LXQt autologin setup?

[psilospiral]

I have managed to setup autologin in Debian LXDE via /etc/lightdm/lightdm.conf - but that same file / directory structure does not exist in Debian 10 with LXQt. How do I setup a user to automatically be logged in after boot in Debian 10 - LXQt?

[arochester]

Which Display Manager are you using? LightDM? SDDM? Other?

[psilospiral]

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cat /etc/X11/default-display-manager
/usr/bin/sddm

[arochester]

But which Display Manager are you using?

https://wiki.debian.org/DisplayManager

[Head_on_a_Stick]

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cat /etc/X11/default-display-manager
/usr/bin/sddm

https://wiki.archlinux.org/index.php/SDDM#Autologin

[psilospiral]

I read the related info found at that link. It mentions autologin info can be added to /etc/sddm.conf.d/autologin.conf

A search of stock Debian 10 LXQt returns only a single file containing 'autologin': /etc/pam.d/sddm-autologin

So I

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cd /etc/pam.d/
sudo cp sddm-autologin sddm-autologin.bak

then determined what my session type(s) were with:

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ls /usr/share/xsessions
lxqt.desktop

then

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sudo nano /etc/pam.d/sddm-autologin

and added to the end:
# autologin
[Autologin]
User=psilospiral
Session=lxqt.desktop
^x, y [enter]

and rebooted, but was presented with the same prompt as usual - waiting on password entry.

[arochester]

https://wiki.debian.org/SDDM

[Head_on_a_Stick]

So I

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cd /etc/pam.d/
sudo cp sddm-autologin sddm-autologin.bak

Why did you do that?

Just create a file at /etc/sddm.conf.d/autologin.conf with the content listed in the ArchWiki page to which I linked and nothing else. The PAM stuff is probably breaking the configuration file.

[psilospiral]

Why did you do that?

So that if my attempt did not work, I could revert easily with:

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cd /etc/pam.d
sudo cp sddm-autologin.bak sddm-autologin

Which I did. Then created your suggested directory structure (/etc/sddm.conf.d does not exist on my stock Debian-LXQt) with:

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cd /etc/sddm.conf.d
bash: cd: /etc/sddm.conf.d: No such file or directory
sudo mkdir /etc/sddm.conf.d
cd sddm.conf.d
sudo nano autologin.conf

and added:

# autologin
[Autologin]
User=psilospiral
Session=lxqt.desktop

Then, ^x, y [enter]

Then I rebooted and was immediately logged in with no password prompt!

Thank you arochester and Head_on_a_Stick for your patience and help!

[psilospiral]

Below is the exact method I used to setup autologin at boot time for Debian LXQt.

This is tested and confirmed to work on both Debian 10 Buster and Debian 11 Bullseye:

# Determine your display manager

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cat /etc/X11/default-display-manager
/usr/bin/sddm

# Determine your session(s)

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ls /usr/share/xsessions
lxqt.desktop

# Make a /etc/sddm.conf.d/autologin.conf file and add info: (only for SDDM display manager)

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cd /etc/sddm.conf.d
bash: cd: /etc/sddm.conf.d: No such file or directory
sudo mkdir /etc/sddm.conf.d
cd /etc/sddm.conf.d
sudo nano autologin.conf

# Add to the file:

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# autologin
[Autologin]
User=[insert the desired user name here]
Session=lxqt.desktop

# ^x, y [enter]
# reboot to test!