The official Ubuntu derivative using the KDE Plasma Desktop

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318 views

Bumblebee not switching card off

I am running Kubuntu 14.04.2 x86-64 on a ASUS Q551L. I have a Nvidia GeForce 840m that I am running the 352 driver from Nvidia. I am using bumblebee to switch between the two graphics cards. I can use ...
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158 views

LibreOffice menu items: missing icons and highlight

Some menu items are missing the icon, but instead a rough checkbox-like style icon is displayed. Menu items are not highlighted when mouse is over. The same for some contextual menus. This is ...
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28 views

Ubuntu and Ethernet problems?

I'm using Kubuntu 15.04 on an HP Pavilion dv3-2003tu. Recently I switched my hard drive to a new one that still contains Kubuntu and what I'm wondering is why Kubuntu can't connect to my ethernet ...
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48 views

Unlocking at boot time Luks LVM

This is my first question, but let me start by saying how much of a big fan I am up this site. Every question I ever had over the last 4 years has been answered here and I am so grateful for the help ...
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25 views

Kubuntu 15.04 installation hanged

trying to install kubuntu 15.04 x64 on one of my laptops, after choosing disk space and time zone, the continue button is blocked. I looked everywhere, it's been like this for 20 minutes, there is no ...
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59 views

How to upgrade to KDE 4.14

I am running KDE on top of Ubuntu 14.04LTS. The KDE version is 4.13.3 . I want to update it to 4.14 . I added the Kubuntu Backport PPA and did. sudo add-apt-repository ppa:kubuntu-ppa/backports sudo ...
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137 views

kubuntu 15.04 no sound - nvidia 970

My issue is very similar to this item: Xubuntu 15.04, no sound through HDMI but a bit different. Using a pair of nvidia 970 with an asrock exctreme6 MB. Sound output through display port to ...
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16 views

Audio Switching to Mono after a while

I'm running kubuntu 15.04 - for a few days now, the audio swithches to mono after 48h or so after a reboot. A reboot fixes the issue. Using pavucontrol, output devices, headphones (actually ...
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56 views

Applications unreliably gaining focus on mouse click in Kubuntu 15.04

I recently upgraded to Kunbutu 15.04 and am having a problem where windows are not reliably gaining focus when I click on them. For instance, when switching to using PyDev, I often need to click ...
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145 views

Kubuntu freezing on startup logo

I chose recovery option in Grub and it gets far enough that I can drop down to terminal and move around. I can't get the desktop to load no matter what I do. I've tried to edit xorg.config and it ...
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62 views

Really slow ssd performance

So I installed Kubuntu 15.04 on a samsung 840 evo ssd, the system works fine but I did a test to see the speed of the ssd. hdparm -t /dev/sdb gives me about 30MB/s, when it is supposed to give me ...
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40 views

How to enable Multimedia keys with Clementine in Kubuntu 14.04

I have a desktop computer with Kubuntu 14.04.2 installed. Multimedia keys work fine with Amarok and VLC, but not in Clementine. I did go to the Celmentine preferences and set the MMkeys to the ...
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88 views

kubuntu 15.04 lagging problem along with more power consumption

I have installed Kubuntu 15.04 on my dell inspiron 5520 (64 bit) . But when every time I open facebook in Firefox or Chromium after some time my laptop is not responding for 20 to 24 minutes.Also ...
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23 views

Deleted files still show in KDE5 launcher in Kubuntu 15.04

I am having some trouble. I deleted some files, but it still shows up when I search it in the KDE5 launcher in Kubuntu 15.04. How can I fix this?
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48 views

Encrypted LVM Disk Password not “in box”

After a recent installation of Kubuntu 15.04 using encrypted LVM, I have the following problem. When I boot the system, the pretty Kubuntu encrypted disk password screen appears, but when I type the ...
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130 views

Disable desktop switching with the scroll wheel in Kubuntu?

Just want to turn off the function when I scroll I swap desktop. I have removed the function in Desktop(right click) > Folder Settings > Mouse Actions > Vertical-Scroll > Switch Desktop ...
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157 views

Customize Kubuntu task bar

I just installed Kubuntu 15.04 the first time here. I don't know the correct name of Kubuntu's "Task bar" but there is something about it that drives me nuts. I moved the Task Bar to the left of my ...
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28 views

Kmail2 in Kubuntu Plasma 2 slows down with the receipt of new emails

I am using Kubuntu 15.04 and using Kmail2 as my default email client. Recently I found that while accessing my new mails in the inbox most of the times in the message window it shows 'Retrieving ...
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233 views

How do I install Plasma Desktop on Ubuntu 15.04?

Anyone can show me how to install Plasma Desktop on Ubuntu 15.04, I've tried one method and it works for a moment, but after few minutes I have obtain errors in Unity and in Plasma and more that.. In ...
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316 views

trouble while installing kubuntu 15.04 with wubi installer on windows 7

![enter image description here][1]Hello , I am trying to in install kubuntu 15.04 with wubi installer, but it started downloading UBUNTU-14.1-Desktop-amd64.iso.torrent, nd taking time approximately 7 ...
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47 views

Kubuntu 15.04: how to quickly test QML file changes in a plasma panel widget?

I am making changes to the QML files in ~/.local/share/plasma/plasmoids/org.kde.plasma.digitalclock/. What is a quick way of testing my changes? Currently, I have to re-add the widget to the panel ...
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1k views

Kubuntu 15.04: bluedevil installed and working, but Bluetooth icons missing from System Settings and system tray

When I manually launch bluedevil-monolithic, the system tray icon appears and works well to configure and connect to bluetooth devices. However, the bluetooth icon does not appear in the system tray ...
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47 views

virt-manager not saving connections

The Virtual Machine Manager (virt-manager) doesn't save the remote connections. I remove the local connection and add my remote connections and close the application and reopen it and the remote ...
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98 views

Recovering unity desktop after installing gnome3

I was using Ubuntu 14.04 . I wished to have multiple desktop environment. so for installing KDE is tried sudo apt-get update sudo apt-get install kubuntu-desktop so this worked and I was having ...
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20 views

How to set default behavior for which desktop apps launch on?

I'm running Kubuntu 14.04, and have 4 virtual desktops configured. Right now, when I launch an application, it automatically launches on all desktops. I want to set the default behavior to be when I ...
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72 views

Laptop has two screens according to settings. How do I fix this?

Okay, I have just installed Kubuntu 15.04 on my Acer Aspire 5742G (with a nvidia GT540m card). I have an issue with the screen of the laptop. When I tried to open some applications (e.g. settings) ...
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698 views

Kubuntu copy paste between desktop and kodi

I installed Kubuntu 14.04.2 kernel 3.19.6. I sometimes need to work out of the desktop mode. There i would like to copy text from the browser. Open Kodi (from the desktop mode, not log out), and ...
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346 views

Plasma 5.3 segfaults on monitor restart

I have an Intel NUC connected to my TV via HDMI. The NUC runs 24/7, power saving features such as "turn off monitor" are all disabled. The system works great, I am really pleased with it. However... ...
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263 views

Sticky mouse after update to Kubuntu 15.04

After updating to Kubuntu 15.04 I run into a few problems (so far it's the worst Kubuntu experience I had in many years. And for the first time ever I even had to set up my system from scratch after ...
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233 views

Installing Ubuntu 14.4 from USB

I have Ubuntu 12.4 installed on my laptop and Kubuntu 15.4 but now i decided to install Ubuntu 14.4 and erase the previous two. I downloaded Ubuntu 14.4 installation and i made a boot able USB using ...
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85 views

Fresh installation Kubuntu 14.04 LTS X86 Hangs at boot(Dell Dimension 8300 Desktop)

Recently I was installed Kubuntu 14.04 LTS X86 version on my Dell Dimension 8300 Desktop Computer. Installation went just fine, but at first boot it seems to hang at grub. At grub, It hangs and I'm ...
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820 views

Graphics corrupt after KDE 5 install

Ubuntu version: 15.04 System: 64-bit Intel Graphics: AMD Radeon HD 7900 Knowledge: moderate Hi, I've been happily using 15.04 for a few months, until a week ago I decided to install KDE Plasma 5 ...
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146 views

Invisible text in Inbox by Gmail in Firefox on Kubuntu

I'm using Firefox 38 on Kubuntu 14.04.2. Google's new "Inbox by Gmail" site works correctly with Chrome on this platform, and works correctly with Firefox on a Windows 7 platform. However, on ...
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106 views

How to connect with a Kubuntu shared wifi in Kubuntu?

After a long time using Kubuntu efficiently and happily i come to you with a little frustration. The setup is the following: Internet- LAN (laptop 1) tethered wifi connection by laptop 1 (Kubuntu) ...
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132 views

Kubuntu installation doesn't detect my windows 7 partition

My problem is that Kubuntu 15.04 doesn't detect my Windows 7 partition. My BIOS mode is set to legacy. I tried several things shown on different platforms, but none worked for me.
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39 views

Creating new session and switching back to first session results in graphic problems

I have installed all system updates and updated to plasma 5.3. If I create a new session and switch back to my first session with Ctrl+Alt+F7 I have graphic problems: Working is not longer ...
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45 views

Login screen looks weird with two monitors

I have installed all system updates and updated to plasma 5.3. But my login screen looks still like that After login everything is alright. How to fix this?
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87 views

ZTE HSUPA USB Stick on Kubuntu

I have ZTE Model MF 190 HSUPA USB stick. On my Ubuntu 14.04 desktop it detected it first time. I configured it and it worked. On my Kubuntu 14.10 desktop it does not. lsusb displays the device as ...
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153 views

High pitched voice in Skype when using external USB microphone

I am using Skype for Linux (v. 4.3.0.37) on Kubuntu 14.04.2 LTS. When making a Skype test call and using an external USB connected microphone, I noticed that my own voice is very high pitched ...
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867 views

Why ASRock X-Boost (automatic CPU overclocking) affects Kubuntu's boot?

I have a computer with Windows 7 and Kubuntu 14.10 installed (64 bits both), and when X-Boost is disabled there isn't any problems with any OS, but if X-Boost is enabled, when I try run Kubuntu, ...
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51 views

Can't navigate folders on Plasma5

I just updated to Kubuntu 15.04 running Plasma 5 and a very strange bug happened. From time to time, I can't navigate folders inside an application. When I do an "Open File for example" it will show ...
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35 views

Kubuntu keyboard problem

Issue is with some keys, when I type a I get al, for c I get c. and etc. It seems problem started to occur after latest updates..... Please advise...
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63 views

Kubuntu 14.10: Laptop only sleeps when closing lid every other time

I am running Kubuntu 14.10 on an older Toshiba Satellite laptop. I have configured it via System Settings to sleep when I close the laptop lid. This works but only every other time I close the ...
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322 views

How to change the way desktop icons are displayed in Kubuntu 15.04

I'm running KDE 15.04. My desktop icons all show up in a reduced size on a gray rectangular background. I want them to be displayed in normal size without that background, just as they were in ...
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51 views

Apply colors to non kde4 applications doesn't works under kde5

I can't get non kde applicaiton (Chrome for example) to apply colors from KDE. Any suggestions?
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158 views

How do I access GUI settings (kubuntu 15.04) or run them from Command line

Currently Plasma 5.3 is not running on my kubuntu 15.04 install. see Plasma has vanished Kubuntu 15.04 How can I access settings, i.e. what name/commands do I need to run whatever the plasma settings ...
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64 views

Dolphin takes a while to open (Kubuntu)

I tried out kubuntu a few months ago and encountered the same problem, when I try to open dolphin it takes about 15 seconds to fully load (this has never happened with any other file manager on other ...
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351 views

Plasma has vanished Kubuntu 15.04

Yesterday plasma-desktop not longer started on booting up, nor on command line plasma nor plasma-desktop, (tried those after a bit of web searching). Then I tried to upgrade to a newer Plasma via a ...
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50 views

SSH by key incredibly slow

SSH connecting with key, from my machine suddenly got incredibly slow (~10sec!). It is not a server or DNS problem as far as I can figure out. The problem suddenly appeared after a simple apt-get ...
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110 views

wifi problem networkmanager

I can not connect to my Wi-Fi, can someone please help? The network manager gets stuck at: "configuring interface". After a couple of tries I get two messages: 1. wireless network deactivated. 2. no ...