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Bug#808545: marked as done (The package manager does not report installing a desktop environment as a dependency)

Your message dated Sun, 20 Dec 2015 22:38:27 +0100
with message-id <20151220223439.GA25903@debian.org>
and subject line Re: Bug#808545: The package manager does not report installing a desktop environment as a dependency
has caused the Debian Bug report #808545,
regarding The package manager does not report installing a desktop environment as a dependency
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
808545: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=808545
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--- Begin Message --- 
Package: apt
Version: 10.0.10.2
Severity: normal
Tags: upstream

As reported in (https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1528028).
The average user cannot tell when they are installing a desktop environment as a dependency of a package.
Having various desktop environments can reduce system performance sensibly, as processes from various desktops are running simultaneously in the background. Moreover the autoremove tool cannot always identify the dependencies when removing some of those installed packages.
For example if I install the "cortina" package, it takes with it the GNOME Display Manager and plenty of wallpapers. Then if I uninstall it and do "sudo apt-get autoremove" those packages are not detected as unused.
Another example: if I install the "rkward" package plenty of KDE services, like the Akonadi indexing service, are installed. Then launching applications in my Inter Core 2 Quad becomes noticeably slower, because my system is running both GNOME and KDE services simultaneously.
If I remove rkward and then I perform an autoremove, the system still stays slow. If I uninstall all the packages in the universe repository, perform an autoremove, and then reinstall the applications I had, the system becomes fast again. 

The user shall know these potential problems beforehand.

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--- Begin Message --- 
On Sun, Dec 20, 2015 at 07:30:56PM +0100, Alberto Salvia Novella wrote:
> Package: apt
> Version: 10.0.10.2
> Severity: normal
> Tags: upstream
> 
> As reported in (https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1528028).
> 
> The average user cannot tell when they are installing a desktop environment
> as a dependency of a package.

The user is not installing a desktop environment as a dependency of a package,
only parts of it. The user sees that there is a long list of packages to be
installed and can either continue or not.

> 
> Having various desktop environments can reduce system performance sensibly,
> as processes from various desktops are running simultaneously in the
> background. Moreover the autoremove tool cannot always identify the
> dependencies when removing some of those installed packages.

It just happens that some of the newly installed dependencies are also
Suggested by other installed packages, and thus are not removed, because
you might have installed the package in order to extend the functionality
of another installed package suggesting it.

> 
> For example if I install the "cortina" package, it takes with it the GNOME
> Display Manager and plenty of wallpapers. Then if I uninstall it and do
> "sudo apt-get autoremove" those packages are not detected as unused.

It says:
"Desktop wallpaper management application for GNOME"

you would expect that.


> 
> Another example: if I install the "rkward" package plenty of KDE services,
> like the Akonadi indexing service, are installed. Then launching
> applications in my Inter Core 2 Quad becomes noticeably slower, because my
> system is running both GNOME and KDE services simultaneously.

Yes they do, because they are needed.

> 
> If I remove rkward and then I perform an autoremove, the system still stays
> slow. If I uninstall all the packages in the universe repository, perform an
> autoremove, and then reinstall the applications I had, the system becomes
> fast again.
> 
> The user shall know these potential problems beforehand.

The user does know. There's a long list of packages.

-- 
Julian Andres Klode  - Debian Developer, Ubuntu Member

See http://wiki.debian.org/JulianAndresKlode and http://jak-linux.org/.

When replying, only quote what is necessary, and write each reply
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