Question: ```
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 fglrx-driver : Depends: libfglrx (= 1:14.4.2-1kali1) but it is not going to be installed
 gmail-notify : Depends: python-eggtrayicon but it is not going to be installed
 libgl1-fglrx-glx : Depends: libfglrx (= 1:14.4.2-1kali1) but it is not going to be installed
 libgl1-fglrx-glx:i386 : Depends: libfglrx:i386 (= 1:14.4.2-1kali1) but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

```

I don't want to install these packages anymore (they are not compatible with my graphics unit). And so I do not need to install their dependencies using `apt-get -f install` (as it is suggesting).

What is the way to get rid of these packages and this unmet dependency problem? (I tried `apt-get autoclean && apt-get autoremove`).

Answer: 
The best way to remove such unmet dependencies that you do not want to satisfy is to use: 

`apt-get purge`

Purge ensures that any configuration files in relation to the package are deleted as well. In short, purge would remove *anything* in relation to the package--and you would be rid of the unmet dependency problem.
At first sight, I would say that the packages are installed.

So if you don't want them anymore, just remove them:

```
apt-get remove fglrx-driver gmail-notify libgl1-fglrx-glx libgl1-fglrx-glx:i386

```

(Maybe with a `-f` flag to pass the dependency check.)