The official Ubuntu derivative using the KDE Plasma Desktop

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0
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1answer
56 views

Cannot input Vietnamese(Unikey)!

So here's the problem. I just installed Kubuntu 16.04 amd64 on my laptop. It just seems I can't input Vietnamese into any application although I've installed ibus-unikey, started it's daemon, ...
0
votes
0answers
31 views

Problem with desktop manager after updating to 16.04

I just update my Ubuntu to 16.04. After restarting, I found that my desktop manager is not started. It just give command line interface. After I try to input kdestart (I have Kubuntu from previous ...
0
votes
0answers
31 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 ...
0
votes
0answers
11 views

Lost system after update

I know similar subject was in forum not once, but answers which I found did not solve my problem. I have Netbook Lenovo S10-3 (old and slow) I was using Kubuntu for a long time, but about 2 weeks ago ...
6
votes
2answers
4k views

log error: “[drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!”

I get this error after installing Kubuntu 15.10 when restart Kubuntu: [ 74.873008] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! I use kernel 4.2.0-16 and KDE ...
1
vote
1answer
108 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 ...
3
votes
1answer
881 views

Kubuntu 16.04 Driver mananger broken

The driver manager is hanging on the "Collecting Information about your system" phase it's not progressing past this point. Is any one else experiencing this, if so are there any known fixes?
1
vote
1answer
66 views

Digital Clock Issue in Kubuntu 15.10

I am new to Kubuntu and I have an issue with the Digital Clock Widget. First things first: I did install NTP datetimectl does say NTP Sync Yes and the Local Time is correct as well $ ...
0
votes
1answer
239 views

Kubuntu 16.04 hybrid amd graphics card blank window

I am on a laptop with Intel/AMD hybrid GPU, and I believe I have the driver AMDGPU enabled by default. xrandr --setprovideroffloadsink was also set to the AMD card. So I tried to launch steam with ...
1
vote
1answer
80 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 ...
0
votes
0answers
33 views

dropbox icon gone but returned black

I think I have a potential solution to a fairly minor but annoying problem, upon updating my repositories the dropbox icon disappeared from the taskbar. I actually got it back by removing and ...
0
votes
0answers
6 views

DNS issue in Kubuntu 15.10 on campus network - DNS not resolving except when connected through one particular wifi router

I'm facing a weird DNS issue. I'm on a campus network. My laptop runs Kubuntu 15.10. When I connect from my dorm room wireless router (which is also on the campus network), everything is fine, I can ...
0
votes
1answer
49 views

Cannot compile java following upgrade to Kubuntu 16.04

Before I upgraded Kubuntu I could compile in eclipse. Eclipse now says: The project was not built since its build path was incomplete. Cannot find the class file for java.lang.Object. Fix the build ...
0
votes
0answers
26 views

Avoid flooding disk by copying to failed mount point

I intend to copy files from one Kubuntu PC to the Samba share of a second PC as a backup. For this purpose I am using a backup GUI tool. I would like to mount the samba share to a mount point on the ...
0
votes
1answer
200 views

Screen Tearing After Kubuntu Upgrade 15.10 -> 16.04

Just upgraded today, already regretting it. I have terrible VSync/tearing problems. Before it worked flawlessly. I already tried all compositor settings, some of them seemed to temporarily remove ...
0
votes
0answers
359 views

X.org does not start after 15.10 to 16.04 upgrade

I upgraded Kubuntu from 15.10 to 16.04 today using the official upgrade process. The upgrade was smooth: no errors at any point during the process. However, after rebooting, X.org fails to start up. ...
1
vote
1answer
36 views

Show all user accounts on greeter screen

Is there a way to have Kubuntu 15.10 default to showing all users known to the system on the login screen (greeter)? If I have users Alf, Bill, Chris, Daisy and Ella, and Daisy was the last user ...
16
votes
3answers
4k views

How do I install support for Unicode emoji in Chromium?

How do I make Chromium on Kubuntu render Emoji Unicode characters ? Like these : 💘💙💜💗💚❤💓💛💚💗
0
votes
0answers
51 views

add-apt-repository producing python error

Recently I updated ubuntu 14.04 to kubuntu 16.04.Whenever I try to add ppa repositories through "add-apt-repository",its producing python error.Please help me solve this error or suggest alternative ...
-2
votes
0answers
30 views

How do you make a bigger distribution for installation? [closed]

I liked the ubuntu installer DVD. Before it had installer disk, not live DVD and had a size of 4.4 GB, but needed to download Kubuntu\xubuntu\Ubuntu Studio too and config it. I have 2x Samsung 850 ...
0
votes
1answer
52 views

Low Battery Performance on Kubuntu 15.10

I have recently installed Kubuntu 15.10 on my Lenovo G50-70. But the pain is that it is giving extremely poor battery life. After full charging it to 100% it only gives me 45 minutes of battery backup ...
4
votes
1answer
4k views

How can I troubleshoot why Ubuntu keeps crashing on my laptop?

I have a one year old Acer Aspire 4752G netbook running Kubuntu 12.04 LTS with all the latest distribution updates installed. It was previously running great until about a week ago when it suddenly ...
1
vote
1answer
42 views

Binding a terminal command to a set of keys for Kubuntu 15.10

I have just installed cmus and to run it I need to go into terminal and enter the command "cmus". Is there any way I can bind this to a set of keys? Thanks.
0
votes
0answers
18 views

Sweet Home on Ubuntu 14.04 not working properly

I often use Sweet Home 3D program, but now I have a trouble with it. Should say, that when I use Kubuntu, it works fine, all options, all features worked properly. But on Ubuntu - no. First, I can't ...
6
votes
1answer
3k views

Set mount options for removable devices on Kubuntu

I share my computer in a multiseat configuration and would like everyone to mount removable devices with a umask of 0 (ie. readable and writeable by all and sundry). Well, ideally just by group disks ...
1
vote
1answer
17 views

Kubuntu 14.04.4 LTS: mouse pointer disapeared

I am running Kubuntu 14.04 LTS since years without this problem. But last week my mouse cursor did disappear while working with the system (when closing some windows and switching between virtual ...
1
vote
1answer
19 views

aptitude: symbol lookup error: aptitude: undefined symbol

When I run the following in my terminal: aptitude search linux-headers | grep ^i I get the following error: aptitude: symbol lookup error: aptitude: undefined symbol: ...
1
vote
0answers
28 views

Kubuntu - adding a 3rd monitor connected to onboard

Please help me find the answer in adding a 3rd monitor. My setup is I have 2 monitors connected to an external VCard (GeForce GT 730). I am adding a 3rd monitor which is connected to the onboard video ...
0
votes
0answers
16 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 ...
0
votes
2answers
64 views

How do I check if I have the beta or stable version of Kubuntu?

I installed the Kubuntu 16.04 beta 2 and I plan to upgrade to the final release when it's out. I just want to know now how to check so I can make sure. The solution here tells me that I have the ...
1
vote
0answers
18 views

I can't download new Plasma widgets and Plasma themes in Kubuntu 15.10

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 ...
1
vote
1answer
24 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 ...
0
votes
1answer
22 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 ...
0
votes
1answer
68 views

Kubuntu 15.10: Kate Crashes Immediately on Startup

As soon as I start Kate, it immediately crashes with these lines: No docs r (or the only) opened right now --> disable menu QWidget::setLayout: Attempting to set QLayout "" on KateMDI::ToolView ...
0
votes
0answers
23 views

How can I get the Insert key never to overwrite in Kubuntu 14.04?

I have read Is there any way to disable the default behavior of the Insert key? asked in 2011 but I can't find the Add button in System settings. I want my Insert key to insert, but it keeps ...
5
votes
1answer
5k views

KDE Plasma 5 Missing Removable Devices Option

I have upgraded my Kubuntu from 14.10 to 15.04 via Package-Manager. Now, Plasma 5 is used. But with Plasma 5, I am missing some functions: e.g. Removable Devices in System-Settings. (I used this to ...
0
votes
1answer
52 views

How can I quickly change the audio stream to a different device in KDE Plasma?

In Unity, if I click sound settings in the system tray, the window that comes up will allow me to change the default audio device live in one click. In KDE plasma, if I right-click on the speaker icon ...
-1
votes
0answers
24 views

Distrust with dist-upgrade

What we should know about dist-upgrade and how to do it correctly? I'm asking this because every time that I do a dist-upgrade, when it has a new kernel available, some strange behaviors happens. ...
11
votes
3answers
53k views

How to format/partition SD card?

How can I format or partition SD card in Kubuntu? Is there an application with GUI for this?
-2
votes
1answer
43 views

Google Chrome disappeared entirely

Google Chrome suddenly disappeared from my computer entirely after a reboot. I was using Chromium for some time but suddenly, Chrome appeared without me downloading it, and I thought something weird ...
0
votes
1answer
4k views

Kubuntu UEFI Dual Boot with Windows 7 failed at installing Grub-efi

I want to install Kubuntu 13.04 together with Windows 7 in UEFI Mode. I installed Windows 7 first, which created the EFI boot partition. When it come to installing Kubuntu, the installation failed ...
0
votes
0answers
11 views

Change color on Kubuntu

There is a very annoying thing on Kubuntu. When I'm on youtube.com search bar is like following image It 'pretty much the text is not visible. What options do I have to change settings to change ...
0
votes
1answer
81 views

Dell Inspiron does not go into GRUB after shutdown from Kubuntu

I bought a new Dell Inspiron 15 3000 (Ubuntu) laptop and installed Kubuntu 15.10. No dual-boot. Kubuntu only. Everything seems to work... with one exception: After shutting down (or restarting) from ...
4
votes
2answers
4k views

Shutdown Hangs for 5 Minutes on Kubuntu 14.04

I've had persistent problems with a 5 minute hang at shutdown for the last three versions of Kubuntu (13.04, 13.10, and now 14.04). I suspect this is not a KDE-specific problem. Recently, I performed ...
0
votes
1answer
13 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 ...
0
votes
0answers
13 views

How to install Slickedit trial in Kubuntu 14.04?

Has anybody tried to install the trial version of Slickedit in Kubuntu 14.04? I am new to Kubuntu and too inexperienced to succeed. How do I go about it?
9
votes
4answers
5k views

Flickering in KDE Plasma 5.4

I am facing flickering in KDE Plasma 5.4. Flickering stops when I change Compositor Rendering Back-end To OpenGL 3 and then change again to OpenGL 2. OS: KUbuntu 15.04 Graphics: Intel HD 4000
0
votes
0answers
18 views

How to get Thunderbird in dual boot to work properly?

I have a dual boot machine, KUbuntu 15.10 and Windows 10. The first system installed was KUbuntu and Thunderbird was initially set up on it. Once Windows 10 was up & running I did install ...
0
votes
1answer
7 views

Kubuntu restarting application at boot

I shutdown Kubuntu once with an app running know it starts @ every boot even if closed before shutdown. App not in System Settings -> Startup. How can I keep this from happening,
1
vote
0answers
28 views

macbook pro retina overheating

I've strange problem that I have tried to solve for long time Macbook Pro Retina overheating I've tried : laptop-mode-tools,indicator-cpu,thermald,powertop Distros tried to use but no fix : Ubuntu ...