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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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
168 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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87 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
1k 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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1answer
621 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
783 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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104 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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14 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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77 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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100 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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191 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
48 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
339 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
29 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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44 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
201 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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50 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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40 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
92 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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1answer
171 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, ...
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35 views

Change font size of all BasKet notes at once

I would like to know how to change the font size of ALL BasKet notes at once. Selecting all notes in one basket makes the font toolbar grayed out, so this does not work.
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1answer
173 views

Installing Unity alongside kde

I am running kubuntu 15.10 32-bit for a while, and although I love the kde enviroment, I would like the option of having unity. So, I did the following: sudo apt-get update sudo apt-get ...
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1answer
90 views

KDE login/logout issues in Kubuntu 15.10

I'm running a fresh Kubuntu installation on a new computer. Everything runs smooth except logging in and out of KDE. The problem could be divided into two parts: About 40% of the time, KDE won't ...
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18 views

KDE Login screen for 2 monitor

I'm wondering if is possible to remove one of the login screens under Kubuntu 15.10, I'm working with kubuntu and 2 monitors, and each time when I start my PC both monitor are showing the login window ...
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1answer
33 views

A shortcut to present all windows and jump to one of them with a key

Is there a feature that present the "present all windows" screen or something similar and puts letters on the windows like 'alt' does for menu so you can jump to the desired window with just the ...
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167 views

KDE Plasma can't install. Help me

When try to install KDE Plasma (Kubuntu Desktop) on Ubuntu 15.10 using sudo apt-get install kubuntu-desktop Then this error comming, Reading package lists... Done Building dependency tree ...
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1answer
30 views

Backup of Akonadi: What makes sense?

At https://wiki.ubuntuusers.de/Datensicherung/#4-was-zu-sichern-sich-nicht-lohnt (in German unfortunately) it says that it does not pay off to backup ~/.local/share/akonadi. Why is that? What should I ...
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1answer
49 views

Black screen with movable mouse in Kubuntu 15.10 KDE - How do i fix it?

I accidentally moved my unstable power coord connected to my monitor (It gets disconnected easily) and couldnt get the power coord to fit in rightly, so i had to force restart my computer (cause i ...
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1answer
35 views

How to deal with forgotten password without loosing any data from ubuntu based laptop? [duplicate]

When I logged in today on my laptop and tried to do something it asked me for my password. So i typed in my password and it keeps on saying that It's invalid. I know for sure I didn't change it. Is ...
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14 views

KDE Window Preview font breaks after a while

I am running Kubuntu 15.10 with KDE 5.4.2 and after running for some time, the font in the little preview window that appears when hovering the mouse over the taskbar starts to break with certain ...
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262 views

How do I get firefox do use the numix theme again?

I normally use Ubuntu 15.10 with the numix theme, the typical black style with red menus along with circle icons. I recently tried kde plasma(because for whatever reason it was installed on my system),...
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150 views

Help Getting KDE to work

Basically I've used many flavors of Linux over the years, I just got a System 76 with the default Ubuntu installed on it. I've been a fan of KDE and Debian for many years now, so this distro isn't ...
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1answer
101 views

KDE color scheme is not applying

I installed kubuntu-desktop and color themes are not working. When I change for example from Breeze to Breeze Dark in Color section in the settings nothing except title bar color seems to change. ...
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47 views

Can't click on anything on my Kubuntu 15.04

I have a problem with Kubuntu 15.04. I am not able to click on anything in control panel. Sometimes the whole KDE just freezes so I can't click on anything. Could someone please help to find a ...
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42 views

KWin crashes when connected on VNC

Whenever I connect to my KDE 5 desktop served by TightVNC on Kubuntu 15.10, KWin (in the viewer) crashes and I am left with a grey desktop unable to do anything. KWin crashes only on VNC. The ...
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301 views

Start KDE 5 through VNC

I am trying to setup TightVNC so that I can access my KDE Plasma 5 desktop remotely. Problem is, I don't know what to put in the ~/.vnc/xstartup file to start KDE.
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2answers
46 views

Minecraft confusion?

So I bought mine craft and I looked on you tube found how to do it and did it only there was a problem. I ran the launcher hit play and then it pops up the launcher again and says: something about ...
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143 views

Enable 256 colors in Konsole (Kubuntu)

I would like to enable 256 colors in Konsole but I didn't get it working the right way. I have set in my enviroment: TERM=xterm-256color $ tput colors 256 But the colortest of base16 always prints ...
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1answer
22 views

Kate forces itself to be the default application for HTML

In the last few days, Kate took over opening HTML links and files. I want to get it back to Firefox, so I opened System Settings, went into Applications -> File Associations, found the text/html ...
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23 views

gtk-recordmydesktop locks KDE taskbar so I can't stop recording

As far as I know the way you stop recording using gtk-recordmydesktop is to click the icon in the taskbar. My KDE 5.5.5 taskbar auto-hides, because I really don't use it all that often. If I'm ...
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55 views

kde 15.10 with nvidia propriety drivers = CRASH

I have a laptop with the nvidia gm107m/gtx960m chipset. For KDE there is no gui: plasma crashes each and every time at login. It complaints about some error when trying to use OpenGL 2. Have ...
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0answers
29 views

How to setup shortcuts to launch or switch application in kde5?

Such as in Unity, cmd+[number] would launch an application or switch to it if it is already launched? Currently I know how to setup new shortcut to launch an application in system settings. But I do ...
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265 views

how do I install new themes on Kubuntu 15.10?

I've been for ways on how to install themes on Kubuntu 15.10 but I cannot find any guide/example on how to do it. I found old discussion where it says I need to copy the theme /usr/share/plasma/look-...
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42 views

Are there any automatic time trackers for KDE desktop activities?

I'm using KDE activities for my few tasks. And I have to track time for each of them. Is there any time tracker software for KDE which can automatically track time for different activities while I'm ...
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17 views

Unable to start programs in Kubuntu 14.04 except for Firefox

My Kubuntu 14.04 system is in a strange state. The desktop and its icons display normally, but clicking on an icon does not start the associated program -- with the one peculiar exception of Firefox. ...
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133 views

KDEInit could not launch “/usr/bin/konsole” kubuntu 15.10

I've been a *buntu user for some years but remain somewhat of a novice with code and terminal. I'm running Kubuntu 15.10 and have recently noticed the following issues after attempting to install ...
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16 views

Unable to enable KHotKeys in Kde Plasma

I have installed Kde Plasma 5.4 along with the Unity. Now I am unable to open terminal using shortcut keys. When I checked the custom settings, all my shortcuts are disabled by default. please help