KDE (K Desktop Environment) is a Qt-based desktop environment as well as a suite of cross-platform desktop applications. Its latest desktop environment is KDE Plasma 5.

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Installing KDE on Ubuntu 16.04 [duplicate]

I'm on Ubuntu 16.04 and I want to use plasma desktop sometimes. Trying to run apt install kubuntu-desktop generates this output: Some packages could not be installed. This may mean that you have ...
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74 views

Plasma 5.5.5 NetworkManagement Widget won't load the QML file

Hello I am using Kubuntu 16.04 using Plasma 5.5.5 and Qt version 5.5.1. I was running kernel 5.5.3 and upon upgrade to 5.5.4 the plasma widget for network management seemed to break. So I downgraded ...
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86 views

KDEConnect or similar under GNOME

I'm a KDE-User (Kubuntu, openSUSE, ArchLinux) since years. I pretty like GNOME and I'm thinking about switching over to GNOME - but every time I think about it I think: "Oh hey, wait a moment, you can'...
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37 views

Can I install the all the software included with Ubuntu Studio on Kubuntu without losing the KDE environment?

I am planning on installing Ubuntu on my new laptop, but I prefer the KDE Plasma 5 DE and I am likely going to use a lot of creation software like that which is included in Ubuntu Studio. I don't know ...
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1answer
164 views

Apt-get not working after attempting to install kde desktop [duplicate]

So, I tried to install the KDE Desktop in Ubuntu, but it failed (I couldn't grab output for here). Now whenever I try to use apt-get , it says that it fails, and to use sudo apt-get -f install . ...
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36 views

How to correctly install various desktop environments on Ubuntu?

I am currently running a regular vanilla Ubuntu installation with mostly standard settings (except for power management preferences and similar customisations). I know that different desktop ...
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2answers
63 views

mount img with dolphin

I'm running 16.04 and I am trying to mount a img file, but I have no option to do so. How can I add the ability to mount? Preferably something gui based and just either a context menu option, or ...
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22 views

KDE taking long time finish splash, possible screen issue

I have Kubuntu 16.04 installed on a Thinkpad T450s. Every time I log in without my second monitor connected, the splash takes a long break at the end, with the fan going like crazy. If I have the ...
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2answers
221 views

How to install additional languages in Kubuntu 16.04 LTS?

I need my system to be able to display the characters of Chinese, Japanese, and Right-To-Left languages like Arabic. At the moment, it is not able to display the characters of those languages (e.g. ...
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337 views

Slow startup of Plasma 5.5 in Kubuntu 16.04

My recent Notebook (Intel i3-6100 with SSD) boots from BIOS to the login of SDDM within 8s. After entering my credentials it takes 31s (no matter if I have autostart of Firefox and Thunderbird). While ...
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4answers
79 views

Best desktop enviroment for old PC [duplicate]

I don't know if this is the right place to ask this question, there may also be duplicates, I just want to ask: Which will be the best DE for: Pentium 4 3.6 GHz (2007), 1GB DDR2 RAM, Intel 915G ...
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2answers
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Plasma 5.6 on Kubuntu 16.04

Is there any way of running Plasma 5.6 on Kubuntu 16.04 without compiling it yourself? The Kubuntu Backports PPA isn't there yet (almost two bloody months after the release of Plasma 5.6) and Ridell'...
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1answer
89 views

Supreme error while updating to KDE on Ubuntu 16.04 [duplicate]

So here's the problem. I've deleted LibreOffice, and installed OpenOffice instead. All good there. Then, I've installed KDE Plasma. Looks like this guy has a thing for LibreOffice and KDE-TELEPATHY. ...
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1answer
29 views

Konsole hide tab bar

Is it possible to hide konsole tab bar? If so how. I've looked through the settings in the options panel for the profile, but nothing jumps out at me. Does a command line setting exist, or ...
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208 views

(K)Ubuntu 16.04 Plasma 5.5.5 takes long time at login

My new installed Kubuntu 16.04 with Plasma 5.5.5 takes very long time at login(~30s). I read about a similar bug https://bugs.launchpad.net/ubuntu/+source/plasma-nm/+bug/1509334 , but I don't think ...
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1answer
59 views

Turn off or disable the guest account in kUbuntu using KDE system settings GUI

How do I turn off or disable the guest account in kUbuntu using the KDE GUI?
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1answer
96 views

Plasma 5 Fonts Not Working

I recently upgraded to Ubuntu 16.04 and installed the kubuntu-desktop package in order to take advantage of KDE5. However, the fonts and similar visual systems are completely refusing to work, even ...
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26 views

How do i find all clipboards on ubuntu and kUbuntu

I posted the following security concern in the security.stackexchange: kde system tray clipboard Note: This post is asking a different question. In response to finding that when I use the program ...
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18 views

Why have I only two avtivities types on Plasma 5?

After installing kubuntu 16.04 I have only two activities types in Plasma: desktop and folder view. Why? Is something missing in the system?
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39 views

Where is the location of the keyboard input locale icons?

See the dark blue EN icon. The icon will change depending on the input you use and your keyboard config. I'd just like to know where these icons are located.
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1answer
5k views

Help installing kubuntu-desktop on Ubuntu 16.04

Well, the problem is that I'm trying to install KDE alongside Unity on Ubuntu 16.04. I'm using the command sudo apt-get install kubuntu-desktop* kdm* but I'm not sure if this is correct. If it isn't, ...
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39 views

How can I hide and protect devices in Dolphin (and other places in KDE)?

On most KDE file open dialogues and Dolphin, my devices (mounted and otherwise) are displayed as options. Clicking these convenient takes you to their mounted path (and mounts them first if they aren'...
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94 views

Wrong keyboard layouts

I want to be able to switch my keyboard layout between German and English (UK). As default I set it system-wide to English (UK, extended WinKeys), using sudo dpkg-reconfigure keyboard-configuration ...
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1answer
132 views

How to get an uniform look for Qt and GTK applications in xenial

Since I upgraded to xenial all the applications but the ones using Qt4 look uniform. For some reason the Qt4 applications like SpeedCrunch or Okular use the Plastique theme by default. The Plastique ...
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1answer
31 views

How to copy files from one directory to another after closing the Dolphin file manager in Kubuntu 16.04 LTS?

Please, I need your help with the following: The Problem: I can't copy/move one file (or more) from one directory to another unless if both directories are opened using the file manager. In other ...
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56 views

kwallet + gpg kubntu

I've installed kubuntu 16.04 and create gpg key. But when I try to create a new wallet with kwallet it can't find no one encryption key. I tried to create pair of keys with gpg and kgpg, in both cases ...
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139 views

Visual changes of the applications with root in Kubuntu 15.10/16.04

The problem is: when I start apps in Kubuntu with sudo or kdesudo, these apps change their visual themes and some of them are displayed with issues. As an example: Dolphin in normal mode: Dolphin ...
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1answer
29 views

KDM accepting username and password but doesn't load desktop

I installed kde with sudo apt-get install kde-full on my ubuntu 14.04 desktop, then I got a warning about running out of space (I can't remember it exactly) and kde was still installing so I killed ...
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1answer
123 views

Alternative for the 'system settings' application?

Is there a "good" alternative application for the system settings application that comes with Ubuntu? I mean I know that KDE and gnome come with their alternatives, but I would like to have one ...
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73 views

Will installing kdeconnect-plasma in 16.04 come in conflict with an existing installation of kdeconnect?

Currently on Ubuntu 14.04 I installed kdeconnect 0.8 from a ppa, because 14.04 only has the 0.7 release packaged (https://launchpad.net/ubuntu/+source/kdeconnect). After upgrading to Ubuntu 16.04 I'd ...
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1answer
637 views

How to move, resize or remove KDE widgets since Plasma 5.5.5 (xenial) [duplicate]

Until Plasma 5.4.2 (wily) widgets could be unlocked and showed a side menu when hovering over them with the mouse. The side menu allowed moving, resizing and removing the widget. With Plasma 5.5.5 (...
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465 views

How to resize a Folder View widget on the desktop?

It's surely my fault, but I am not able to resize the folder view widgets I've put on the desktop. In the previous release (14.04, KDE 4) the folder view widgets all had auto-appearing hanldes for ...
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1answer
659 views

Kubuntu shows black screen after upgrading to 16.04

I upgraded my Kubuntu 15.10 machine to 16.04 yesterday. Everything was working fine. Today, I did a reboot. Upon logging in, my desktop doesn't show so I have a blank black screen. Thankfully, Plank ...
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94 views

Installing KDE in Ubuntu GNOME 15.10

I'm trying to install KDE on Ubuntu GNOME 15.10, but I cannot get it to work. I'm trying to install it through the command line, using sudo apt-get install kubuntu-desktop but it doesn't work. It ...
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11 views

Black stripes in screen

I have a problem with my raspberry pi 2B, when I hooked it up with a hdmi to dvi converter to a DVI screen it worked flawlessly for about 2 and a half hours, since then I have been randomly gettings ...
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64 views

Plasma device notifier failing to start (kdeinit/kioexec)

When I plug in a USB storage device, I try to double-click it in the device notifier that comes up in my tray, but all I get is messages like: Examining: Finished // mtp:// blah blah blah /ALCATEL ...
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73 views

Kubuntu 15.10 - Session save doesn't work

This machine was originally installed with Kubuntu 14.10. Then I upgraded to 15.04, and since then it fails to properly restore my previous session. I recently upgraded to Kubuntu 15.10, hoping to fix ...
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143 views

I can't download new Plasma widgets and Plasma themes in Kubuntu 16.04 LTS

Each time I try to download the new Plasma widget from the Plasma Add-On Installer, I get the following error: Loading of providers from file: http://download.kde.org/ocs/providers.xml failed ...
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1answer
42 views

How to fix the problem of drop-down menus being transparent and not readable in Kubuntu 15.10

The Problem: The task manager dropdown menus are all transparent and not readable at all. The same goes for all the dropdown menus of libre office. I have tried to change the desktop theme but the ...
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2answers
215 views

How to deactivate all the desktop effects of KDE permanently?

I am aware that the shortcode of "Shift + Alt + F12" disables all the desktop effects of Kubuntu 15.10. However, is there a way to disable all those effects automatically and permanently in every ...
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1answer
28 views

Power management dies after suspend in Kubuntu 15.10

Ever since I upgraded to Kubuntu 15.10 from 14.10 power management dies after waking up from suspend (to disk or ram). The only thing that still works is dim display but it won't even un-dim. Screen ...
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7 views

Graphical effect disappeared on kde4

Afternoon I had to reinstall xorg for some problems with the nvidia driver. Now all the effects are enabled (for example flickering windows) but do not work. and now all without as animations .. do I ...
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1answer
17 views

Accidentally killed plasma

I accidentally pressed ctrl + alt + esc, clicking on the process in the task manager, but it didnt work, and it selected the whole plasma desktop and got killed, is there a quick fix to start up ...
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30 views

KDE + VNC under Amazon EC2?

Starting with a 14.04LTS AMI, what are the magic incantations to get a remote desktop, preferably KDE? I tried the obvious: apt-get install kubuntu-desktop apt-get install tightvncserver ...
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2answers
134 views

KDE 5 - How to easily switch between audio outputs?

I currently have KDE 5 Plasma installed which I like a lot. However, it is not possible to easily switch between Audio outputs from One Soundcard (SPDIF and analog) like it was possible in Unity. Is ...
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39 views

Audio mute button not working in KDE Plasma 5 Kubuntu 15.10

How do I get the audio mute button on my keyboard to work on Kubuntu 15.10? I read somewhere that changing global shortcuts for KMix in Global shortcut settings would work, but I couldn't find KMix in ...
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34 views

Akonadi/ Kmail is broken cannot get my POP3 messages/ accounts

Today kmail stopped working and I get the following while running akonadictl start: Starting Akonadi Server... Unable to register service as "org.freedesktop.Akonadi.Control.lock" Maybe it's already ...
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1answer
84 views

Screen Goes Blank After Boot

Once I start my computer Ubuntu starts to boot by showing the splash screen. Then once the splash screen goes away the login screen appears, but then quickly goes blank. I uploaded a YouTube video ...
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23 views

Firefox opens downloaded files with default app for Gnome instead of KDE which I am running

I am running Kubuntu 15.10 with KDE Plasma5. While I am running Firefox and open a file downloaded from there, it opens using the default application set in Gnome and not the ones configured for KDE....
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130 views

Help understanding and debugging slow boot with systemd network-online.target

I've spent some time on google, but I don't want a quick fix here, I want to understand what is going on. I have a desktop which boots to Windows in 3 seconds, and booted older ubuntu's in under 10, ...