[debian-edu-commits] [Debian Wiki] Update of "DebianEdu/Documentation/Stretch/HowTo/Desktop" by HolgerLevsen

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The "DebianEdu/Documentation/Stretch/HowTo/Desktop" page has been changed by HolgerLevsen:
https://wiki.debian.org/DebianEdu/Documentation/Stretch/HowTo/Desktop

Comment:
start documentation for Stretch copying from Jessie pages

New page:
= HowTos for the desktop =
<<TableOfContents(2)>>

== Modifying the KDM login screen ==

Customisations to the KDM login screen are made by adding a file in {{{/etc/default/kdm.d/}}} specifying variables to override the default.

Here is one example used to activate the theme in the {{{desktop-base}}} package:

{{{
USETHEME="true"
THEME="/usr/share/apps/kdm/themes/debian-moreblue"
}}}
See the code in {{{/etc/init.d/kdm}}} for information on how these variables are used.

== Using KDE "Plasma", GNOME, LXDE, Xfce and/or MATE together ==

To install other desktop environments after installation, simply use apt-get:
{{{
 apt-get install gnome lxde xfce4 mate-desktop
}}}

Users will then be able to choose any of the five desktop environment via the login manager before logging in. Of course, you can also choose to give less choices.

The usage of LXDE as default on thin clients can be forced; see  [[DebianEdu/Documentation/Stretch/HowTo/NetworkClients|networked clients]] for details.

If you don't want to do installations with the default desktop KDE "Plasma", you can also [[../../Installation#The_installation_process|install with one of the four alternative desktops, GNOME, LXDE, Xfce or MATE]] directly. 


== Flash ==

While the free software flash-player {{{gnash}}} is ''not'' installed by default anymore, as it has been removed from Jessie, installing a non-free flash player is still an option. Please note that upgrading is special in this case.

To install the (non-free) Adobe Flash Player web browser plugin, install the {{{flashplugin-nonfree}}} Debian package from {{{contrib}}}. This requires {{{contrib}}} enabled in {{{/etc/apt/sources.list}}}. Use {{{update-flashplugin-nonfree --status}}} to check for a newer version and {{{update-flashplugin-nonfree --install}}} to install it.

The solution for Chromium is similar, it needs the package {{{pepperflashplugin-nonfree}}} (also from {{{contrib}}}) to be installed, which will install the (non-free) Adobe Flash Player web browser plugin. Use {{{update-pepperflashplugin-nonfree --status}}} to check for a newer version and {{{update-pepperflashplugin-nonfree --install}}} to install it. 

Please note that the {{{pepperflashplugin-nonfree}}} package implements a more recent version of the Flash specification than does the {{{flashplugin-nonfree}}}, however.

== Playing DVDs ==

FIXME: this has changed in 2016… Debian can+does now distribute libdvdcss…

libdvdcss is needed for playing most commercial DVDs. For legal reasons it's not included in Debian (Edu).  If you are legally allowed to use it, you can use the packages from deb-multimedia.org. Add the multimedia repository (as described in the following section) and install the required libraries:

{{{
apt-get install libdvdcss2 w32codecs
}}}
== Using the multimedia repository ==
To use www.deb-multimedia.org do the following:

{{{
# install the debian-keyring securely:
apt-get install debian-keyring
# fetch the deb-multimedia key insecurely:
gpg --keyserver pgpkeys.pca.dfn.de --recv-keys 1F41B907
# check securely if the key is correct and add it to the keyring used by APT if it is:
gpg --keyring /usr/share/keyrings/debian-keyring.gpg --check-sigs 1F41B907 && gpg --export 1F41B907 | apt-key add -
# add repository to sources.list - please check the homepages for mirrors!
echo "deb http://deb-multimedia.org jessie main" >> /etc/apt/sources.list
# update the list of available packages:
apt-get update
}}}

== Handwriting fonts ==

The package {{{fonts-linex}}} (which is installed by default) installs the font "Abecedario" which is a nice handwriting font for kids.
The font has several forms to be used with kids: dotted, and with lines.


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