How to fix a frozen KDE window manager

Restart the window manager with a command

1. To use Krunner to end a broken instance of the KDE Plasma 5 window manager, start by pressing Alt + F2 or Alt + Space on the keyboard. ...
2. Using your mouse, click on the launch box to get Plasma to focus on it. ...
3. Press Enter on the keyboard to execute the kill command.

1. How do I restart KDE window manager?
2. How do I reset my plasma KDE?
3. What window manager does KDE use?
4. How do I restart dolphin?
5. How do I start KDE from terminal?
6. How do I install KDE Plasma?
7. How do I check my KDE version?
8. How do I start KDE on Ubuntu?
9. What does a window manager do?
10. What are the basic window management functionalities?
11. How do I change windows managers?

How do I restart KDE window manager?

Restart KDE without rebooting the computer

1. Save and close all open applications.
2. Use the Ctrl-Alt-Backspace shortcut keys to restart KDE.
3. If Ctrl-Alt-Backspace is disabled, type sudo /etc/init.d/kdm restart.

How do I reset my plasma KDE?

I found that the best way to do it (in KDE 5 at least) is by using krunner (Alt+F2) to killall plasmashell then immediately afterwards, plasmashell .

What window manager does KDE use?

It is released as a part of KDE Plasma 5, for which it is the default window manager. KWin can also be used on its own or with other desktop environments.
...
KWin.

How do I restart dolphin?

The following commands and arguments can be used to reboot a Dolphin using command line:

1. To warm boot the Dolphin use: reboot /r.
2. To cold boot the Dolphin use: reboot /c.

How do I start KDE from terminal?

What we need to do is open the “trigger”. If there is already one line that defines “DESKTOP”, just change the value of it. Then we will start KDE when we run startx from console.

How do I install KDE Plasma?

How to Install the KDE Plasma Desktop on Ubuntu 18.04 LTS

1. Step1: Install Tasksel; a prerequisite for installing Kubuntu. The tasksel command line tool for Ubuntu helps you in installing multiple related packages as a collective task. ...
2. Step 2: Install Kubuntu Desktop. ...
3. Step 3: Restart your system to login to KDE Plasma.

How do I check my KDE version?

Open any KDE related program, like Dolphin, Kmail or even System Monitor, not a program like Chrome or Firefox. Then click on the Help option in the menu and then click on About KDE . That will tell your your version.

How do I start KDE on Ubuntu?

Here's how to install KDE on Ubuntu:

1. Open a terminal window.
2. Issue the command sudo apt-get install kubuntu-desktop.
3. Type your sudo password and hit Enter.
4. Accept any dependencies and allow the installation to complete.
5. Log out and log in, choosing your new KDE desktop.

What does a window manager do?

The job of a window manager is to handle how all of the windows created by various applications that share the screen and who gets user input at any given time. As part of the X Windows API, applications supply a size, position and stacking order for each window they create.

What are the basic window management functionalities?

A window manager is system software that controls the placement and appearance of windows within a windowing system in a graphical user interface. ... Many window managers also come with various utilities and features: e.g. docks, task bars, program launchers, desktop icons, and wallpaper.

How do I change windows managers?

The procedure to change the window manager is:

1. Choose a new window manager, say Mutter.
2. Install the new window manager. $ sudo apt-get install mutter.
3. Change window manager. If you just want to try out the window manager, then execute the following command in your desktop environment: $ mutter --replace &