UbuntuHandbook

How to Install LXQt (1.4.0 Updated) in (L)Ubuntu 22.04 via PPA

Last updated: November 16, 2023

This simple tutorial shows how to install the latest LXQt desktop 1.4.0 in (L)Ubuntu 22.04 via its official PPA.

The light LXQt desktop environment released 1.4.0 for few weeks ago. While, LUbuntu 22.04 ships with 0.17 version by default, you can now upgrade to the latest through PPA.

Changes in LXQt 1.4.0 include:

use lxqt-menu-data to replace lxmenu-data anywhere needed.
The file manager now allow users to add terminal commands.
QTerminal supports audible bell as an option
Image viewer has a minimal support for color spaces now.
Add option to the custom command plugin for showing the output as an image.
Update the DBus activation environment
See more at the releases page.

Install LXQt 1.4.0 via PPA:

LUbuntu announced the official backports PPA last year, to provide the latest LXQt desktop stack. It now contains the new LXQt 1.4.0 packages for (L)Ubuntu 22.04 LTS.

1. Add LUbuntu backports PPA

Open terminal (Ctrl+Alt+T), and run the command below in terminal to add the official PPA instead:

sudo add-apt-repository ppa:lubuntu-dev/backports

2. Update LXQt Desktop:

Finally, use the command below to update LXQt to v1.4.0:

sudo apt full-upgrade

NOTE: apt full-upgrade is required rather than apt upgrade, or some core libraries will be kept back.

For non-LUbuntu but Ubuntu 22.04 based systems, user can use the command below to install LXQt 1.4.0:

sudo apt install lubuntu-desktop

In case you want to restore your system later, it’s better to written down what packages it’s going to install via terminal output

Uninstall LXQt 1.4.0 in LUbuntu 22.04

To restore your LUbuntu desktop, run the command below in terminal to install ppa-purge and use the tool to purge the PPA repository:

sudo apt install ppa-purge && sudo ppa-purge ppa:lubuntu-dev/backports

Finally, restart your system.

In Howtos LXQt

How to Install or Upgrade to LXQt 0.9 in Ubuntu 14.04/14.10

Last updated: February 8, 2015

LXQt 0.9, the lightweight desktop environment (merge between LXDE and Razor-qt), was released this Sunday. The new release drops Qt4 and now requires Qt5.

Besides enforcing Qt5, LXQt 0.9 comes a new LXQt Frost theme, lots of UI and internal polishing and several new features. See the official release note.

Install / Upgrade LXQt 0.9 in Ubuntu:

For (L)Ubuntu 14.04, (L)Ubuntu 14.10, and upcoming (L)Ubuntu 15.04 users, LXQt 0.9 has been made into PPA. Just follow below steps to install or upgrade it.

1. Open terminal from the Dash or by pressing Ctrl+Alt+T on keyboard. When it opens, run command to add lubuntu daily build PPA:

sudo add-apt-repository -y ppa:lubuntu-dev/lubuntu-daily

2. After that, update system package cache and install LXQt by running below two commands one by one:

sudo apt-get update

sudo apt-get install lxqt-metapackage lxqt-panel openbox

Once the installation finished, log out and log in back with “LXQt Desktop” session and enjoy!

In Howtos LXQt

LXQt 0.8.0 Released with Full Qt 5 Compatibility

Last updated: October 20, 2014

LXQt, the next generation of LXDE, has just reached release 0.8.0, which brings full Qt 5 compatibility, two beautiful new themes, and a lot of new features.

LXQt is the Qt port and the upcoming version of LXDE, the Lightweight Desktop Environment. It is the product of the merge between the LXDE-Qt and the Razor-qt projects.

According to the release note, LXQt 0.8.0 brings below changes:

Full Qt 5 support. Run cmake with -DUSE_QT5 to enable it.
New component: lxqt-admin. This brings an optional set of basic admin tools such as configuration for date & time as well as users and groups.
New theme: Plasma Next. Based on KDE Plasma Next theme.
New theme: Dark Alpha, by Inti Alonso.
Much improved support for multiple displays.
Support for RGBA transparency if compositing is available.
lxqt-config-randr has been removed. It has been replaced by lxqt-config-monitor.
pcmanfm-qt: Support single-click to activate items
pcmanfm-qt: Support drag & drop on the desktop
pcmanfm-qt: Implement integration with the ark archive manager
pcmanfm-qt: Improve readability in icon view
lxqt-panel: Support reordering of taskbar buttons
lxqt-panel: Support “urgency” hint
lxqt-panel: Add support for OSS in volume control, if available
lxqt-powermanagement: Improved compatibility with systemd/logind
Integrate with compton if available (disabled by default)
Add support for setting a default UI font
Lots of performances improvements.
Lots and lots of bugfixes.

How to install LXQt in Ubuntu:

A daily build PPA is available in ppa:lubuntu-dev/lubuntu-daily, so far it supports Ubuntu 14.10, Ubuntu 14.04 and derivatives.

Press Ctrl+Alt+T to open terminal and run below commands one by one to add the PPA and install LXQt session:

sudo add-apt-repository ppa:lubuntu-dev/lubuntu-daily

sudo apt-get update

sudo apt-get upgrade

sudo apt-get install lxqt-metapackage lxqt-session lxsession

Once installed, log out or restart. When you’re at the Unity Greeter choose log in with a LXQt session.

(Optional) To remove this Desktop Environment, run below command in terminal:

sudo apt-get remove lxqt-metapackage lxqt-session && sudo apt-get autoremove

In Howtos, News LXDE, LXQt

LXQt 0.7.0 (LXDE & Razor-Qt) Released, Install it in Ubuntu via PPA

Last updated: May 8, 2014

The first release of LXQt, the Qt port and the upcoming version of LXDE, has been announced a few hours ago. It is the product of the merge between the LXDE-Qt and the Razor-qt projects: A lightweight, modular, blazing-fast and user-friendly desktop environment.

The LXDE and Razor-qt teams are proud to announce LXQt 0.7.0, the first release of LXQt, the Qt Lightweight Desktop Environment. This beta release is considered a stable continuation of the Razor desktop.

It has been almost a year since the Razor-qt project and the LXDE-Qt project decided to merge. Since then, the LXQt desktop has been under active development by 13 developers and dozens of contributors and
translators.

Read the full announcement at sourceforge.net

Install LXQt session in Ubuntu:

For Ubuntu 14.04 and Ubuntu 13.10, press Ctrl+Alt+T on keyboard to open the terminal. When it opens, paste the commands below and run one by one:

sudo apt-get install software-properties-common

sudo add-apt-repository ppa:lubuntu-dev/lubuntu-daily 

sudo add-apt-repository ppa:gilir/q-project

sudo apt-get update

sudo apt-get upgrade

sudo apt-get install lxqt-metapackage

Once installed, log out current session and select log in with LXQt Desktop: