The official Ubuntu derivative using the KDE Plasma Desktop

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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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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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10 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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23 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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25 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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29 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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13 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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137 views

How to properly set up fcitx on Kubuntu 15.04?

I need help setting up fcitx on my Kubuntu 15.04 to write in Japanese. I first installed fcitx with apt. I forgot the package names I installed over the experimentations, but here is what's ...
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49 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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11 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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22 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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29 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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42 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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14 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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98 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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34 views

Visual tool for browsing LMDB files

I am looking for a program that works on Kubuntu and can open and display an LMDB file (Lightning Memory-Mapped Database). Ideally, gratis, can also edit the file, and supports large files, like ...
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53 views

15.04 USB Camera connection detection stopped working

After an upgrade to Kubuntu 15.04, now camera not detected as an attached device (same bug as in as 13.04?). FujiFinepix camera lsusb : Bus 001 Device 013: ID 04cb:01e8 Fuji Photo Film Co., Ltd
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113 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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138 views

Nvidia driver crashes and kernel errors on fresh install of Kubuntu 15.04

I have an MSI GE70 2OE-071US laptop, with Optimus and an Nvidia GeForce GTX765M graphics card. On Kubuntu 14.10, I was once able to run CUDA using Bumblebee with reasonable reproducibility. On Kubuntu ...
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21 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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331 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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23 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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59 views

Kubuntu 15.04 black bar at the bottom of the screen covering panel

I recently installed Kubuntu 15.04, and after a programm I ran in wine changed my resolution, I've had a black bar at the bottom obscuring my activity panel. I can still click on everything and it ...
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57 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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52 views

No internet access after system update

So I've just install some various updates that shows up. After system reboot I've lost internet access... Please help me with this :( I'm using kubuntu 14.10 on VirtualBox Network Adapter 1 is ...
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16 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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19 views

How to enable drop shadows in plasma 5

Kubuntu 15.04 Plasma 5.3+ Kwin 5+ I cannot find the setting to enable drop shadows. Or is there no setting for that?
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55 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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139 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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118 views

How do I customize date/time formats in Kubuntu 15.04?

In all prior versions of Kubuntu I've ever used (going back five years or so), I can go to System Settings and customize the date/time formats, specifying that I want 24-hour time, short dates, ...
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40 views

How can I change to one of the many system installed fonts in KDE5 konsole?

I have KDE 5 installed and would like to install a patched font for powerline. I already ran the script to install the fonts into ~/.fonts but when editing the konsole profile, I see a very limited ...
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181 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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149 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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143 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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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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245 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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77 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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42 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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37 views

Numpad for shortcuts

I try to assign shortcuts which includes numpad number keys e.g. Ctrl.+alt+5. But the numberkeys of numpad won't work only the numberkeys over the qwert keyd I found out that this seem to be an ...
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206 views

Kubuntu 15.04 Plasma 5.3 showing KDE apps with GTK themes

After upgrading to KDE 5.3 using Kubuntu Backports PPA, my system looks ugly with GTK themes overriding the default KDE Breeze themes, despite having all workspace and widget themes set to Breeze in ...
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74 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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16 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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25 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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56 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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49 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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214 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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30 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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24 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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49 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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225 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 ...