Questions tagged [sddm]

QML based X11 and Wayland display manager

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35 views

SDDM Login theme error

When I try to use themes on the login screen, I get an error about qt.quickcontrols not being installed. It then uses some sort of default theme. Only the "Breeze" theme works.
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48 views

KDE login screen of wrong monitor

I have Kubuntu 20.04 LTS version. I have two monitors connected to my PC - primary one via HDMI and secondary via DisplayPort. Both have the same resolution. When I get the KDE login screen (sddm i ...
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62 views

Xserver/sddm keeps crashing on login screen

I've upgraded to (K)ubuntu 20.04 desktop with two screens attached and NVIDIA GPU. 01:00.0 VGA compatible controller: NVIDIA Corporation GP107 [GeForce GTX 1050 Ti] (rev a1) After auto-login (cca 5 ...
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177 views

How can I activate a virtual keyboard on the login screen of lubuntu 20.04?

everybody. I'm trying to get (a button or key of) a virtual keyboard on the login screen of lubuntu 20.04 with SDDM. I have a asus E205SA 2 in 1 laptop and I'm using it as a laptop and tablet. When I'...
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1answer
104 views

Every time restart Lubuntu terminal unable to init server, cannot open display

I did something related to ssh or display setting which I don't understand, now every time I restart the Lubuntu, terminal cannot open graphical application: chen@jesuslovesme:~$ gedit Unable to init ...
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37 views

Can't log in to KDE desktop anymore

This morning I find that I can't log in to my graphical desktop; it worked yesterday. Initially, I can do things like switch user etc, and if I enter a wrong password, I get the expected message; but ...
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1answer
81 views

How to color manage sddm login screen?

I'm using Kubuntu with sddm login screen. Currently, the monitor icc profile loads after login. I've tried "Install System Wide" in the colord system setting, but that appears to only make the profile ...
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229 views

Lubuntu 19.10 Username Field when Logging In

I just installed Lubuntu 19.10 to give it a test run. was able to do what i normally do, except add a username field when login comes up. I'm used to LightDM, setting "greeter-hide-users=true" Is ...
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1answer
138 views

sddm-greeter ignores HideUsers in /etc/sddm.conf

I'm using lubuntu disco with displaymanager sddm cat /etc/X11/default-display-manager /usr/bin/sddm On my system are 2 users the main one and a test account. I'll try to hide the test user in sddm. ...
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91 views

Sddm error multiple screens

login screen gets overlapped like in the image setup I've tried to put these lines in the /usr/share/sddm/scripts/Xsetup file but it doesn't work xrandr --output eDP-1-1 --mode 1920x1080 --pos 0x0 -...
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122 views

Sddm themes not showing

I have to theme my computer to look exactly like a mac. I've found the perfect sddm theme. it's called redrock. I can't seem to be able to change the theme in 18.04. default.conf does not exist ...
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28 views

sddm.conf and HaltCommand

I'm using Kubuntu 19.10. My goal is to power off the system only if rsnapshot is not running. So I need to setup up my own poweroff command and the first idea was to use sddm.conf file, HaltCommand=...
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392 views

Change login user for SDDM under LUbuntu 18.04

SDDM is a modern display manager for X11 aiming to be fast, simple and beautiful. It uses modern technologies like QtQuick to create smooth, animated user interfaces. However, my SDDM login ...
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1answer
170 views

How to have persistent session settings in SDDM for each user?

I use SDDM as session manager in Lubuntu 19.04. By default I got two desktops: Lubuntu and LXQt. I have two users. Each one uses a different desktop session. However, every time I switch users, the ...
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80 views

SDDM cannot display “Password expired. You must change it now”

I have ubuntu 18.04 with KDE 5 installed, using SDDM. I try to setup new user account on Kerberos and set the inital password expired, hence forced users to change password on the first login. The ...
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1answer
1k views

Replace xscreensaver locker with a better tool (sddm, gdm3) on Lubuntu (LXQt)

Upon logging in on Lubuntu 19.04 it is using sddm, but when the computer is idle too long and it goes into idle, when I go to log back in it is using xscreensaver(which I can't stand the look of). I ...
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1answer
102 views

Can I still run an older non-supported, non-LTS Lubuntu?

How long can I run Lubuntu 18.10? I have a program that was built by and for Python 2.7, which is no longer available in Lubuntu 19.04. Source: https://download.foldingathome.org/releases/public/...
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1answer
2k views

Enable Lubuntu 19.04 auto-login after installation

There is a guide here to disable auto-login after installation Lubuntu 19.04, but I couldn't find a way to enable it. The only information about how to enable/disable it is as follows, but there is ...
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230 views

Where is the $DISPLAY environment variable set in Kubuntu

Where is the DISPLAY variable configured in a normal Kubuntu 18.04 installation? I have a clean install of Kubuntu 18.04. I added vnc4server, but then accidentally started it for the first time as ...
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1answer
2k views

KDE 5.56 SDDM Login screen resolution on HiDPI FHD screen

OP on reddit Hi, I have a problem with Kubuntu 19.04 in my 13" FHD (1920x1080) laptop screen. The login screen is too small as was the whole Plasma KDE. I was able to re-scale the screen to 1.5 (...
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2k views

sddm issues: sddm.conf missing, 'sddm sddm-kcm' doesn't work, random baloo issues

System specs, formatted for readability. I'll add what plasma related packages I have at the bottom because it's quite long. [][]uname -a >Linux kublai-1888 4.18.0-15-generic #16-Ubuntu >SMP ...
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1answer
879 views

Kubuntu 18.04 not login from SDDM but from tty

I have installed Kubuntu 18.04 on my laptop (OMEN HP [17-w033dx ]) and today, just after enabling VT on the BIOS Setup and rebooting, Kubuntu not login from visual (SDDM) as usual. I disabled VT but ...
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603 views

How to enable guest account on Lubuntu 18.10 [SDDM]

It has been a default setting on most of Ubuntu flavors and it's fairly easy to do on LightDM, but I wonder if SDDM also has this option. If not, is it worth to completely purge SDDM in favour of ...
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1answer
734 views

x11vnc sddm systemd-service

My problem is, I cannot find the right solution for starting up x11vnc by systemd-service on kubuntu 18.04 with sddm display manager. With other Ubuntus and 'lightdm' or 'mdm' I had never problems. Is ...
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1answer
772 views

SDDM fails when PAM_MOUNT is used

I have a new install of Kubuntu 18.04.1, with user authentication via sssd to the company's Microsoft Active Directory. Every user has a Samba share on //fileserver6/$USER and I want to mount it at ...
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55 views

Help! I upgraded to Kubuntu 18.10 and now I'm stuck in a login loop [duplicate]

So I upgraded Kubuntu from 18.04 to 18.10, but when I reboot, I am stuck at the login screen. When I enter my password, it either freezes or goes black and takes me back to the login screen. I used ...
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1answer
426 views

Can’t login to GUI but can on tty

I use Kubuntu. I can’t login to GUI but can on tty mode, I check the log and it show this log: invalid session "/var/lib/sddm/.desktop" The output of journalctl -xe:
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164 views

Password typed in login manager appears as username in tty

The scenario I am asking about is this: when reaching the login screen after the boot process, I switch to tty2 and log in by typing my username and password. I then exit, getting back to the (...
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1answer
895 views

Kubuntu 18.04 no more GUI after upgrade from 17.10

I upgraded Kubuntu from 17.10 to 18.04 LTS today. Upgrade went well, until the system rebooted. I got the Kubuntu splash screen, but then: nothing. Black screen. I can however enter TTY 2-6 (1,7,8 not ...
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511 views

sddm does not propose desktop selection after upgrade to 18.04

The system was initially installed as Kubuntu 16.04 and upgraded to 18.04 using do-release-upgrade. After upgrade, sddm allows to log in only to Gnome session without providing alternatives. kde-...
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1answer
580 views

How to get SDDM themes working on Xubuntu?

My problem is the following : I'm on Xubuntu, and I use SDDM on xfce. I need to use SDDM because there is a theme I want to use on it, I've installed it in the right folder, changed SDDM.conf, and ...
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2answers
4k views

Ctrl+Alt+F7 doesn't switch back to X session in Kubuntu 18.04 Bionic

After I switch to virtual console using Ctrl+Alt+F6 I could not get back to X session using Ctrl+Alt+F7 - only blinking cursor is shown. Tried chvt - same result. Have to reboot and lost all my opened ...
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1answer
7k views

Wrong language displayed by SDDM on login Kubuntu 18.04

After hearing good things about KDE Plasma, I decided to give Kubuntu 18.04 a spin. I was impressed until it came to the long in screen. The biggest issue I had was the language of the date and time ...
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0answers
550 views

SDDM & KDE Plasma DE not starting

I updated a while back and after rebooting I was greeted with a black screen because of no SDDM being started properly. Naturally I dropped to a virtual terminal session and starting troubleshooting. ...
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1answer
357 views

Installing Kubuntu made Kodi dominate

About half an hour ago, I did apt install kubuntu-desktop, selected sddm as my new display manager, and rebooted. The standard, KDE-style login showed, but on logging in I found that Kodi immediately ...
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1answer
431 views

After uninstalling nvidia drivers Xorg does not start

After uninstalling nvidia drivers and existing (sudo killall Xorg) Xorg does not start any more. Running sddm & simply gives this in output and exits: Aborted If running Xorg manually I see ...
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1answer
2k views

Cannot login to SDDM but to tty

Summary On my kubuntu 16.04 I cannot login any more on the graphical login screen (produced by standard display manager SDDM). But when I switch to a tty I can login and start the graphical desktop ...
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1answer
232 views

Does stopping X server in Ubuntu 16.04 KDE have any negative effect while logged in?

I use Ubuntu mostly for file management on an older PC with KDE installed. I rarely need GUI, most things I do using SSH and Samba unless I am syncing files from my online accounts back and forth or ...
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1answer
1k views

Kubuntu 17.04: sddm shows only black screen with the cursor

After xserver-core upgrade: xserver-common:amd64 (2:1.19.3-1ubuntu1.1 -> 2:1.19.3-1ubuntu1.2) xserver-xorg-core:amd64 (2:1.19.3-1ubuntu1.1 -> 2:1.19.3-1ubuntu1.2) xmir:amd64 (2:1.19.3-1ubuntu1....
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296 views

KDE is now gray! Fonts in konsole app are broken

I just removed java 8 and after plasma restart fonts are broken, most of plasma apps changed white color to gray, taskbar is semi-transperent, context menu is gray. https://puu.sh/xFBco/123e0d1f82....
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1answer
655 views

Do not changed background on login screen

Kubuntu 16.04 amd64. Theme: Breeze Choose png-file with resolution 1600x900 (it's my notebook resolution), apply. But on lock screen still see default blue background. Why?
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1answer
534 views

Multiple parallel sessions as a single user

On my graphical desktop ubuntu computer, I can start multiple parallel sessions with the same user. Is this a bug? If it's a feature, what is the purpose behind it? To do this, I click on "New ...
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0answers
2k views

virtual keyboard in kubuntu, Plasma 5.10

I read several announcements that Plasma 5.10 will feature the qtvirtualkeyboard, an on-screen keyboard for devices that do not always have a physical keyboard at hand. I added the kubuntu backports ...
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2answers
8k views

How Can I Restore The Default Login Manager for KDE?

I recently installed the unity-desktop not knowing that it would change my login manager, and that KDE & Unity generally don't play well together. How can I restore the default KDE login manager ...
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1answer
722 views

Restart sddm and conserve session

Sometimes the graphics starts acting strange and I need to restart sddm. But when I do, a new user session is created and I lose what I was doing before. How can I restart sddm and log to the active ...
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0answers
529 views

Add guest user to SDDM (16.10)

I'm running Kubuntu 16.10 with SDDM and I would like to add a guest user. I've tried to run a script by modifying /usr/share/sddm/scripts/Xsetup, as suggested here, but for some reason the script is ...
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0answers
1k views

Can't unlock Lockscreen (sddm)

After a fresh boot I can login normally using SDDM. When I hit Ctrl + Alt + L to lock the screen (or after autologout) I can't login anymore, the SDDM login prompt just blinks. Currently I've to hit ...
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1answer
532 views

How can you change the user icon in sddm

I want sddm to display the user icon from ~/.face.icon (~/.face) like the kickoff application launcher does and not just the generic user icon. Is that possible?
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1answer
2k views

SDDM: How to run script as root on login and logout

I'm using Kubuntu 16.10. What are my options to run a bash-script after login and after logout as root using SDDM? I already tried switching to lightdm in order to create a /etc/lightdm/lightdm.conf ...
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1answer
47k views

How to change login screen sddm on KDE Plasma 5

I'm using Kubuntu 16.10 with KDE plasma 5 installed. I'd like to install and try new login screen with custom layouts. But I don't know how. Tried google,but didn't get what I want. Also I'd like to ...