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Questions tagged [sddm]

QML based X11 and Wayland display manager

SDDM is a modern display manager for X11 and Wayland aiming to be fast, simple and beautiful. It uses modern technologies like QtQuick, which in turn gives the designer the ability to create smooth, animated user interfaces. It is extremely theme-able.

Project Home Page: https://github.com/sddm/sddm

121 questions
23
votes
5 answers

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 after logging out) it blocks the screen with a large…
dave559
  • 528
16
votes
3 answers

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 do I change user images in the SDDM…
Zanna
  • 72,312
15
votes
2 answers

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 apps which is very inconvenient. Kubuntu version…
Dmitrii Vinokurov
  • 430
14
votes
3 answers

How to prevent auto-pausing processes in an inactive user session?

For a while now when I switch between two user sessions the inactive one in some cases will stop executing GUI processes. This way I'm forced waiting for another session to load and can't do something in another one, because if I switch and return…
int_ua
  • 8,892
9
votes
1 answer

SDDM login screen is broken after updating to Kubuntu 25.04 (plucky)

After updating from Kubuntu 24.10 (oracular) to Kubuntu 25.04 (plucky) the login screen is broken: The background is white instead of the usual wallpaper The bottom half of the screen is occupied by a gigantic visual keyboard (which can be hidden…
Stéphane Tréboux
  • 3,239
8
votes
1 answer

Which display manager should I choose when installing Gnome 3

When I was trying to install Gnome 3 on Ubuntu 16.04, just to get an experience, I got the below message. That dilemma forced me to search the site and found this and many others.Which display manager should I choose here? Is there a problem if I…
Nuwan Thisara
  • 2,522
7
votes
3 answers

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 have it now, so I'm surprised it's not a critical…
dargaud
  • 1,028
7
votes
1 answer

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 (150%) and now Plasma KDE looks great but the login…
Roey
  • 738
6
votes
1 answer

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 displayed on the “Login” and "Lock" screens. I am…
Mark Lines
  • 331
5
votes
1 answer

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 change that loading animation screen too. How…
Vishwa
  • 165
5
votes
3 answers

kubuntu 16.04 SDDM login screen hangs

After upgrading from kubuntu 15.10 to 16.04, the login screen hangs right after typing the (correct) password and pressing enter. The controls like the text field are disabled and brightness slightly dimmed, then nothing else happens. By switching…
Torsten Römer
  • 403
4
votes
1 answer

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 added auth [success=2 default=ignore] …
Dmitrii Vinokurov
  • 430
3
votes
2 answers

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 for Kubuntu 17.04? I believe that it is SDDM, but I'm…
Sarah Szabo
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  • 59
3
votes
1 answer

How to start another user session from CLI on SDDM?

Currently the only way I know of is KDE lockscreen, but I also use openbox sometimes and while doing so have no way of starting a second user session.
int_ua
  • 8,892
3
votes
1 answer

Upgrade from 15.10 to 16.04 now Simple Desktop Display Manager (SDDM) won't start

After upgrading from Ubuntu 15.10 to 16.04 via do-release-upgrade I can now only boot into TTY mode. The boot log shows: [FAILED] Failed to start Simple Desktop Display Manager. See 'systemctl status sddm.service' for details. Looking following the…
mikedavies-dev
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