After right password "Access denied" twice and then command run

[Artur005]

Hello!

After some updates I start to have 2x "Access denied" after sudo password in terminal, but it works.
For example, I enter "sudo caja", then enter correct password and output is 2 lines of "Access denied" and then caja starts...
Can anybody explain why it happen?

[Mute Ant]

Running graphic applications using sudo can leave you without proper access to your own files...
http://www.psychocats.net/ubuntu/graphicalsudo
https://askubuntu.com/questions/425620/ ... ifferences

You should never use normal sudo to start graphical applications as Root.You should use gksudo (kdesudo on Kubuntu) to run such programs. gksudo sets HOME=~root, and copies .Xauthority to a tmp directory. This prevents files in your home directory becoming owned by Root.

...and I guess that's what is causing the messages.

[Cosmo.]

output is 2 lines of "Access denied"

Besides that, what Mute Ant wrote - in other words: you create problems on your own - the content of the 2 lines would be needed; or do both lines really say nothing else?

[Artur005]

Hello!

Thanks for answers!
Now I will use gksudo, but I use sudo for 2 years and never have that kind of problem. I use "sudo caja" only for editing system files like rc.local to add services what should be restarted after computer is started.

Today, problem was gone by it self, but then I update Mint, and here it go again...
Output:

adminuser@pg-jupenieks2 ~ $ gksudo caja
Access denied
Access denied
Initializing caja-open-terminal extension

[Cosmo.]

Indeed, only those rather meaningless lines.

I use Cinnamon, so I cannot give Mate specific advices. But some general help:

Create a fresh new user account and check the behavior there.