Questions tagged [kubuntu]

Kubuntu is the official Ubuntu derivative using the KDE Plasma Desktop. Use this tag only for questions that are Kubuntu specific. Questions for Kubuntu are probably better asked at http://askubuntu.com/, the stackexchange site for Ubuntu.

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kubuntu 16.04: my panel icons keep disappearing after an upgrade

Intel "Core-2" processor (refurbished), Dell box, 2GiB RAM. I had all the everyday applications placed on the bottom 'panel.' Then I installed several new packages using Aptitude. Afterward. about ...
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88 views

x11vnc of a virtual monitor does not work

I'm trying to configure an eink-screen Android tablet as an extra external monitor of my computer. Up to now, I configured an extra virtual screen for my computer by creating the file /usr/share/X11/...
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2answers
40 views

Ubuntu ahead of Debian unstable

Apart from debian stable, testing and unstable branch contains more recent version of software. Ubuntu takes unstable one and maintains its own release system. But my point is for example KDE. KDE 19 ...
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1answer
57 views

Unable to install Nvidia drivers on Kubuntu (KDE Neon 5.19)

I have some problems installing Nvidia drivers on my Kubuntu system and to get them working (GPU-Model: GeForce GTX 980 Ti). I tried it first in the standard way: $ sudo add-apt-repository ppa:...
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1answer
337 views

WiFi not working Kubuntu 20.04 - Intel 8265 Network Interface

I have a problem with my WiFi card on Kubuntu. Sometimes the system doesn't recognise it, but what is strange is that it doesn't happen everytime, but just about one boot on four, and I can't ...
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1answer
47 views

External monitor through 'HDMI - USB-C adapter' detected, but gives black screen

I've recently bought a new Asus TUF Gaming A15 laptop which has a HDMI and a USB-c port. My setup is as follows: Laptop: Asus TUF Gaming A15 OS: Kubuntu 20.04 Monitor 1: Laptop screen Monitor 2: ...
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1answer
13 views

No Soundcard detected on laptop

I am running Kubuntu 20.04 on a dell XPS Dev edition. Sound used to work, but it recently stop working and no sound card is beeing detected $ sudo inxi -SNA ...
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8 views

kubuntu grub console at startup

I neweblie linux user. I have installed kubuntu on my laptopn. Every time I see grub console at the startup. Console does not exit by timeout. I must to input "exit". How to disable grub ...
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1answer
16 views

Linux kernel crc32.h missing from /usr/include/linux

I am trying to use the the Linux Kernel crc32 generation facility. I need to do a crc32 of some data to be sent over the wire (independent of any transport methodologies) to an embedded system. The ...
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2answers
259 views

[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun

I'm running a fresh install of Kubuntu 20.04. Many times when I shutdown (not every time, but often), it pauses for a minute or so before showing the error: [drm:intel_cpu_fifo_underrun_irq_handler ...
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1answer
699 views

Kubuntu 20.04 Shutdown/Reboot Hangs At “Waiting for process: crond”

I'm running Kubuntu 20.04. 3 out of 4 times when I shutdown or reboot, it hangs at: Reached target Reboot. systemd-shutdown[1]: Waiting for process: crond I've spent a fair bit of time googling, ...
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1answer
61 views

Is it possible to recover my HDD

Recently my PC running Debian crashed and I had to perform hard reboot. Since then I am not able to detect my 500GB Seagate HDD with around 6 partitions. At first it wasn't being detected in BIOS but ...
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1answer
3k views

Starting Wait for Plymouth Boot Screen to Quit

I'm struggling to install Kubuntu 15.04 on my PC. I've got a GTX 970 which i think is throwing off the trial mode from starting up. nomodeset doesn't work, so I tried nouveau.noaccel=1 to beget this ...
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1answer
37 views

Accidentally moved /usr now kde is broken. Do I need to re-install?

Okay, so I have a laptop with Windows 10 and KDE neon dual boot. While trying to fix a problem (Linux root did not have enough space left) I accidentally moved /usr to /home. I tried to fix it but ...
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5answers
26k views

How to get near-perfect screen recording quality?

Someone suggested I direct a copy of the unmodified X display to a file and afterwards convert that file to a general purpose video file. What commands would I use to do this on a Kubuntu system? (...
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0answers
18 views

previous successful Kubuntu 20.04 LTSB EFI dual boot now boot looping?

One day my touchpad stopped taking input so I rebooted my laptop & haven't since been able to return to Kubuntu. When choosing it in GRUB I see (1) the OEM logo for ~1 sec, (2) the Kubuntu splash ...
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25 views

Mounting a Samba Share as a File

This issue has been driving me crazy after about three months of fussing with it. Here's the current situation. I have an ntfs drive (left over from the windows days) on a computer running Kubuntu ...
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67 views

I am trying to install 8192eu driver on Ubuntu 20.04.01, after following every guide and forum I can find it is still not coming up on my driver list

I have just installed Ubuntu 20.04.01 and am trying to install the correct driver for my TP-LINK TL WN-821N, there is a popular github repo for it that I have followed and is basically the only answer ...
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19 views

Modify context menu for “Tasks” on KDE “Task Manager” Widget

Modify context menu for "Tasks" on KDE "Task Manager" Widget I have been looking online to no avail on how to add an context menu option to the Task Manager (hotbar) that sends ...
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15 views

usb usb4-port1: over-current condition error after booting into kubuntu

I updated Windows 10 to the most recent update and Windows is working fine, but when I boot into Linux after the grub menu, it shows me the logo of my Linux distribution which is kubuntu and then it ...
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0answers
12 views

How to change Application Dashboard background?

I'm using Kubuntu 20.04. I'm changed menu to Application Dashboard, but when i open it, my background completely black. I can't change background in Application Dashboard Settings. How to change ...
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2answers
1k views

Increase System Tray Icon Size in KDE

How can I increase the size of these System Tray Icons? :
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1answer
58 views

Wireless interface Authorization supplicant failed kubuntu 20.04

I installed Kubuntu 20.04 on my brand new machine MSI MEG X570 ACE motherboard with Intel Wi-Fi 6 AX 200 n/w card. There is no Windows installed no double booting only Kubuntu. When I try to connect ...
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0answers
29 views

Kubuntu installer changing partition table for unused disk?

I'm trying to install Kubuntu 20.04 from a USB key to an external (USB) hard drive. The system I'm using to do the installation is an Arch Linux that I'd like to leave untouched. The disk setup looks ...
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3answers
4k views

Avoid notification “kdeinit5 closed unexpectedly” in Plasma 5.14 when starting Dolphin

After upgrading Kubuntu from 18.04 to 18.10 and that to Plasma 5.14.5 through the "backports" PPA I am lucky enough to face almost no bugs, except annoying notifications saying "kdeinit5 closed ...
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0answers
412 views

systemd-shutdown[1]: Failed to finalize DM devices, ignoring

Each time I reboot my laptop, that's running Kubuntu 20.04, I see this message right before it reluctantly reboots: systemd-shutdown[1]: Failed to finalize DM devices, ignoring Also, rebooting takes ...
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3answers
5k views

LAPACK make fails: “recipe for target 'znep.out' failed” error

My main problem is getting this error: Makefile:463: recipe for target 'znep.out' failed after running make I was trying to install GPAW (g Projector Augmented Wave method, for DFT simulations) on ...
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3answers
1k views

How to automaticly open a URL at specific times each day

I am using kubuntu 14.04. I have installed cron using sudo apt-get install cron, and then I created this file in IDLE, called openurl.py. #!/usr/bin/env python import webbrowser webbrowser.open('...
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1answer
260 views

How to disable all global hotkeys in KDE Plasma?

I'm using a KDE+i3 setup on my machine and therefore I want to disable all the global hotkeys provided by KDE, since I've binded the keys properly in my i3-config. Upon exploring qdbus API, I've found ...
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1answer
2k views

kdeinit5 starts background konsoles with high CPU usage

I am using KDE Neon LTS 5.12, sometimes, for some unknown reason, I can see a high CPU usage that comes from started konsoles by kdeinit5. Every konsole has no window and uses up to 17% CPU ...
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27 views

Kubuntu : Set color scheme to “Breeze Dark” from command line

I am trying to change Kubuntu 20.04 color scheme through the command line. What I thought was the solution unfortunately didn't worked. What am I doing wrong ? In ~/.kde/share/config/kdeglobals , set :...
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15 views

'~/.gnupg' created on login although $GNUPGHOME is set to another directory

I'm using Kubuntu v20.04. I've noticed that the ~/.gnupg folder is automatically created at login though I have properly exported $GNUPGHOME. Also, gpg runs from $GNUPGHOME leaving me wondering as to ...
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4answers
23k views

What is gvfs and why should I want it on my system?

What does gvfs do for me on my Kubuntu machine and why is /usr/lib/gvfs/gvfs-gdu-volume-monitor eating so much CPU time? BTW: I read https://en.wikipedia.org/wiki/GVFS and still don't know what's in ...
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0answers
62 views

xinput | Button Mapped to Double-Click - How to Remap?

I'm musing a button with 12 xinput buttons (Contour Unimouse) - 1 2 3 4 5 6 7 8 9 10 11 12. Among its buttons, it has: One physical left button One physical middle button One physical right button A ...
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2answers
33 views

Two IP on the same subnetwork

My problem is the following. (kubuntu 14.04 64bits, kernel 4.40) I have a remote computer (on another place, I can't go on site) that have two network cards. On the second card (eth1), I have a dhcp ...
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1answer
28 views

Help with partitioning scheme for new Kubuntu dual boot

I have a 256 GB SSD and a 1TB HDD in my laptop. I want to dual-boot Kubuntu 20.04 with Windows 10. Please explain what exactly do /var and /tmp do, because I need to do some web developing and want to ...
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3answers
47 views

Kubuntu takes more than 2 minutes to boot!

Okay... so I did something which I was probably not supposed to do. I have a 256 GB SSD. GParted from a live Kubuntu CD showed that I have 16gb of unallocated space. I wanted to add it to the root ...
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0answers
99 views

PCI passthrough stopped working in (K)ubuntu 20.04 guest, but only after login

I have been using KVM/QEMU for GPU passthrough successfully for over a year now. In my case, I was passing an GTX1070 to linux and an AMD RX480 to Windows. When my Arch installation got messed up, I ...
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0answers
124 views

Kdenlive Preview Window Flickers

I'm a long time Linux user but new to Kdenlive in the last couple of months. I was using it on an old HP laptop I acquired from work (HP Elitebook 8460p; i5; 8 GB RAM; Intel graphics processor). I ...
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1answer
19 views

Kubuntu 14.04 download source

I want to download and use Kubuntu 14.04 (a.k.a Trusty Tahr ) ISO ( for testing some features on the latest KDE 4 release ) but looks like the official download link is no longer available. In the Old ...
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0answers
148 views

KUbuntu 20.04: ACPI Error: No handler for Region [RAM_] (0000000035790e19) [EmbeddedControl] (20190816/evregion-127)

I just installed Kubuntu 20.04 LTS Dual Boot with Windows 10 Pro. My Windows 10 Pro work fine. My Kubuntu also work, but some times it show error when boot. I can use Kubuntu without any problems. ...
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1answer
206 views

RabbitVCS Install On Thunar / Kubuntu 20.04

I'm trying to get RabbitVCS working on Kubuntu (20.04) via Thunar (1.8.14), but try as I might, nothing seems to work. Certainly it doesn't work according to their official install directions. I ...
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1answer
169 views

Kubuntu 19.10 black screen after wake up

I just got a new Laptop at work and installed a clean Kubuntu 19.10 on it. There is this problem: everytime I close the lid and reopen in or put it in sleep mode manually and attempt to wake it up, ...
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4answers
21k views

Linux/compiler-gcc5.h: No such file or directory

I run into problem compiling a kernel scheduler for testing the compiling error linux-2.6.32-rc3/include/linux/compiler-gcc.h:86:30: fatal error: linux/compiler-gcc5.h: No such file or directory ...
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0answers
45 views

My laptop won't recognise that it has an hdmi output. How do i fix it?

I've seen other topic with similar questions here, but none of their solutions worked and many were quite old already. I am using Kubuntu 20.04. My laptop doesn't recognise that it has an HDMI ...
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1answer
39 views

Kubuntu : NIC stuck in 100Mbps mode

I've tried several cables and I am pretty certain the NIC/OS is the problem. My NIC in my mobo supports 1Gbps but when connected to my homeplug (Devolo Magic 2 Wifi, deffo support GB ethernet), it ...
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1answer
299 views

Kubuntu 20.04 Won't Boot After Installing Build-Essential

I've got a near-fresh Kubuntu 20.04 install. I was going through & getting everything setup, until it randomly failed to reboot. I'm using whole-disk LUKS encryption, including the boot ...
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1answer
321 views

Installing Kubuntu with Manual Partitioning & Encryption

I'm trying to install Kubuntu 20.04 with LVM encryption on a dual-boot machine. Previously, I'd done this on Mint per these simple steps. In brief, all you have to do setup your partitions manually ...
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0answers
35 views

Nvidia xconfig 2 graphics cards 2 monitors - Kubuntu 20.04 not working

OS: Kubuntu 20.04 GPU: Quadro P620 I'm trying to use multipule monitors on two graphics cards, as of right now its just 2 monitors which are pretty identical to eachother, plugged into each graphics ...
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0answers
19 views

Laptop freezes on boot

While using Kubuntu 20.04 on laptops with a ryzen processor, sometimes when you try firing it up, it gets stuck at the boot screen and u have to reload a couple of times to get in, unless you have a ...

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