Questions tagged [sddm]

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Manjaro / SDDM Login during typing

i have a strange but super annoying problem. Every time i start my pc i go to the login screen and start typing my password. In the middle of typing, i get the message "Login failed". So ...
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  • 101
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1 answer
26 views

how to reset debian 11 lxqt desktop configuration

I reinstalled my Debian 11 and try configure it but everything goes wrong. I need to reset it as fresh new. What i tried :- dconf-cli command replace user .config with root .config but things didn't ...
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11 views

Display manager not starting KDE. SDDM freezes machine at boot

This is my first post here so I apologize any inconvenience. After many attempts, I have sucessfully installed Arch and tested some DEs in a virtual machine. I tried GNOME with gdm and it went well. ...
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1 answer
102 views

Add XMonad to SDDM

I have installed arch and KDE. Now I want to test XMonad : I build XMonad with Stack (because for some import I need the source) I create the desktop file in /usr/share/xsessions/ with the right ...
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  • 111
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46 views

HDMI not working in debian bullseye on Lenovo P15v with nvidia driver

I have a new laptop and managed to install the proprietary nvidia driver version 470. Using the integrated screen works fine so far but attaching a screen to HDMI does nothing. It is not recognised. I ...
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  • 101
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1 answer
631 views

Cant get to SDDM login screen, startx works - KDE on Ubuntu server

A similar question was asked, but did not solve if startx is working: Sddm is not starting but in theory everything is working! echo 'exec /usr/bin/startplasma-x11' > ~/.xinitrc worked to make ...
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  • 312
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0 answers
69 views

Multimonitor with two graphic cards

Today I connected a second monitor to my PC (OpenSuse Leap 15.3 with KDE Desktop ). So far I had only one (Lenovo ThinkVision T27i-10) connected to my Nvidia GeForce GTX 660 and now I Connected a ...
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  • 1
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1 answer
352 views

KDE+SDDM won't launch Xorg can't find screen (EE) [closed]

So currently I am running gentoo in CLI, and wanted to install desktop enviroment. I followed gentoo wiki, but sddm seems not to work correctly: GENTOO MACHINE ~ # rc-service display-manager start --...
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1 answer
489 views

How do I change Fedora to SDDM from GDM?

I keep finding sources talking about changing the DM and DE using /etc/sysconfig/desktop but when I write this in the file, nothing changes: DESKTOP="GNOME" DISPLAYMANAGER="SDDM" ...
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1 answer
14 views

Can't drop down to virtual console. All I see are the system login/boot messages (like a bootup screen) - can't type anthing

Ctrl+Alt+F1 workedgave me access to the console before, now it shows me the boot up and login process messages ("started CUPS, network manager etc.) The funny thing is my graphical session works ...
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  • 163
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1 answer
537 views

SDDM error module org.kde.plasma.core not installed

I have installed KDE in the /opt prefix and when I try to use different themes in SDDM like breeze or Sweet-Mars I always get the error saying that the main module “org.kde.plasma.extras” and module “...
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111 views

KDE black screen after login, problem with Qt libraries

I am using a clean OpenSUSE Leap 15.2 installation with KDE. I installed a list of packages for an application I am developing which require a number of Qt5 libraries, and for it to work, I have to ...
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1 vote
0 answers
325 views

Can't see dwm in sddm on opensuse Leap 15.2

I installed dwm on opensuse leap 15.2 and was expecting to see it in the desktop session list, though it's not there. I see IceWM Session, Plasma,TWM, Plasma(FullWayland) and Plasma(Wayland) Is there ...
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2 votes
0 answers
1k views

Black screen and cursor in SDDM

I have just bought a new computer (with an Intel Core i9 10850K CPU, so a Intel UHD Graphics 630 CPGPU). It is shown here: $ lspci -v 00:02.0 VGA compatible controller: Intel Corporation Device 9bc5 (...
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2 answers
1k views

No GUI error after installing debian buster

I have installed Debian 10 on my laptop Dell Inspiron . But when booting first time into Debian, It directs me into the command-line interface, why? I am sure, I have chosen Graphical Install during ...
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1 vote
0 answers
231 views

In Debian, how can I keep X11VNC alive when I open KDE session

Using Debian 9 + X11VNC + KDE5 I have a script in /usr/share/sddm/scripts/Xsetup that runs x11vnc before sddm starts, so I can access the launcher with VNC. My problem is that the VNC connection is ...
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2 votes
1 answer
3k views

I want to able to run a script on login

I'm running KDE Manjaro. I have a background changer script which I want to run on login, but the thing is it doesn't do that. What I want it to do is run it every time I login doesn't matter how, ...
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0 answers
347 views

Logging in just returns me to the login prompt - sddm authorization file issue

I just upgraded to Fedora 32, running KDE. By default it seems SDDM is the login greeter. When I log in the screen flickers and I am immediately returned to the greeter login prompt. Switching to a ...
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  • 652
2 votes
1 answer
2k views

How to properly set environment variables for KDE?

I'm using Kubuntu v20.04, which I launch using SDDM. The issue I'm facing is setting some environment variables for my Xsession. I use ~/.config/plasma-workspace/env/env.sh to export my environment ...
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3 votes
1 answer
855 views

Display Manager isn't starting on fresh Debian 10 install

I just installed Debian 10 (amd64) on my desktop. During the install GUI I told it to install both the Gnome and KDE desktop environments, and when it asked me which desktop manager I wanted to use (...
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1 vote
2 answers
8k 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 ...
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1 vote
1 answer
182 views

What is this small dialog box in the picture? How to remove it?

I was configuring my KDE + i3wm hybrid setup and after adding a custom ~/.xsession(which is this commit), I keep seeing a small dialog box which appears after I enter a correct password. When I click ...
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1 vote
0 answers
351 views

Linux Mint 19.2 freezes and crashes when playing videos online

Can't play any video from the internet, no youtube, dailymotion etc. Tried playing youtube videos through vlc, same result. Sometimes, mint just crashes and reboots and most of the times it gets stuck,...
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  • 11
1 vote
3 answers
1k views

Where to put a command to be run when I log in to Lubuntu running SDDM?

I'm trying to set a wallpaper from the terminal. The script is: pcmanfm-qt --set-wallpaper=$(ls /home/$USER/.local/share/wallpapers/*/* | shuf -n1) This changes the wallpaper, but I want it to be ...
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0 votes
1 answer
4k views

Arch Linux: Stuck on boot screen (Reached target Graphical Interface)

Two days ago I did a system update with sudo pacman -Syyu Unfortunately, my battery was empty and my laptop turned off during the System update. When I tried to start Arch Linux again, I was stuck ...
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0 votes
1 answer
354 views

Can not login as root after installing zsh

I installed ZSH and made it the default bash for my kali linux system, then I rebooted the system, and I could not login as root any more. I type in the correct password and it says LOGIN FAILED. I ...
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0 votes
2 answers
4k views

Configuration file "/var/lib/sddm/.config/sddm-greeterrc" not writable is displayed when booting to KDE

I have KDE-Plasma on Arch. I recently changed my DE from Gnome to KDE because of some gdm issues. Everything is working great but while booting, a dialogue shows this prompt. Pressing Enter boots up ...
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1 vote
0 answers
26 views

Getting permanently connected TV that has multiple connections to only become a display device when tuned to the PC connection?

I've got a computer running Void Linux (so runit, not systemd), SDDM and KDE Plasma (wayland). It has two display devices permanently connected (back of PC is not readily accessible), a monitor on ...
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  • 21
0 votes
3 answers
2k views

log in to a desktop manager using commands typed on a different tty

Say a computer is booted to its desktop manager (SDDM, in this case) and you want to send a command over ssh to make that computer log in as a particular user as if they logged in with the keyboard at ...
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0 votes
1 answer
5k views

How do I change the login screen in Arch linux?

Well, I currently installed Arch Linux with the Desktop Enviroment KDE Plasma 5. But I don`t like the Login screen, so I want to change it. I installed the display-manager sddm. Does anyone know how ...
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5 votes
0 answers
664 views

Possible xorg memory leak

My problem in one picture : The memory usage of xorg as a child process of sddm keeps growing with time. Everytime I restart my computer, the problem reappears after a few dozens of minutes. I tried ...
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1 vote
1 answer
409 views

Fedora 29 graphical login screen (sddm) displays only virtual keyboard

I've upgraded from Fedora 27 to 29. The upgrade itself passed fine, just after final reboot, the graphical login screen (sddm) just flickered standard screen with users and then displays virtual ...
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0 votes
1 answer
1k views

CentOS 7 SDDM can't click GUI with mouse

I ran a fresh Minimal install of Cent OS 7. When finished, I run this command to get the GUI setup: yum -y install epel-release;yum update -y;yum groupinstall "Xfce" -y;yum -y groupinstall X11;echo "...
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0 votes
0 answers
2k views

How can I boot into KDE on Debian?

$ lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 9.8 (stretch) Release: 9.8 Codename: stretch $ /etc/X11/default-display-manager /usr/bin/sddm I am ...
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  • 163
2 votes
1 answer
212 views

What enables Alt+Click Window Dragging

I use Kubuntu 18.04 and I wonder what component implements the Alt+ Left Click drag. Does the Display Manager SDDM implement this, or is it the X Server, or is it something within KDE? I'm sorry I ...
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  • 123
10 votes
3 answers
2k views

How can I disable the poweroff and reboot button in sddm on Debian?

What I tried: I created the file /etc/sddm/sddm.conf (also tried /etc/sddm.conf) with the following content: [General] HaltCommand=true RebootCommand=true Unfortunately, that did not help - the ...
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  • 200
1 vote
0 answers
334 views

How can I switch users in NixOS?

I'm using the BSPWM window manager in NixOS, and using home-manager to handle the session. SDDM is my display manager. I can log in just fine, but I don't know how to switch users. On Arch, TTY1 (Ctrl+...
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  • 1,130
0 votes
0 answers
856 views

Kali Linux KDE not showing GUI for initial login [duplicate]

this is my first Linux OS, and I'm trying to get more acquainted with my environment. I've got Kali Linux KDE working well, but when I first start linux, it boots into the terminal screen for TTY1 ...
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  • 9
0 votes
1 answer
2k views

Unable to login to specific user under sddm on Arch

PROBLEM: Unable to pass beyond login screen (sddm) using correct credentials. WHAT HAPPENS: After boot to cli, I systemctl start sddm, it gives me the usual login screen. I click my user, enter ...
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3 votes
1 answer
479 views

sddm fails to ignore users

I'm running Arch Linux KDE. I would like SDDM to ignore certain users. However, even after adding the following config file, SDDM still displays all users. I tried both usernames and user ID's for the ...
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  • 15.5k
1 vote
1 answer
2k views

sddm slow to launch [duplicate]

Recently sddm has become very slow to show the login screen on Arch Linux. After I see the bootup message "Reached Graphical User Interface target" (or similar), there is a long delay of more than 10 ...
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  • 15.5k
3 votes
0 answers
333 views

SDDM starts with wrong screen size on LG 27UD68-W 4K Monitor

SDDM starts with wrong screen size: according to startup the screen size is set to 3840x2160 which is supported by the monitor but not supported by the graphic card (starting X server with a higher ...
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-1 votes
1 answer
1k views

Plasma 5 boots into a black screen after installing "kio-extras" [closed]

I have a fresh install of kde neon. I started having issues with the system. I couldn't open system settings. Shortcuts weren't working. Some applications weren't starting (like kolourpaint) and right-...
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0 votes
1 answer
1k views

Remove launch options from SDDM other than Plasma

I installed Kodi (Arch Linux KDE) and it inserted an option in SDDM to login directly to Kodi instead of logging in to Plasma as normal. How do I remove this? I see nothing relevant listed in /etc/...
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  • 15.5k
8 votes
1 answer
7k views

sddm shows a black screen only

I'm new to Arch Linux and wanted to use the plasma 5 desktop with sddm. I'm able to start the plasma desktop via startx without any issues but when I try to use sddm it only shows me a black screen on ...
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4 votes
5 answers
5k views

X is misrendering a rectangle around my mouse pointer

A square area around my mouse pointer is being rendered incorrectly. Instead of rendering the window it is supposed to render, it seems to be rendering the window underneath instead. It is very ...
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3 votes
1 answer
3k views

Change the font used in the Breeze SDDM theme

The default Breeze theme for SDDM on KDE uses default fonts from somewhere I don't know of. In earlier versions of KDE/SDDM, there used to be specific files in the SDDM themes where a font could be ...
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0 votes
3 answers
3k views

insserv: warning: script 'K07smfpd' missing LSB tags and overrides

osinfo : cat /etc/*-release ...
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1 vote
0 answers
941 views

Authentication issue in KDE - su, sudo, screen unlocking

I have the following issue with a fresh arch-linux installation: in KDE/plasma with SDDM neither su or sudo work. I tried to use them in both konsole and xterm. What does also not work is ...
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1 vote
1 answer
634 views

Does installing KDE also install sddm?

I have a machine running Linux Mint 17.3 with XFCE which I have just upgraded to 18. I have also decided to give KDE Plasma a try so I followed this guide to install it. However, I wasn't prompted to ...
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