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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18
votes
3answers
10k 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? ...
8
votes
3answers
5k 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 ...
6
votes
3answers
777 views

Turn off Caps lock when Escape is pressed

Is there any way to disable CapsLock whenever Esc is pressed. Yes, I use VIM! I actually have an alternative all-caps keyboard layout on Ctrl-6 but I find it cumbersome and would prefer to just have ...
4
votes
2answers
9k views

Ideas how to get my usb audio interface to work with Linux?

PulseAudio does not appear to recognize the Focusrite Scarlett 6i6 USB audio interface. The 2i2, however, is properly recognized and it works as expected. I can't seem to get the 6i6 to work on the ...
4
votes
1answer
3k views

Help me repair my python - I think dpkg has to be reset (very tricky issue)

first question in Unix & Linux - I really hope, someone can help... Summary (TL;DR) On my Kubuntu 14.4 (which has python 2.7.6 as standard) my python is broken after I tried to install python ...
3
votes
4answers
11k views

NVIDIA driver upgrade failed

I downloaded the latest(331.49), tried to install, but failed. I compiled the kernel module and at the end of the installation it said that it went successful. But on bootup it said: version mismatch, ...
3
votes
2answers
528 views

How to open a program as another user inside a logged display?

I'm trying to open netbeans as a different user, but isn't working. I'm running a Kubuntu 12.04 LTS with KDE. And I tried the following: Open a terminal, type su - myotheruser, type the myotheruser ...
3
votes
1answer
3k views

Can't mount RAID after upgrade

I just upgraded my box to 14.04 and on bootup I got a message, that my RAID devices can't be mounted automatically so I chose to skip it and work through it after boot time. Now booted up, A mount -a ...
3
votes
1answer
716 views

Replacing Multiple Debian Packages from Compiled Source

I've had to download and install a version of a library from its source code repository. The problem is is that other packages from the Kubuntu package manager require this library to be installed. ...
3
votes
4answers
6k views

How to display a (zenity/GUI) dialog to the user after a root cron task has completed

I have a simple periodic cron task that must run as root. I want to use Zenity (or similar) to display a GUI informational dialog to user 1000 (or logged in user or all users) when the cron task ...
3
votes
4answers
3k views

Dual boot - Kubuntu and Windows 8 - how to?

I recently installed Windows 8 on my computer. These are the specs: Fx-8150 CPU 8 GB RAM ATI HD7870 120 GB SSD 2 TB HDD Mainboard: Gigabyte GA-970A-UD3 (rev 1.1) (only bios but EFI mode possible ...
3
votes
3answers
536 views

Linux Mint 14.1 not bootable because of “secure boot”

I'm trying to install Linux Mint 14.1 on my Lenovo B570, but when I try to boot the thumb drive, it displays a message: "Secure boot is not enabled" and then goes black screen. I read lots of posts on ...
3
votes
0answers
33 views

Directing sound output for specific applications

I'm trying to direct the sound from Youtube running in Opera to my sound card's HDMI output (to a TV), but still have all other OS sounds go to my PC's "Built-in Audio Analog Stereo" playback device. ...
3
votes
0answers
77 views

Automatically restarting process in the X server

I would like to know how to have a process that starts with the X server and automatically restarts when it stops running. I am running Ubuntu 14.04 with a KDE 4.13.3 desktop. I am running the ...
3
votes
0answers
343 views

How can I crop a 1920x1200 monitor to 1920x1080?

I have just purchased a 1920x1200 monitor, and have some situations where I want to force the output to the more common 1920x1080. However, I don't want to distort the output, and would prefer a ...
2
votes
1answer
74 views

Isn't /boot a separate mount?

My understanding is that /boot is being accessed by lower level tools (e.g. grub) during system startup and so it is formatted specially in a simpler format than the rest of the disk. But when I do: ...
2
votes
1answer
4k views

How to restart KDE window decorations without loosing the running X session

For graphics editing of some special graphics formats I am using a java program called imagej. This has the annoying bug that one special function tends to kill KDE's window decorations if it has too ...
2
votes
1answer
4k views

How to install listings package in Kubuntu for LaTeX?

I installed LaTeX on my Kubuntu with those commands: sudo apt-get install abntex sudo apt-get install texmaker sudo apt-get install texlive-latex-base texlive-latex-extra texlive-latex-recommended ...
2
votes
3answers
1k views

Dead (compose) keys not working in GTK apps since upgrade

I'm running Kubuntu with KDE as my main desktop environment. A while ago I set up dead keys so I can type Chinese pinyin and other accented letters and special characters. As a side note, I use IBUS ...
2
votes
1answer
267 views

krusader - single queue instead of multiple queues

I need to copy a whole bunch of files from various directories onto an external drive. I thought Krusader might be the best tool for this job. As I select and copy different files, a new queue ...
2
votes
2answers
458 views

Emacs : Ctrl+space (set mark) insert only a space in Konsole

I'm having a problem with emacs in Konsole : I can't set a mark to select text in emacs. Ctrl+space insert a space character instead of setting the mark. On XTerm, i've almost the same behaviour. It ...
2
votes
1answer
412 views

Opening links outside of broswer in kubuntu opens html from local kde cache only

I have this odd problem where whenever a link is opened from the shell, the cached html is opened locally, instead of through a browser. to illustrate: if I run the command xdg-open ...
2
votes
2answers
381 views

Kubuntu - GUI context menu sudo/root

A couple of years ago I found something in a package manager that added a context menu item that allowed me to open files and save them normally without being harassed about file permissions. Can ...
2
votes
1answer
545 views

Mail Dispatcher Agent: Could not access the outbox folder (Unknow error. (Failed to fetch the resource collection.))

Why am I receiving this error message on Kubuntu since I upgraded to 12.04 and how can I make it stop appearing? It appears as a pop up balloon above the system tray. Mail Dispatcher Agent: Could not ...
2
votes
1answer
336 views

KDE Kubuntu System Monitor ProcessTable.sgrd and SystemLoad2.sgrd malformed XML

When trying to open the System Monitor, I received an error saying that the files ProcessTable.sgrd and SystemLoad2.sgrd contain malformed XML. The resource graphs no longer appeared after the ...
2
votes
0answers
114 views

KDE - Problem with dark themes

Hello there Linux super users, I have a slight problem with my KDE Plasma 5.4 setup running on Kubuntu 15.10. Whenever I select a dark theme (in this case: KArc, the problem is the same for ...
2
votes
0answers
548 views

Kubuntu/Plasma(?) crashes on dual monitor setup

I'm using the latest Kubuntu /w Plasma. Usually I have one external monitor, which I connect to my laptop. Everything worked sort of fine (except of few restarts needed to get both displays working ...
2
votes
1answer
939 views

Testing if HL-340 works

I have Kubuntu 14.10 development workstation and recently I have bought a pair of QinHeng Electronics HL-340 USB-Serial adapter via eBay. HL-340 is USB<---->Serial adapter and it is recognized by ...
2
votes
1answer
4k views

How do I adjust kubuntu's maximum screen resolution?

I have seen multiple solutions to problems similar to this online, but not one that worked for me. I am kind of a Linux newbie. I am running Kubuntu 14.10. My screen resolution is currently at 1024 x ...
2
votes
0answers
171 views

Help troubleshoot a very slow system performance (Kubuntu, intel graphics) [closed]

As the title says the performance of my laptop is simply terrible. i3 M380 @ 2.53GHz, 4GB RAM (of which more than 2GB is rarely used), intel HD graphics (to external monitor through HDMI). It takes ...
2
votes
0answers
1k views

Docear on Kubuntu 12.04 64

I am running a 64bit version of Kubuntu 12.04 and I would like to run Docear (Some kind of research assistant) on it. The software is based on Java (which I had it installed) and has only a .sh file ...
2
votes
0answers
5k views

ssh-agent not getting set up (SSH_AUTH_SOCK, SSH_AGENT_PID env vars not set)

I set up a new user account for a friend on Kubuntu 12.04. When he uses ssh he gets this error: Could not open a connection to your authentication agent We're running ssh in some bash scripts. ...
2
votes
0answers
281 views

What caused this ext3 filesystem / mounting problem?

((K)Ubuntu 12.04, kernel 3.2.0-38-generic, fstype ext3) I recently came across the 'great idea' of using hibernation to save state in my main OS, while I boot another OS. I've done this without ...
2
votes
0answers
561 views

How to properly configure GRUB settings from KDE System Settings

I'm using Kubuntu 12.04 with KDE 4.10, and I recently installed the kde-config-grub2 that places a nice Grub configuration panel into KDE System Settings. I played around a bit, more for learning how ...
2
votes
1answer
453 views

How to customize logout options under Kubuntu

I'm running a machine with Kubuntu and Windows XP in dual-boot. I recently learned about the very useful grub-reboot command, and id like to know if it is possible to customize the logout options ...
1
vote
4answers
1k views

How to disable swap file after install or during Kubuntu install?

My computer has more than 64KB of RAM (8GB), if I run out of memory I want things to crash so I know I'm out of RAM so I'll buy some instead of say wandering why my computer is running slowly when I ...
1
vote
2answers
2k views

Tab auto completion doesn't work with apt-get install (kubuntu)

I've noticed a strange behavior of my shell on Kubuntu. Auto completion doesn't work well when I try to install new software. It works only for default commands (when I type "apt-get inst" and I press ...
1
vote
1answer
629 views

Bash script to detect a file modified yesterday and check if its size is above a certain threshold

I'm writing a script to stat all files in a directory, and then find specific files that were created yesterday and tell me if they are larger than a certain size or not. So basically I need this to ...
1
vote
1answer
1k views

Resume from hibernate fails after image restoration

I've been trying to get hibernation to work, and am having problems. The system seems to go into hibernation just fine, but when I try to restore from disk, the process stops just after a message ...
1
vote
1answer
2k views

Adobe Flash installed in Firefox, but not in Chromium, getting install error Error - AptUrl: The channel 'utopic-partner' is not know

I've installed Adobe Flash in Firefox succesfully and all works fine, but I cannot it get running under Chrome. If I try to install .apt Adobe Flash install file from Chrome, I get error in ...
1
vote
1answer
5k views

Make a “java -jar file.jar” run at startup

Hello I am running a kubuntu 13.10 distro, but I guess my question is pretty general...how to make a .jar execute in background at system start?
1
vote
1answer
684 views

How to make Nvidia Optimus work on Kubuntu 15.10

I thought it would install itself properly since it offered me Nvidia drivers after fresh system installation. It did not.
1
vote
1answer
68 views

Plymouth falling back to text boot animation

Ever since a kernel update and reinstalling the nvidia-346 package for the Nvidia proprietary drivers for my GPU, Plymouth has been reverting to using the text boot animation instead of the graphics ...
1
vote
1answer
37 views

How to run another installed system from within Linux?

I have Windows Server and Android X86 triple-booting with Kubuntu. How can I run either of them directly from within Kubuntu (without using virtual image files)?
1
vote
1answer
1k views

Dynamically change /etc/hosts

Each time I change my IP address I have to go edit /etc/hosts and change the line: myPc-Vaio 192.168.1.x I need this change for some programs I am using, so I can't just set the line to 127.0.0.1. ...
1
vote
1answer
17 views

swap windows with dash script

I have written a bunch of dash scripts that resize and move windows for better efficiency. The structure is the following: i have a row of 8 windows that are stacked to the bottom of my screen, like ...
1
vote
2answers
179 views

KDE with plasma 5 doesn't automount the partitions anymore on Ubuntu

Until recently, kde was autommounting all my partitions after I was logging in. But, after an upgrade (a few months ago), this stopped happening and now I use krusader to manually mount the patitions ...
1
vote
1answer
30 views

kubuntu 14.04 - do not show window in start panel when on another desktop

I use kubuntu 14.04 and I have configured 4 virtual desktop. When I go from a virtual desktop to another, I'd like to not see the programs opened on the first desktop on the start bar. Is it possible ...
1
vote
0answers
11 views

Edit commands for icon launcher

I am having an issue with Kompozer and as per a recommendation I am now launching it (from command line) with OXYGEN_APPLICATION_NAME_OVERRIDE=xulrunner kompozer. I was (previously) launching the ...
1
vote
0answers
933 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 ...