The official Ubuntu derivative using the KDE Plasma Desktop

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2
votes
3answers
862 views

Upgrading virtualbox from 4.3 to 5

I want to upgrade virtualbox 4.3 to 5.0 on my precise kbuntu 12.04.05. Problem is this is not an update what works incrementally but to do this you need to uninstall first virtualbox 4.3. When I do ...
3
votes
0answers
155 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
0answers
5 views

TAB key indents entire row instead of only text right of cursor

The TAB key is giving me unexpected behaviour in the text editor Kate on Kubuntu 14.04.3 LTS: Action Press TAB key. Expected behaviour Everything to the right of the cursor indents. Actual ...
1
vote
0answers
10 views

Login to desktop environment only for some users

i have a system with kubuntu on it and two different desktop environments. Is it possible to restrict the login for one of the two environments for a special user group? Like users of the group ...
0
votes
1answer
11 views

How to set up systemd after failed upgrade

I recently upgraded Kubuntu via update manager from 14.04 to 15.10. Apparently a bad idea. I can now only get a loggin screen. Startx results in: (EE) Fatal server error: (EE)could not create lock ...
43
votes
5answers
19k views

How do I open the Application Launcher on KDE with just the meta (“Windows”) key?

How do I open the application launcher ("start menu") of Kubuntu with my Windows key? Similar to how the Start menu in Windows is opened. I don't want to use Alt+F1.
0
votes
1answer
1k views

KDEconnect not visible in KDE system settings

After installing kdeconnect on my fresh Ubuntu 14.10 and then installing whole plasma environment I am unable to see KDEconnect settings icon in KDE system settings. On my previously Ubuntu ...
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 ...
0
votes
1answer
19 views

Kubuntu: Second monitor not detected correctly

After a recent update, my second monitor is not detected correctly anymore. It is displays a copy of the first ones content. Strange is that it appears to be detected correctly on the login screen: ...
1
vote
0answers
20 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 ...
1
vote
0answers
11 views

Brother MFC-J825DW on WiFi network receiving print queue but not printing

My Brother printer is not printing from my Laptop with Kubuntu 15.10 installed. When I tried printing a test page, the printer shows in settings 'Data file sent successfully'. The printer screen shows ...
0
votes
0answers
14 views

Trackpad not being detected after re-opening laptop (Kubuntu 15.10)

I recently installed Kubuntu 15.10 on my Dell XPS 15Z laptop. My touchpad works just fine when I first start the laptop, however when I put the lid down and put it back up later, the trackpad does ...
0
votes
1answer
63 views

Asked to remove packages when trying to install with Muon?

I keep trying to install packages using Muon Discover on Kubuntu 13.10, but every time I try to install a package I get a message saying that there are other things installed that have to be removed. ...
0
votes
0answers
11 views

KDE - “/media/dev/path is a folder, but a file was expected” error

I have a Kubuntu 15.10 installation (fully updated). Sometimes when I try to copy some files/folder the OS throws "/media/dev/path is a folder, but a file was expected" error. Screengrabs (Click on ...
1
vote
2answers
60 views

VLC video playback is trimmed and blacked out

I am using Kubuntu 15.10 and recently I have updated the version to the latest backport version. But soon after the update VLC has started making weird output. VLC is cropping out the video and the ...
1
vote
0answers
127 views

How to install Nokuntu in kubuntu 14.04

How can I install Nokuntu in ubuntu 14.04.I have gone through the answer here Unable to install (Nokia PC Suite) Nokuntu on 13.10 & 14.04 But this actually not solving the dependencies problems.
0
votes
0answers
12 views

Shift + numeric keypad prints number (with NumLock off)

Since Lenovo have decided to place the Home and End keys in unreachable locations on my Thinkpad, I use the numeric keypad for these. With NumLock off, 1 = End and 7 = Home. One typical use for this ...
32
votes
13answers
59k views

Unable to change brightness in a Lenovo laptop

Brightness adjustment keys <Fn + ⇑/⇓> have no effect (although they are recognized by the environment), and I can't change the brightness using GUI tools as well. This seems like a problem in ...
0
votes
0answers
10 views

I can't unmask a service on Kubuntu Wily 15.10

I'm using Kubuntu Wily 15.10 (fully upgraded). It already had installed the cryptsetup package. I'm trying to start the cryptdisks service but I get this: $ sudo service cryptdisks start Failed to ...
0
votes
0answers
59 views

Can't drag files from Dolphin to Chrome

Up until a couple of weeks ago, when I would try to drag and drop files from Dolphin (the default File Manager in Kubuntu) to Chrome (e.g., to add to an email or upload a video to youtube), there were ...
1
vote
2answers
43 views

How disable second disk on laptop?

I have Kubuntu on SSD (first) disk and also HDD (second, instead DVD-ROM) disk on my laptop. The second disc I use rarely. When my laptop is turned on, it does not emit any sound, but HDD peeps ...
0
votes
1answer
117 views

How do i uninstall kde packages with unmet dependencies?

I recently tried downloading from the software centre when I was greeted with this message: I then tried removing everything kde from ubuntu in the terminal but this is what happens: sudo ...
0
votes
0answers
15 views

Unable to launch RStudio from launcher in Kubuntu 15.10

Hi I have a problem with launching RStudio (latest stable release 0.99-xxx) from the Kubuntu launcher, by clicking on the entry. Background: I moved from Kubuntu14.04lts to 15.10 for the plasma5 ...
-1
votes
1answer
155 views

Suddenly black screen on Kubuntu 15.10

I suddenly have black screen on Kubuntu 15.10. If I run service sddm restart, and then service sddm status, it tells me that the service is active and running, but switching to desktop using ...
-1
votes
1answer
220 views

Kubuntu freezes during update when trying to download adobe installer

I'm updating to the latest version of Kubuntu, three times running now it's made it to the part where it goes to download the Adobe Plugin Installer and it freezes. I waited for 3 hours and saw no ...
6
votes
6answers
2k views

Remove calendar on KDE desktop

There is a calendar on my desktop, I don't know how it got there, what it is or how to remove it. It's seen in the upper left corner in this screen shot: Any help on what it is or how to remove it ...
8
votes
2answers
3k 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
13 views

System unbootable after editing rc.local

I did the following cause i wanted to activate rc.local in my Kubuntu 15.10 System sudo systemctl edit --full rc-local i added, cause i read it in a guide: [Install] WantedBy=multi-user.target ...
15
votes
10answers
38k views

How to completely remove kubuntu-desktop from Ubuntu

I installed kubuntu-desktop just to experiment with its interface. Then I decided to remove and did the traditional apt-get purge and autoremove but it seems elements of kubuntu are still there. For ...
22
votes
4answers
44k views

How to remove all traces of KDE installed

I have 2 computers with Ubuntu but on both I installed KDE to have another option for the users. Since Unity has come along very well, there has not been a need to use KDE for a while now. How can I ...
6
votes
3answers
2k views

Ubuntu is kde styled after install AND removal

I installed kubuntu-desktop and every thing was fine. Then later when I actually logged in to Kde, I decided that I still like Unity better so I ran sudo apt-get purge kubuntu-desktop && ...
0
votes
1answer
20 views

Auto-installing Ubuntu next to Windows on a separate hard drive? [duplicate]

I want to install Kubuntu on a computer which already runs Windows 7. For this purpose, I have installed an additional empty hard drive (the drive containing Windows is fully partitioned and should ...
0
votes
1answer
22 views

Can't change Theme Kubuntu

I have tried to install Kubuntu 15.10 and Ubuntu using the netinstaller, everything is working fine. The problem is, KDE uses only one Theme, which is the GTK+ theme. Meaning I can't change them ...
0
votes
1answer
20 views

How to select frequency band with dualband wifi adapter?

I just had my 8812au dual band wifi adapter (TP-Link AC1200) working under by Kubuntu 14.04.03. I can see it's listening to both 2.4GHz and 5GHz frequency bands: [Uqbar@Feynman ~] iwlist wlan0 freq ...
0
votes
0answers
8 views

Kubuntu 14.04 Wifi [duplicate]

After installing Kubuntu 14.04 my computer dont seem to be able to detect any wifi at all. Internet works with a cable. I got a Broadcom Corporation BCM4313 Driver
10
votes
7answers
21k views

Black screen after login Kubuntu 15.04

I have updated my kubuntu 14.10 to kubuntu 15.04. And now after boot, when I enter my password on welcome screen, I will get black screen. It's looks like screen powered off. No cursor, no change ...
2
votes
2answers
57 views

Low CPU frequency

I'm having the following problem with Kubuntu 15.10. Sometimes when I put my laptop(Dell e6420) to sleep and later wake it up, I see that CPU is running at really low frequency (~600Mhz) This is ...
0
votes
0answers
22 views

Installation of Gparted on SSD [on hold]

After a successful Kubuntu installation, I am unable to see all the hdd's (OS installed on SSD); and Gparted was suggested to me by someone with infinite patience and toleration of newbie questions. ...
0
votes
0answers
18 views

Newest Mplab software that works with Ubuntu and ICD2

I have an old ICD2, used with an old version of MPLAB Integrated Development Environment (IDE) under Windows. Now I need to use this hardware again for a microcontroller but my OS is nowadays Kubuntu ...
0
votes
2answers
57 views

Cannot log in after upgrade: xcb plugin missing

I have Kubuntu 15.10 with kubuntu-ppa/backports and kubuntu-ppa/ppa enabled. Yesterday some updates came (5.5.3 I guess). Now I cannot log in: .xsession-errors This application failed to start ...
0
votes
0answers
18 views

Screen locking and energy saving does not work when using ethernet connection

I have Kubuntu 15.10 installed on three computers, and on all three computers, I have "Screen Energy Saving" and automatic screen locking enabled in the system settings. On desktop 1, both screen ...
7
votes
3answers
7k views

Bumblebee Intel+Nvidia on 15.10 blackscreen issue

I have a fresh install of Kubuntu 15.10, i have a msi GT70 laptop with optimus. I have installed bumblebee bumblebee-nvidia, it is absolutely needed because nouveau keeps crashing at login. So i ...
10
votes
3answers
11k views

Avconv warning while downloading YouTube video

I received this warning: Your copy of avconv is outdated, update avconv to version 10-0 or newer if you encounter any errors. while downloading a YouTube video with youtube-dl -f 137+140. I am ...
1
vote
2answers
7k views

Wireless not working on Kubuntu 14.04 Qualcomm Atheros AR9485

(I apologize if I make some mistakes in this article, I'm French so English is not my mother tongue). I'm a newbie on Linux stuff and maybe the solution of my problem is obvious but I need your help. ...
6
votes
2answers
1k views

How to disable the popping sound when changing the volume in KDE/Kubuntu?

I've just upgraded Kubuntu from 12.04 to 14.04, and (as expected) there are several annoyances. The first one I've tried and failed to solve is the "popping" sound that is played whenever I change the ...
9
votes
6answers
8k views

Bluetooth mouse not auto-reconnecting to laptop

This has been asked, and answered, a million times before. And I think I've read almost all those questions and answers, and tried as many of the solutions as I can. However, I still can't get the ...
0
votes
0answers
21 views

Grub repair for encrypted disk

I previously had Kubutu (14.04 i think) installed with an cryptoLuks encrypted hard disk. I have been trying to install 15.04 on the same drive. The install went ok with no errors but I wasn't able to ...
4
votes
2answers
6k views

Flash doesn't work in firefox after upgrade Kubuntu to 14.10

I upgraded Kubuntu 14.04-x64 to 14.10. Now flash does not work in Firefox. Now flash is an empty area which sometimes is black when cursor is under it. But flash still works in Chromium.
0
votes
1answer
18 views

Password required to suspend in Kubuntu after the latest upgrade

Looks like something broke PAM yet again. Kubuntu with the Backports PPA asks for my password instead of suspending after a period of inactivity. Anyone found the reason and/or a workaround yet?
0
votes
0answers
26 views

Kubuntu 14.04 not loading lightdm after update

After updating my Kubuntu 14.04 setup yesterday, the computer now stops booting before the login manager pops up. Pressing the Esc key reveals that the lightdm manager is failing to load for some ...