Skip to main content

Questions tagged [kde]

KDE is a full featured desktop environment and collection of software for communication, work, education and entertainment.

Filter by
Sorted by
Tagged with
64 votes
8 answers
279k views

Why can't I run GUI apps as root: "No protocol specified"?

I installed Debian onto my machine last night. Now, I don't understand why I can't run GUI apps from a terminal when running as root. For example: sudo -i glxgears Generates the following output: No ...
Octopus's user avatar
  • 2,509
68 votes
7 answers
109k views

How can I set mouse sensitivity, not just mouse acceleration?

I can't find a single desktop environment that supports setting both mouse acceleration AND mouse sensitivity. I don't want any mouse acceleration, but I want to increase the speed of my mouse. That ...
David Gay's user avatar
  • 985
13 votes
3 answers
8k views

How can I run a kwin script from the command line?

I wrote a really basic kwin script to tile windows how I like them, // Main reference: http://techbase.kde.org/Development/Tutorials/KWin/Scripting // Top-level parameters. Adjust these as suitable ...
gatoatigrado's user avatar
3 votes
1 answer
36k views

How to remove all kde packages?

So I recently installed the kde packages, running the command apt install kde-full for installing the kde desktop environment, after test it a while I realize I didn't want it anymore so I remove the ...
Daniel Pérez's user avatar
29 votes
2 answers
54k views

What does LIBGL_ALWAYS_INDIRECT=1 actually do?

KDE SC 4.5.0 has some problems with some video cards including mine. Upon Release Arch recommended several workarounds. One of which was export "LIBGL_ALWAYS_INDIRECT=1" before starting KDE I ...
xenoterracide's user avatar
16 votes
1 answer
121k views

QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root' when running sudo commands

When running sudo commands such as sudo dolphin I'm getting this strange error: QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root' What does it mean and how can I fix it? I ...
mYnDstrEAm's user avatar
  • 4,370
15 votes
4 answers
15k views

Why does kdeconnect listen on port 1716/tcp all the time? How to close the port / secure it?

Zenmap shows me that port 1716/tcp is open and sudo fuser -v 1716/tcp tells me kdeconnectd is responsible for it. Why does kdeconnectd have the 1716 port opened all the time? And what would be best ...
mYnDstrEAm's user avatar
  • 4,370
13 votes
1 answer
2k views

Some apps doesn't accept some characters from the «Compose» key

The problem is that the compose key works fine, but some application doesn't accept some characters from it. E.g. I can type the character ∞ in Emacs (Compose+8+8), but this won't work in FireFox, ...
Hi-Angel's user avatar
  • 5,162
11 votes
2 answers
20k views

using sudo on GUI applications

When I was using kubuntu, I could always open X applications with sudo, sudo kate for example. Now that I've switched to arch that doesn't work. I know I've always been told to use kdesu, but what ...
Falmarri's user avatar
  • 13.1k
7 votes
3 answers
6k views

Why does KDE Accessible / the screenreader start automatically and how to prevent it?

I'm running Debian 9.1 with KDE and KDE Accessible / the screenreader keeps appearing from time to time for some reason. I'd like to know why that is and how to prevent it from starting. It's not ...
mYnDstrEAm's user avatar
  • 4,370
1 vote
1 answer
9k views

Remote desktop (KDE) over SSH reverse tunnel

I have a reverse ssh tunnel through a middleman server set up and working. I'm running Kubuntu 12.04 here and on the remote machine. I want to open a remote desktop session. Until now I've been ...
MountainX's user avatar
  • 18.1k
1 vote
1 answer
4k views

SFTP over reverse SSH tunnel?

I want to SFTP to a remote computer that is behind NAT. I can't modify the NAT router, so I have set up a reverse SSH tunnel using a middleman server. Here's what my SSH tunnel looks like: laptop---&...
MountainX's user avatar
  • 18.1k
0 votes
0 answers
681 views

Why are sessions breaking when starting from standby on Debian with Wayland? It shows a black screen with "the screen locker is broken"

Since I switched to Wayland on Debian11/KDE starting the computer from standby often shows a black screen with the notice that one should use ctrl+alt+f2 and loginctl unlock-session {id} (this text ...
mYnDstrEAm's user avatar
  • 4,370
0 votes
1 answer
727 views

Audio missing after upgrading from Debian 10 to 11

On one of my Debian 10/KDE machines, but not another with almost the same setup, the sound went missing during or shortly before upgrading to Debian 11. It disappeared in the tray bar and the machine ...
mYnDstrEAm's user avatar
  • 4,370
9 votes
2 answers
8k views

Linux slows down after long uptime

Occasionally I leave my openSUSE 13.1 64-bit system KDE-based up for a few days or even a week without a reboot. However, I notice after a night of idle standby the system gets very slow when I want ...
mabalenk's user avatar
  • 541
34 votes
2 answers
4k views

Multiple Keyboard Layouts and Shortcuts

I configured KDE to switch easily from a bépo (french-dvorak) to an azerty layout. I configured it with the KDE interface (systemsettings), but I guess it just call setxkbmap be and setxkbmap fr. The ...
Clément's user avatar
  • 378
28 votes
6 answers
17k views

KDE: how to get rid of IBus keyboard selector

Please, how to get rid of IBus service/IBus panel when running KDE? This Gnome(?) keyboard layout manager (?) can get into conflict with the layout set natively in KDE Settings. I need to switch ...
Espinosa's user avatar
  • 555
20 votes
5 answers
13k views

Run a dbus program in crontab , how to know about the SESSION id?

I need to run some program within crontab , but how can the program know about dbus session id ? it's only available for programs launched by session managers.
daisy's user avatar
  • 54.8k
20 votes
5 answers
36k views

KDE global menu disappeared in Plasma 5.12

I upgraded to plasma 5.12 and the global menus disappeared, and the entry in settings also disappeared. Application Style ⇒ Widget Style ⇒ Fine Tuning I tried deleting the plasma* files from ~/....
Nini Michaels's user avatar
15 votes
2 answers
3k views

How to switch pane in Dolphin using keyboard?

I'm a long time user of KDE Dolphin and love the pane mechanism. I know you can open/close pane using F3. However, I can't find a shortcut to switch from one pane to another like Pycharm, Tmux or ...
Édouard Lopez's user avatar
13 votes
2 answers
4k views

UTF8 math symbols & keyboard layout / input

I'd like to use UTF8 math symbols, when typing one list, another list. I've found something called ComposeKey. Unfortunately it's not covering omega, theta, right arrow etc. I am using KDE, I've ...
Grzegorz Wierzowiecki's user avatar
12 votes
2 answers
11k views

How can I set env variables so that KDE recognizes them?

I need to set some environment variables such as the XDG spec ones, before KDE starts in such a way that kwin and any apps run from KDE will inherit them. Where could I do this, and how?
xenoterracide's user avatar
12 votes
4 answers
3k views

Why does my desktop lock up when I copy lots of files to a USB drive?

My desktop is usually very responsive, even under heavy load. But when I copy files to a USB drive, it always locks up after some time. By "lock up", I mean: Moving focus from one window to another ...
Aaron Digulla's user avatar
12 votes
1 answer
25k views

How to change the default program for a chosen file type system-wide in kde or xfce?

I would like to have files of a chosen type (by their extension) to open with some specific programs. Which configuration files do I need to edit? I've tried some in /usr/share/appplications/default....
igor012's user avatar
  • 543
10 votes
1 answer
549 views

Screen doesn't always shut off on its own

It seems like when I have certain web pages focused, my screensaver will kick in, but the screen won't turn itself off. Does anyone have any ideas why this might be? Is there a way to disable whatever ...
xenoterracide's user avatar
9 votes
4 answers
35k views

Scaling the desktop - kde

I've just installed OpenSuse 13.2 on my xps13. The resolution is a whopping 3200 x 1800. Which causes the text to come up tiny... Any way for me to scale this without having to lower the resolution (I'...
dorien's user avatar
  • 333
8 votes
3 answers
3k views

KDE is not saving a mime-type file association

I'm running Arch Linux and KDE and I am exploring how mime-types are behaving (and misbehaving) on my system. Consider this mime-type file association. The following console output shows that I have ...
MountainX's user avatar
  • 18.1k
6 votes
2 answers
3k views

Clean way to run proper file manager from Firefox on Linux

As many of mans known, currently solution with defaults.conf and mimetypes.cache does not work. Firefox currently uses D-bus to activate service org.freedesktop.FileManager1 to handle "Open ...
Monah Tuk's user avatar
  • 163
5 votes
2 answers
3k views

Expand KDE activities concept to the shell

Sometimes, I use KDE, and one of the things that I like the most in KDE 4 is the activity concept. At work, it is very useful because I often work on several different projects during one day. ...
greg0ire's user avatar
  • 3,005
5 votes
1 answer
1k views

Where is /usr/share/applications/defaults.list on Arch?

Where is /usr/share/applications/defaults.list on Arch?
MountainX's user avatar
  • 18.1k
5 votes
2 answers
2k views

Suspending the global KDE&X-Windows keyboard shortcuts while specific application is running

I'm running KDE on Arch-Linux 64b. I've been a Vim user for two years now, and I want to try learning Emacs - just so I can have a justification when I diss Emacs users. So far, my main problem with ...
Idan Arye's user avatar
  • 503
4 votes
2 answers
7k views

Launching applications from a terminal with specific window size and location

I am running Linux Mint 13, with a KDE 4 desktop manager. I would like to launch applications from a terminal (konsole in my specific case) and setting the exact size of the window and the location of ...
Aeronaelius's user avatar
4 votes
3 answers
9k views

Where is the system-wide dark mode setting in Linux?

I'm using the Raspberry Pi version of Debian, which has both GTK and KDE programs, as well as bygone era programs like xpdf that still work just fine. If I wanted to tell apps that I prefer Dark Mode, ...
wudude's user avatar
  • 207
4 votes
2 answers
1k views

Changing hostname disturbs the system and DE's like KDE, Gnome, etc... What can I do to allow it anyway?

Long time ago I started to develop some kind of stealthmode-demon in c++. Part of this is to be only run as root and another part of it is, to change the hostname to a randomn generated one. I ...
icbytes's user avatar
  • 173
3 votes
3 answers
542 views

No longer able to input circumflex or diaeresis accented characters (qt5 apps only !)

Currently running KDE-Plasma-5.23.5 (X backend)/ KDE-Frameworks-5.90.0 / QT-5.15.3 I can assert that this used to work perfectly but am unfortunately unable to assert from which version of what the ...
MC68020's user avatar
  • 8,231
2 votes
1 answer
209 views

In KDE System Monitor, why the application-specific network measurements may be missing?

There are two systems running Plasma 5.27.7: Debian testing and openSUSE Tumbleweed. Under openSUSE, System Monitor tracks application-specific network activity, see screenshot: Under Debian, there ...
Anton K's user avatar
  • 341
1 vote
2 answers
19k views

Sddm is not starting but in theory everything is working!

It wasn't a long time ago when I decided to start an adventure with Linux. I started with a virtual machine (VMware workstation Pro) and everything worked fine. I've picked Debian 10.4.0 distro with ...
MyDefaultNickname's user avatar
18 votes
6 answers
22k views

How to stop the screen from blanking / blacking out?

I have re-installed Debian 7 (Wheezy) after a while. For the first time, I am using the open-free Nvidia drivers (not nouveau) and vesafb for virtual consoles. I cannot, for the life of me, stop the ...
Alex's user avatar
  • 436
17 votes
1 answer
80k views

"ModuleNotFoundError: No module named 'apt_pkg'" appears in various commands

I get the following error in various situations, for example when I try to start a package that is not installed: $ tldr Traceback (most recent call last): File "/usr/lib/command-not-...
Gal's user avatar
  • 571
15 votes
5 answers
29k views

Configuring mouse for right+left button simulating middle click (for copy/paste)

I was using the mouse copy-paste extensively, until recently, when some OpenSuSe upgrade reconfigured this on all my machines. Now the scrollbuton is the one to paste (which I hate, since it's hard to ...
Šimon Tóth's user avatar
  • 8,278
14 votes
7 answers
8k views

How do I move applications between KDE Activities?

How do I associate applications with KDE Activities? It doesn't seem obvious how it works. Are there any tricks?
xenoterracide's user avatar
14 votes
3 answers
13k views

Change default applications used by gnome-open, exo-open, xdg-open, gvfs-open and kde-open

How to change the applications associated with certain file-types for gnome-open, exo-open, xdg-open, gvfs-open and kde-open? Is there a way by editing config files or by a command-line command? Is ...
student's user avatar
  • 18.5k
14 votes
2 answers
26k views

How to reset KDE wallet password in linux?

I have installed OpenSUSE on my laptop. I am trying to connect to my wifi. I entered my wifi password (correctly) and then it is asking for my KDE wallet password. I set the KDE password but forgot it....
Suri's user avatar
  • 391
13 votes
2 answers
13k views

Kde Panel Launcher Files Location?

I was wondering where the files are located for Kde's panel launchers? I can't find anything online. I know where the regular desktop files are, (~/.local/share/applications/), but I can't find the ...
anacy's user avatar
  • 323
12 votes
2 answers
23k views

In application menu bar in KDE Plasma 5.12

I am using KDE Plasma 5.12. In the previous version of Plasma I could show the global menu for an application below the title bar (Settings > Application Style > Widget Style > Fine Tuning &...
reckless's user avatar
  • 243
12 votes
1 answer
3k views

How can I prevent Meta from opening up KDE Plasma's launcher?

When I press Meta, KDE Plasma's Application Launcher (Kickoff) opens. This occurs whether I tap the key, or hold it down for a long time. How can I prevent this from occurring?
Sparhawk's user avatar
  • 20.1k
11 votes
1 answer
2k views

How to give the same order for "OK" and "Cancel" buttons in KDE and GNOME applications?

I have installed some KDE and GNOME applications on the same computer. I use the applications at the same time. I find, I often hit the wrong button when I see "OK" or "Cancel" or "Yes" or "No" ...
Village's user avatar
  • 3,677
11 votes
2 answers
4k views

wmctrl-like tool or alternative for kde wayland

A big part of my workflow is based on using shortcuts. Currently I use xbindkeys and wmctrl to run-or-raise an application. E.g: Super+F brings up firefox or run it if not running. Autokey works fine ...
academo's user avatar
  • 169
11 votes
2 answers
1k views

Is is possible to use KDE as well as Gnome on a machine?

Is it possible to install KDE and Gnome on your machine (using Fedora) in such a way that when you boot, you can specify whether you want to use KDE or Gnome. Even better would be if you can switch ...
Lazer's user avatar
  • 35.5k
11 votes
3 answers
4k views

KDE: how do I make applications present on all activities by default

When I'm at work, I use KDE activities and map them to my projects. I always use the same applications on every project, so I'd like to keep my windows visible when I change the activity. For the ...
greg0ire's user avatar
  • 3,005