认识
LXQT（Lightweight Qt Desktop Environment）是 LXDE 的继任者，它在 LXDE 的基础上进行了升级和改进。
组成
LXQT 使用 Qt 框架作为其主要的开发工具，并且在外观和功能上与 LXDE 相似。
组成
概念术语
环境组件
Wikipedia/LXQT/Software components
LXQT 桌面环境通常包含如下组件（在某些环境中，部分部分组件并不存在）：
| Name | Dependencies (w/o Qt) | Comments |
|---|---|---|
| QTerminal | Use the command line, composed for and now part of LXQt | |
| Falkon | Web browser | |
| SDDM | Simple Desktop Display Manager composed for LXQt and in QML | |
| LXImage-Qt | Image viewer | |
| lxmenu-data | Files required for freedesktop.org desktop menus | |
| lxqt-about | About dialog | |
| lxqt-admin | System administration tool | |
| lxqt-archiver | File archiver | |
| lxqt-common | Common files (graphics files, themes, desktop entry files …) | |
| lxqt-globalkeys | Daemon and library for global keyboard shortcuts registration | |
| lxqt-notificationd | Notification daemon | |
| lxqt-openssh-askpass | openssh password prompt | |
| lxqt-policykit | Polkit authentication agent | |
| lxqt-qtplugin | Qt platform integration plugin (all Qt-based programs can adopt settings of LXQt) | |
| lxqt-runner | Application launcher | |
| lxqt-session | session manager | |
| lxqt-sudo | GUI frontend for sudo/su | |
| menu-cache | ||
| ObConf-Qt | Openbox configuration tool written in Qt | |
| compton-conf | GUI configuration tool for Compton X composite manager | |
| PCManFM-Qt | File manager, Qt port of PCManFM | |
| qt-gtk-engine | Theming GTK 3 programs with Qt styles | |
| ScreenGrab | Screenshot program | |
| lxqt-config | KScreen (RandR) | System settings center |
| pavucontrol-qt | PulseAudio | Volume manager for PulseAudio |
| lxqt-panel | Solid | Desktop panel (taskbar) |
| lxqt-powermanagement | Solid | Power management daemon |
compton-conf (metacity ⇒ xcompmgr ⇒ dcompmgr ⇒ Compton)[14]
性质
其保留 LXDE 的轻量级特性，但在性能和可定制性方面有所改善。
修改 Workspace 数量
How to add more workspaces in Lubuntu? – Ask Ubuntu
Click on the “Lubuntu” icon in the bottom of the screen;
Set Preferences>>Openbox Configuration Manager
On the new window opened, click on “Desktop” option;
On the field labeled “Number of desktops” you can choose how many workspaces do you need.
After all, just close the window.
蓝牙（Bluetooth）
LXQt/Lubuntu 19.10 has no bluetooth panel indicator – Ask Ubuntu
Bluetooth tray icon – Lubuntu Support – Lubuntu Discourse
apt-get install blueman
显示系统托盘图标：Right-Click Panel > Manage Widgets > Status Notifier
构建
通过现有系统镜像，来直接安装：
- Lubuntu – The official Lubuntu home | https://lubuntu.me/
通过软件仓库安装：
# on Debian 11 or Ubuntu 24.04 apt-get install task-lxqt-desktop # 0.16.0
应用
场景及方案
其适合于那些对性能要求较高的用户，尤其是在低端硬件环境下使用。使用资源少、基于组件的设计、操作简单、社区活跃；
改进
[WIP.] Failed to run “xdg-screensaver lock”
Failed to run “xdg-screensaver lock”. Ensure you have a locker/screensaver compatible with xdg-screensaver installed and running.
# 05/29/23 尝试 Session Settings ⇒ Autostart ⇒ disable XScreenSaver
# 05/30/23 经过测试使用，该问题暂时消失，但是还未经历过重启，不知道重启之后，是否能够正常运行。
参考
DeepSeek / 在 Ubuntu Desktop 中，安装 lxqt 的方法