The official Ubuntu derivative using the KDE Plasma Desktop

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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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185 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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1answer
40 views

Using a 3rd monitor on a hardware switch with dual display Graphics card

Is there a way to fool kubuntu into thinking that a 3rd monitor on a hardware switch is the same monitor - same screen resolution etc? And therefore be able to switch between a second and third ...
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156 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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1answer
91 views

Installing Kubuntu or Gnome3 on ubuntu [duplicate]

I am using Ubuntu 14.04. I like default unity desktop environment, but now I want to try Kubuntu. So please tell me a way to do that. I should have options for choosing which desktop environment to ...
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152 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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52 views

Numeric keys not working in kCalc

I'm using the latest version of Kubuntu with an a4tech KBS-21 keyboard and there is no problem with my desktop and all the software except for kcalc. In kcalc, my numeric keys won't work at all while ...
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1answer
23 views

Kubuntu is doing weird sound even after reboot every 15 seconds or so

I rebooted, then closed every program I could think of and I still hear repeating after around 15 seconds: Here's what it sounds like. (Minus the static, that's just the recording) Is there any way ...
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1answer
68 views

error installing kubuntu 14.04.1 desktop-amd64 on vbox

Trying to create a virtual machine using this downloaded 'kubuntu-14.04.1-desktopamd64.iso' virtual disk image. However when I go to 'Install Kubuntu'. I get the following error: Installer ...
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41 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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263 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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22 views

getting rid of kubuntu while keeping ubuntu

I have Ubuntu 15.04 and and I recently put Kubuntu 14.04 on my computer alongside Ubuntu and this morning Kubuntu kept freezing at the login page. When I put in my passcode, and still won't work even ...
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1answer
60 views

What is the thing in KDE that override my locale settings

With Kubuntu 14.04, I have got some trouble with the locales. "Something" in KDE override my settings (I say in KDE because if I use gnome, I got no problems). Here are my settings $ cat ...
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81 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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1answer
53 views

Free space at home partition is not as expected

Almost all of my free space at home is missing and I have no idea where it is. df -h /dev/sda6 1.4G 1.3G 88M 94% /home I tried: sudo tune2fs -m 0 /dev/sda6 Setting reserved blocks ...
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2answers
484 views

Errors encountered when installing kubuntu on 15.04

I ran: sudo add-apt-repository ppa:kubuntu-ppa/backports sudo apt-get update sudo apt-get install kubuntu-desktop and after it gave me this error message: dpkg: error processing archive ...
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1answer
50 views

How to report a bug in Kubuntu?

I need to report a bug against plasma-widgets-workspace that got installed for Kubuntu. The "regular" ubuntu-bug plasma-widgets-workspace complains that: The problem cannot be reported: This is ...
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43 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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39 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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1answer
50 views

Save session settings in KDE environment without shutting down

When Kubuntu is shut down, the session settings are saved: Programs which were opened, plasma settings, etc. When restarted these settings are restored. e.g. the programs which were open, are opened ...
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0answers
26 views

Export and Import settings of Plasma5

Is there a way of exporting and importing Plasma5 settings like settings for the taskbar, dophlin, shortcuts and so on and import them for a new user or on a new installation?
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141 views

How to install kubuntu on Lenovo thinkpad e555

I have been trying to install Kubuntu 15.04 on Lenovo ThinkPad E555. I have created /, /home and /boot partition but as soon as I install it, it doesn't show up on boot screen (it only shows Windows ...
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214 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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75 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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1answer
103 views

Starting Dolphin with shortcut Meta+E

I'm used to open a file manager with the shortcut meta+e from Windows. Now I would like to have the same behavior under Plasma 5. I've edited the shortcut here: But when I use the shortcut ...
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2answers
209 views

VMware Workstation is not working in Kubuntu 15.04

I have installed VMware Workstation and when i try to open it the following error message is displayed:- And when I click on the Install button another error is displayed: I also viewed the log ...
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1answer
138 views

Customize drop shadow in Plasma 5.3

How can I customize drop shadow of the windows in Plasma 5.3_ I would like to have a stronger/bigger shadow like in MacOS
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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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0answers
45 views

Apps running with wine looking ugly

I've installed notepad++ with wine. If I run this application it looks like Win95. So now twenty years have past and I would appreciate a look that is a tiny bit more state of the art. I found this ...
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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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60 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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51 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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80 views

kubuntu 15.04 background image disappears

After one of the latest upgrades the background image disapper and the whole background becomes black. Nothing is possible anymore in de Desktop Settings, whatever you change the background will stay ...
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228 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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0answers
52 views

Kubuntu cannot copy file to external drive - errno: 5

Just until recently, I've been having trouble with transferring files from my laptop hdd to my external hdd as it keeps coming up with the same error. Is this because of my external hdd format not ...
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1answer
39 views

Kubuntu has serif font in some dialogs

I was going through some settings of my Kubuntu 15.04 installation when I hit 'Defaults' in System Settings > Fonts. I believe this is what caused some texts to display in serif fonts, the best ...
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1answer
27 views

There is something in my home folder that makes Kubuntu stuck at login. What is it?

I have a partition with my home folder mounted at /home and so I login and the screen goes black and the login screen reappears. Where can I find a log or error report or something?
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31 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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1answer
4k views

Error getting authority: Error initializing authority: Could not connect: No such file or directory (g-io-error-quark, 1)

I just got this error from Kubuntu 15.x when starting up after restart to upgrade kernel. Error getting authority: Error initializing authority: Could not connect: No such file or directory ...
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12 views

Problem installing Kubuntu 14.04 using wubi [duplicate]

The installation is hung up and I have the following error message: "An error occurred: Permission denied" The log file contains this explanation: "Error: ...
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0answers
212 views

kde5 reset user settings

I'm confused. I was playing with opacity in KDE5 and made a mistake so now I can't see any windows at all -- ok, not one of my better moves :) So I log out, and: rm -rf ~/.kde rm -rf ...
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1answer
50 views

I am having trouble with updating in kubuntu 15.04

Hello I am a linux noob but I have recently started dual-booting Kubuntu 15.04 with Windows 8.1. It worked well with the first round of updates but after adding repositories such as Wine and ...
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2answers
47 views

How to boot from an Ubuntu USB?

My laptop is running windows 10, build 9926. I would like to install Ubuntu or Kubuntu over windows 10. I have USB drives formatted and ready with the ISO files of Ubuntu and Kubuntu. (each drive has ...
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0answers
141 views

15.04 upstart&systemd boot problem

I upgraded to Kubuntu 15.04 and cannot start using either systemd or upstart without going into rescue mode. I switched from systemd to upstart without any change. It hangs at the Kubuntu logo and ...
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1answer
71 views

Changing mouse polling rate

I am in need of reducing my mouse polling rate. When running cat /sys/module/usbhid/parameters/mousepoll it will return a value of 0, which is very high. I have tried the classic ...
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0answers
64 views

Reverse scroll direction in plasma 5

Recently upgraded to kde plasma 5, I have noticed that reverse scrolling does not work on plasma 5 windows such as the control panel or application launcher while it works in other apps. Is there a ...
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2answers
750 views

Kubuntu 15.04 - Wrong log in screen resolution on laptop

I realise that there are similar questions on this problem for Ubuntu, including a question that I asked myself, but I have the same problem with Kubuntu 15.04. My Kubuntu system is set to a ...
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1answer
39 views

Problems on Kubuntu machine connecting to some sites after AT&T uverse upgrade

I recently had the U-verse service upgraded, and noticed that Facebook and youtube, and sometimes Yahoo have problems loading and displaying content. I am running Kubuntu 14.04 LTS, and using the ...
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25 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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1answer
64 views

When can we expect Plasma 5.3 to be available for Kubuntu users

Plasma 5.3 has been released in Kubuntu backport ppa, but not in the main ppa. What is generally the timelines that a backport is available in the main ppa. What are the reasons why I should not go ...