Atralb's questions

I just realized there is a /usr/lib/systemd/user/pulseaudio.service provided by the pulseaudio package.

It is disabled but pulseaudio works completely fine without. Have been using it for a year. Don't need to do anything after boot to start the actual executable. It's an Ubuntu shipped-in package after all.

Why is it so ? Should I enable the service ? If so, why doesn't Ubuntu do this by default ? Also, what will change from current operation ?

Thanks in advance

PS: The ubuntu wiki page doesn't give any information.

so the archwiki explains that zathura needs the package zathura-pdf-mupdf for EPUB support.

And this askubuntu thread seems to confirm it works on Ubuntu too.

So I have installed the package thanks to the PPA mentioned in the askubuntu post :

user@host :~/Downloads/test $ > dpkg -s zathura-pdf-mupdf | grep Status
Status: install ok installed

user@host :~/Downloads/test $ > zathura --version
zathura 0.4.3
girara 0.3.2 (runtime: 0.3.2)
(plugin) pdf-mupdf (0.3.4) (/usr/lib/x86_64-linux-gnu/zathura/libpdf-mupdf.so)

And downloaded an example .epub file "Alice in Wonderland" from here.

As you can see below, the file seems to be correctly recognized as an EPUB by my system (as listed here) :

user@host :~/Downloads/test $ > xdg-mime query filetype aliceDynamic.epub 
application/epub+zip

However, zathura looks like it doesn't recognize it as such, and is unable to read the file, even with the zathura-pdf-mupdf package :

user@host :~/Downloads/test $ > zathura aliceDynamic.epub 
error: Unknown file type: 'application/zip'

Do you know what could be the issue ?

System :

• Ubuntu 18.04

I'm taking the example of the so-called "Videos" packages while it is in fact called totem in usr/bin/totem.

But there are dozens of others, e.g. "Terminal" which is really called gnome-terminal, etc...

This is extremely misleading and, I'm sure, has made thousands of people lose hours because of this.

Where is this "name symbolic link" made, and is it possible to remove it ? If so, how ?