Linux: The Ultimate Guide

Features
• Full support for GVfs with seamless access to remote file systems
• Twin panel

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LXDE Desktop Environment 
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• Thumbnail images
• Desktop Management – displays a background image and desktop
• Bookmarks
• Many languages
• Browsing tabs (such as Firefox)
• Volume management such as mount/unload/unload, requires gvf
• Drag and drop support
• Files can be dragged between tabs
• File organization (Default application)
• Provides the following views: thumbnail, merge, detailed list, thumb-
nail, and left-sided scrub
Desktop Panel (razor-panel)
Razor-qt is a free and open desktop environment for open source. It 
was intended as a lightweight desktop space based on the Qt application 
framework, and was “designed for users who appreciate simplicity, speed, 
and a clear visual interface.” The development of Razor-qt is interrupted, 
as it is integrated with the LXDE Qt port to make LXQt.
Razor-qt was still in its early stages of development. As of February 
2012, the environment included panel and switch viewer, desktop, app 
launcher, settings center, and sessions. These components may be enabled 
or disabled by the user.
Razor-qt can be used with any modern X window manager such as 
Openbox, fvwm2, or KWin. Razor-qt memory usage was slightly higher 
than LXDE, using 114 MiB in the reviewer test, while LXDE used 108 
MiB.
Merge with LXDE
After LXDE developer Hong Jen Yee sent PCManFM to Qt in early 2013. 
Yee and other interested developers negotiated a possible partnership with 
Razor-qt, another open desktop platform with similar software design 
principles. The first release of the new product, LXQt v0.7.0, was made 
public on May 7, 2014. The final release of razor-qt was on January 12, 
2013.

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Linux 
Session Manager (LXSession)
LXSession is a standard session manager used by LXDE. LXSession 
automatically starts a set of applications and sets up an active desktop. 
Additionally, it does not work on a desktop and can be used by any win-
dow manager.
Merge Flags
• “--open-man”: Produces personal pages.
• “--enable-more-warnings”: Enables alert for additional integration 
during construction.
• “--enable-gtk3”: Includes GTK3 when partially compatible 
(incomplete).
• “--enable-buildin-clipboard”: Add built-in clipboard support, using 
GTK2.
• “--enable-buildin-polkit”: Add building support within the polkit 
agent (based on GTK).
• “--enable-debug”: Allows for debugging.
• “--enable-gtk”: Allows GTK + applications and integration. It can 
pass --disable-gtk build without any component of GTK +.
Applications and Binary
1. Lxclipboard: An application to allow clipboard support using GTK
2. lxlock: Screen lock application, using external applications
3. Lxpolkit: Polkit agent
4. Lxsession-default: Wrap in Dbus mode to launch applications 
described in the lxsession configuration file
5. Lxsession-default-apps: A lxsession configuration application (espe-
cially for debugging purposes)
6. lxsession-edit: An old lxsession configuration application
7. Lxsession-utils: Mixed resources for lxsession

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LXDE Desktop Environment 
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8. lxsettings-daemon: Xsettings daemon
Policykit Agent (razorqt-policykit)
Razor-qt is an advanced, easy-to-use, and fast desktop environment based 
on Qt technology. It is designed for users who appreciate simplicity, speed, 
and an accurate visual interface. Unlike most desktop environments, the 
Razor-qt also works well with less powerful machines.
Display Manager (sddm or Lightdm+razorqt-lightdm-greeter)
SDDM is the default display manager that appears when you first log 
into Lubuntu or exit or select another session. Simple Desktop Display 
Manager (SDDM) is the display manager (image entry program and ses-
sion manager) for X11 and Wayland window systems. SDDM was writ-
ten from scratch in C ++ 11 and supported themes with QML. SDDM 
is a free and open-source software subject to GNU General Public 
License version 2 or later. LXQt developers recommend SDDM as dis-
play manager.
Features
• Supports different display technologies (X11 and Wayland using 
Mir)
• Supports remote login (incoming – XDMCP, VNC, outgoing – 
XDMCP, connected)
• Comprehensive test suite
• Compliance standards (PAM, login, etc.)
• It has well-defined interface between the server and the user interface
• Cross-desktop (greeters can be written in any tool kit)
• A well-defined greeting API that allows multiple GUIs
• Support for all conditions of use of manager-display, and plug-in 
where appropriate
• LightDM has a simpler code base than GDM and does not load any 
GNOME libraries to operate, but at the expense of other features the 
user may or may not need them.

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Linux 
COMPONENTS OF LXDE SOFTWARE
Unlike other large desktop areas like GNOME, LXDE components have 
fewer dependencies and are not tightly integrated. Instead, they can be 
installed independently or in LXDE itself.