The official Ubuntu derivative using the KDE Plasma Desktop

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1answer
105 views

Kubuntu -> Chrome and Firefox Tab and bookmarks fonts are really tiny

How do you make them bigger? Things I did today. I had a monitor go black today, loaded nvidia management to correct this problem, also adjusted monitors via window management. Not sure if those ...
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0answers
10 views

UI Font Size in Firefox, Opera, Chromium and Thunderbird Disregard System Settings

I don't know why but all 4 applications are not following the font size set in system settings. Any clues?
1
vote
0answers
11 views

Amarok 2.8 High Memory Usage in Kubuntu 16.04?

Brand new install of Kubuntu 16.04 and i noticed that Amarok is the biggest memory hog right from the start with 450Mb. The same Amarok version on Kubuntu 14.04 uses only 75Mb. Any hints or ...
-7
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0answers
29 views

Help me about Kubuntu 16.04!

I want to ask a question: "What do I do after my laptop has finished installing Kubuntu 16.04?" Thanks!
1
vote
1answer
10 views

Compose key problem on one KDE system

I have several Kubuntu systems, configured the same way, where I have enabled the compose key (I write in multiple languages), but the upgrade to 15.10 on one of those systems broke my compose key. ...
2
votes
0answers
15 views

How can I force the window to open in a given desktop in Kubuntu?

Let's assume that I had opened a .txt file using Kate in Desktop 1 and switched to Desktop 2 afterwards. Now if I open another .txt file, again using Kate, I am automatically switched back to Desktop ...
0
votes
1answer
10 views

Login with LightDM fails

I try to login with LightDM on Kubuntu 16.04. LightDM is the only installed display manager. I see the login screen and enter my password, but I get the message Failed to start session. The last ...
2
votes
0answers
14 views

How to Dual Boot Windows 10 (UEFI) with encrypted LVM Kubuntu 16.04 on 2nd HDD

I currently have Windows 10 (upgraded from Windows 8 originally installed on machine) running on a HP Envy 17 laptop booting in UEFI mode. The laptop comes with a 2nd hard drive bay, and I would like ...
2
votes
1answer
8 views

Separate icon sets for GTK+2 and GTK+3 applications on Kubuntu

I use the Breeze Dark theme on Kubuntu, which also works perfectly with GTK+2 applications, but it's not fully supported on GTK+3 applications like Firefox yet. Because of that, I've set my system to ...
0
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1answer
2k views

What is the most sensible graphics driver to install for Nvidia GTX 670MX and Kubuntu 13.04? [duplicate]

Information for *ubuntu 16.04 and later It is my understanding that one should run sudo apt-get install nvidia-XXX-updates nvidia-prime and then select desired graphics card from the Nvidia-X ...
0
votes
1answer
19 views

Wine does not launch. How do I install it properly on Kubuntu 16.04 LTS?

I have been using Kubuntu 10.04 LTS until last month and used to run a Windows programme (accounting) with Wine with great success. I do not remember having any problem since the beginning (many ...
0
votes
1answer
5 views

Access LightDM configuration in KDE system settings (Kubuntu 16.04)

I'm running Kubuntu 16.04 and use LightDM (not SDDM). In a previous version of Kubuntu it was possible to access the LightDM configuration (e.g. changing background,...) via the KDE system settings. ...
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2answers
42 views

Kubuntu upgrade from 15.10 to 16.04 failed

Some time ago I triggered upgrade from Kubuntu 15.10 to 16.04 and it failed (I forgot why and with what message). When I issued sudo do-release-upgrade it failed with message: E: The value 'wily' is ...
2
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0answers
10 views

keep kmail folders on external hard drive

I have limited space on my local hard drive. With thunderbird I can easily keep all my mail on a folder on an external hard drive by moving the thunderbird profile folder to the external disk and ...
1
vote
1answer
133 views

Okular opens large pdfs with blank pages

I can't open large files (above 10MB) with Okular. This is a problem with files I save and open up in Dolphin and files I open directly in Firefox (i.e.e-books). Symptoms: -PDF opens but is blank or ...
5
votes
1answer
217 views

Where is KNode in Kubuntu 15.10 “Wily”?

I just installed Kubuntu 15.10 "Wily Werewolf" and found that it seems to be missing KNode. A Google search turned up the page http://packages.ubuntu.com/en/wily/knode and there is information about ...
1
vote
1answer
667 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 ...
0
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2answers
105 views

Problem with DNS in the latest Kubuntu 16.04 update

Today I install Kubuntu 16.04, again, because I'm having trouble to navigate. I have tried all kinds of browser, and with all I have the same problem. Sometime when I open a page, I received these ...
0
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1answer
18 views

(Kubuntu) No steam games will start

I'm new to Linux systems so this might be really easy to fix. but recently i have been re installing all of my games. the first two that were installed (Hacknet, and Axiom Verge) worked perfectly fine ...
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0answers
160 views

GitKraken and Kubuntu - installs but doesn't run

I just tried to install GitKraken, but it doesn't run on Kubuntu 16.04. When I run the program in terminal, I get the output: state: update-not-available App load time: 448ms state: checking-for-...
1
vote
1answer
23 views

Problems with Dutch translations

I installed Kubuntu 16.04 in Dutch. When starting the first time I got the message "can not start Plasma 5". I found a solution in Kubuntu 16.04 Plasma can not start after fresh install There it is ...
3
votes
4answers
76k views

How do I make a bootable USB stick from an ISO image? I'm running Kubuntu 12.04

Why won't kb3 (in Kubuntu 12.04) recognize a USB drive and allow me to burn an ISO image to it? kb3 is the default iso burning application and it gets generally good reviews. But it pops up a dialog ...
2
votes
1answer
15 views

modify KMail config file

I want to configure the kmail's config file but I am not able to find it. Can you please help me out and point me to where it is on the system. In Thunderbird I can find it in -- HELP > Troubleshoot ...
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0answers
14 views

How do I make h5py MPI-aware with the apt package system?

As I am trying to run parallel hdf5 with h5py and mpi4py, I am met with the following error: NameError: global name 'mpi4py' is not defined Googling suggests that this is because h5py is not "mpi-...
4
votes
6answers
1k views

akonadi services and mysqld use too much memory in kubuntu 16.04

I recently installed kubuntu 16.04 on my Dell studio xps 1640 that has 8GB of Memory installed. Everything is working fine but Something is really bothering me. After a fresh boot up, when i check the ...
2
votes
3answers
410 views

Strange icon in Unity top menu bar after installing KDE

After installing Kubuntu (I am using Ubuntu 14.04), it seems that a lot of fonts disappeared and a strange icon appeared in the top menu bar in Unity. I think it is the keyboard layout icon that has ...
4
votes
1answer
2k views

kubuntu 16.04 release unusable in virtualbox

Installed the released amd64 version of Kubuntu in a VirtualBox virtual machine - single CPU, 4096 Gb memory, 128 Mb video memory, single monitor. After install, following instructions from several ...
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
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0answers
6 views

How can I find out why/how Firefox under Kubuntu 16.04 allows cookies from sites I have blocked?

I have blocked the site exactly as how the domain is specified in the cookie itself. I have also blocked the domain with a wild card. Still it is able to create cookies in my browser. How can I ...
3
votes
2answers
1k views

How can I get the Plasma 5 Device Notifier to give me appropriate options for DVDs after upgrading from Kubuntu 14.10 to 15.04?

Previous to installing Kubuntu 15.04, I was using Kubuntu 14.10 with Plasma 4. There, the Device Notifier would give me a number of options for Video Discs which I inserted. These included playing the ...
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0answers
10 views

deluge-console keeps disconnecting from remote daemon

I have setup Deluge Daemon (with Web UI) on a RaspberryPi with allow_remote=True. Afterwards I installed Deluge on Windows 10 and ran sudo apt-get install deluge sudo apt-get install deluge-console ...
0
votes
0answers
7 views

Kmail: Increase horizontal spacing in message list

I want to increase the horizontal spacing in the message list in Kmail. I find that the spacing is a bit too close to each other, and would like more space between the emails in the message list. I ...
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vote
2answers
3k views

Installing Nvidia driver on Kubuntu 15.10x64: The distribution-provided pre-install script failed! Continue installation anyway?"

I try to install the Nvidia driver 340.93 on Kubuntu 15.10 x64 (graphic card: GTX 690). I performed the following steps: Go to http://www.nvidia.com/object/unix.html Download Latest Legacy GPU ...
0
votes
1answer
27 views

How to downgrade plasma 5.6.4 to 5.5

I installed via the backports ppa but experiencing pretty much bugs. Is there any way to downgrade?
1
vote
1answer
17 views

I changed my users userid and cannot login with plasma anymore. terminmal works though

I have kubuntu 16.04 running. I wanted to setup a permanent mount to my synology NAS and following their tutorial I adapted my userid to the one on the synology. I created a new user on my machine ...
0
votes
1answer
32 views

Resize Desktop icons and widgets in kubuntu 16.04 LTS [duplicate]

on my new laptop I installed the latest LTS of kubuntu (16.04). After adding some widgets and program shortcuts to the desktop I found that I am not able to rizise the widgets and icons (which are ...
0
votes
1answer
47 views

Update message in Kubuntu 16.04

In the Kubuntu KDE update program "Entdecken" (discover?), when new updates are available, there is a general description of the program but i cannot find the update message, showing what the update ...
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0answers
23 views

Kubuntu: kscreen: Primary output changed from KScreen

My friend have Kwin problem random times. The window graphic (bar, title and buttons) disappear. Kwin replace methods not solve the problem. Strange Syslog informations to help below. I need more ...
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vote
1answer
66 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
96 views

Kubuntu 16.04 Lost Dual Monitor Capability

new to Kubuntu and relatively new to Linux overall. I installed Kubuntu 16.04 on Desktop with add-on Radeon HD 5850 GPU. I'd previously used this exact hardware to run dual monitor. I plug a DVI (my ...
-1
votes
2answers
27 views

Unity not loading after uninstalling kubuntu

I installed kubuntu to see what its like, hated it and wanted to go back to unity. So i uninstalled it. The problem now is that I dont seem to get unity running. Booting always hangs at a list with ...
0
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0answers
15 views

Error on librados when trying to install qemu-kvm [duplicate]

I am trying to install kvm on Kubuntu 16.04 64-bit. I am following this documentation. When I try to install qemu-kvm with the following command given in the documentation: sudo apt-get install qemu-...
1
vote
1answer
18 views

How do I change startup sound in KDE Plasma?

It's nice that KDE Plasma plays sounds on startup, but that awful click sound (or whatever they call it) is annoying. Anyone know how to change the startup sound in KDE Plasma?
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vote
0answers
58 views

Laptop getting too hot after installing kubuntu-desktop in ubuntu 16.04

I installed kubuntu-desktop 2 days ago and now my laptop is getting very very hot within 15 minutes even if i only run my browser. This problem remains even when i log in to unity. I have been using ...
0
votes
1answer
20 views

duplicate menu items in GRUB [duplicate]

Just installed Kubuntu 16.04 last night, only to have it not include my Windows partition in GRUB. So I ran BootRepair and what happens next? My Windows partition comes back, but I now have duplicate ...
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vote
1answer
19 views

How to start another user session from CLI on SDDM?

Currently the only way I know of is KDE lockscreen, but I also use openbox sometimes and while doing so have no way of starting a second user session.
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0answers
17 views

How to set Jalali calendar in kubuntu 16.04?

In earlier versions of Kubuntu I can set custom calendar for the whole system but now I can't find it . How can I set Jalali calendar in Kubuntu 16.04?
1
vote
1answer
422 views

Kubuntu 16.04 : Software centre search bug

I installed the new 16.04 kubuntu and I have problem with Discover - Software center. So these are the screen shot that I have made This is the first look you see that we have wrong aligned text, ...
0
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0answers
15 views

Kubuntu KDE crash on unplugged monitor

I got a medion laptop computer running on Kubuntu 16.04. I was working on an essay, so I plugged my TV in as secondary screen. Now I wanted to simply take the laptop to my bed to watch a movie and as ...
2
votes
1answer
35 views

line-height problem when using ž character

If I write a line containgin ž in konsole or kwrite, the line height gets messed up. Is the default font broken, or is it the apps? Didn't know where to report the bug, so "ask ubuntu" sounded as a ...