems OP of the debian thread provided a potential solution, which of course you have tried on your own machine, and are therefore able to provide a full set of troubleshooting information according to post #4.

Being a newbie is not an excuse for not doing your homework. We aren't at your home to do it for you.

No wonder one sees so many broken systems when package management is trusted to this bug fest : https://bugs.debian.org/cgi-bin/pkgr...ckage=synaptic

Anyway, refer to changelogs: https://metadata.ftp-master.debian.o...nmu1_changelog

synaptic uses pkexec to gain root privileges, so you should not even be running it from a terminal as root regardless.

This is the situation in buster:
In unstable which is currently at 0.9, the issue has apparently been resolved.
Version of gnome/mutter in buster is 3.30.2 - so unless you want do some extensive backporting... you can either:

1) Forget it and use apt-get for package management - i.e "the package manager" and not some bug ridden, flakey, gtk based mess of a front end.
2) Upgrade to testing or unstable.

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Sound advice.
I think it's just "apt" nowadays.

Not quite - refer to man pages.

Does anyone know any useful links that shows how to do that option?

I hope that messages doesn't annoy anyone, but I am trying to find the solution and spending lot of time with it, but don't have enough knowledge to do it on my own.

thanks a lot

That's OK, not everybody knows how to use a search engine.
Here you go:
https://duckduckgo.com/?q=debian+upg...sting+unstable

If you're relying on a GUI for package management I don't think that running testing or unstable are likely to be good options for you.

what do you recommend?

thanks,
g

You have been given advice enough, in order for you to discern for yourself that upgrading to testing or unstable for the sole purpose of being able to continue using a bug ridden graphical package managrment front end, might not be the best aporoach. My suggestion: Learn to use command line tools.

The apt "high level" package tool in particular, is an easier to use alternative to the apt-get / apt-cache tools. You might also want to look at aptitude's ncurses interface.

Invoke synaptic from a terminal using the following command:

sudo -E synaptic

If you are running on wayland-only machine, you can probably get away with changing the application desktop file for synaptic such that the exec command is sudo -E synaptic . You're on your own here, though, since I run a mixed x11/ Wayland user space.