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Questions tagged [sddm]

QML based X11 and Wayland display manager

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42 views

Unable to login !!! “Enter” key not working?

Ok hi there,I have been using Ubuntu Gnome 20.04 and I have insalled the KDE plasma environment on Ubuntu from help of the reference taken from You tube.Now after it had installed and restarts I get ...
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0answers
18 views

Can't login to SDDM/plasma while physically at the computer after accessing remotely with vnc

All of my searches for my title return results about logging in to SDDM over VNC - which works for me just fine - so I'm stopping here to ask. Here's my situation: I installed Ubuntu 20.04 Desktop ...
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1answer
241 views

Use Wayland session with Lubuntu 21.04 on Raspberry Pi 4B

I'm on a quest to find the best possible configuration for our Raspberry Pi 4B used almost exclusively to watch internet video streams. So far, I've tried getting the most out of Raspbian/Raspberry Pi ...
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1answer
134 views

Kubuntu 20.04 keeps perform black screen with NVIDIA

I have been trying Ubuntu 20.04 for two weeks. It worked well with NVIDIA graphic card. Then I tried to install Plasma Desktop. If I choose "gdm3" on installation, everything goes well. ...
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0answers
38 views

Custom install with ZFS Root for Neon (newer Plasma w/20.04 base), SDDM not starting up

So following these instructions to install Ubuntu 20.04 onto ZFS Root, I got KDE Neon installed (neon-desktop virtual package). Everything seems good, except when I boot up there's no GUI login. I ...
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1answer
78 views

LUbuntu 20.04 and tmporary user like guest?

How can I enable a restricted user where everything is reset after logout? Note: User is used for web-browsing so security is definitely a topic for me. In case user accesses maicious sites everything ...
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0answers
70 views

Kubuntu 20.04 lost sddm display

I've avoided posting this question for a month while I tried to find out on my own what had gone wrong, but now there is no other recourse. After running Kubuntu 20.04 for about a year on a desktop (...
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0answers
37 views

SDDM login does not showing users

Groovy Gorilla I am using it for a while sddm but yesterday I just noticed the desktop's users are no longer available. I did not customize any of sddm.conf. The other login Display Managers like ...
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0answers
37 views

sddm start problem

my sddm has problems while starting. systemctl status sddm: active (running) <- in green [no error message] sddm.log: [11:48:03.854] (II) DAEMON: Initializing... [11:48:03.858] (II) DAEMON: ...
1
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1answer
61 views

Bash script not running when I boot my laptop

I am new to Linux and I've set it up just how I want it. However, when I am using my laptop at home, login screen appears on both laptop and external screen. I want it to appear just on my external ...
1
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1answer
178 views

Lubuntu 20_04 GUI does not start, only terminal

Lubuntu 20 04 boots either in a "text mode" and says [ok] for Finished hold until boot process finishes up Started OpenBSD Secure Shell Server Finished Terminate Plymouth Boot Screen Or it ...
1
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1answer
424 views

Can not login to SDDM using fingerprint on Kubuntu 20.10

Recently I've bought Lenovo ThinkPad X1 Carbon Gen8. Everything seems fine except one thing - I can't fully configure fingerprint reader. I've followed guide https://askubuntu.com/a/1082465/249099 and ...
1
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1answer
341 views

Remembering Screen Brightness at Display Manager/Startup

With using linux on and off on different PC's through the years, one issue I have not been able to solve is the brightness setting during boot sitting at the Display Manager. I am running KDE version ...
5
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3answers
676 views

No more 'switch user' from sddm

I've searched extensively and there are many mentions of this problem but it seems only a few disparate users have had it over the last few months. But the 3 Kubuntu systems I upgraded to 20.10 all ...
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0answers
531 views

KDE Plasma login service failed - login loop in SDDM

When I log in to my laptop with Kubuntu 20.10, I enter the password and wait for the desktop window to load but it does not show and it returns me to the initial login window. I ran the test several ...
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1answer
76 views

System will not boot after sudo update and upgrade on 20.04 kubuntu

I am using kubuntu and used ubuntu studio add-on to get low latency kernel. After doing a sudo update and upgrade, the system stopped booting to the login screen. I am able to switch to tty2 and login ...
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1answer
228 views

What is the difference between GNOME desktop and Ubuntu in SDDM?

I installed Kubuntu on my machine, and then decided to try the regular GNOME desktop. Thus I installed ubuntu-gnome-desktop and logged in from the welcome screen running SDDM. This has been a ...
1
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1answer
595 views

sddm blocks screen with on-screen keyboard in Ubuntu 20.04

I have recently installed KDE 5 (kde-plasma-desktop) on Ubuntu 20.04, and as part of the installation, it asked me to switch the login screen manager to sddm. When sddm starts (either on boot, or ...
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0answers
387 views

Sddm login screen blank but active

I'm using KDE plasma with lightdm. I can boot my laptop without any problems. However, I can't change my login screen this way. So, my question is: Why am I getting a black screen at the login if I ...
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1answer
1k views

How to change SDDM login screen after sleep?

I tried looking at this question but it doesn't address my problem: How to change login screen sddm on KDE Plasma 5 I'm able to install new SDDM login screens (I'm using Kubuntu 20.04) using the ...
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0answers
38 views

Java Shutdown hooks on Lubuntu 20.04

I am using the following systemd service to shutdown a Java program gracefully when shutting down a PC running Lubuntu 20.04.1. The script in /usr/local/bin/pre-shutdown searches for all running Java ...
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0answers
219 views

sddm & ldap - ldap user not shown in Kubuntu 20.04.1

Ldap based users are not shown in the Kubuntu 20.04.1 graphical login screen sddm. While the local ones appear, the remote ones are only accessible under the button "other ...". I hope, this ...
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0answers
199 views

Failed to start lightdm (stuck on bootloop)

Currently I was using kde on ubuntu. But after trying to install cinnamon and lightdm, I can't start my OS. It is stucked on boot logo. And it's showing, "failed to start lightdm". I tried ...
11
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3answers
2k views

How do I set a picture for my user on the login screen in Lubuntu 20.04?

I would like to display an image of my choice instead of the grey icon above my username on the login screen: No doubt there is a setting for this somewhere, but I have failed to find it so far. How ...
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0answers
353 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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0answers
601 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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1answer
905 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 ...
1
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1answer
152 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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1answer
254 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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0answers
181 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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0answers
43 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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0answers
556 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 ...
1
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1answer
532 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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0answers
126 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
3k 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
144 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
4k 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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0answers
963 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 ...
5
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1answer
3k 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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0answers
3k 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
1k 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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0answers
791 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
1k 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 ...
0
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1answer
1k 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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0answers
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
652 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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0answers
178 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 (...
2
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1answer
1k 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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0answers
593 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
755 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 ...