Hi peepelz
I just installed the latest ISO with Mate DE on my secondary computer and despite me checking Auto log-in Endeavour always asks for my password when I boot up. Even after re-downloading and re-installing no joy. 
Something wrong with my ISO or was it an oversight by your Mate team?
Some help would be greatly appreciated.
Thank you
Itās a upstream calamares (the EndeavourOS installer) issue.
To set up autologin just follow these instructions on the ArchWiki.
Itās usually enough to add your username to lightdm.conf and reboot.
sudo leafpad /etc/lightdm/lightdm.conf
change the following line:
autologin-user=*username*
That didnāt work.
For all the rest Iām too much of a spazz, or too blind to even find all the lines they tell me to edit in the ArchWiki. See, Iām using Mate since 2013 and only today found out that I donāt have Leafpad but Pluma ā¦ and what it is and does. Guess this was the first time ever I had to use it.
autologin-user= username
Do you still have a space before āusernameā.
If yes, try it without a space. āautologin-user=usernameā
edit:
Also try the following commands inside the console. exchange username with your login user.
groupadd -r autologin
gpasswd -a username autologin
Thx very much for your help 2000 & IOF
Sorry again, canāt find groupadd in lightdm.conf and closing the gap in front of my top secret username didnāt help.
Are you using an NVIDIA graphics card by any chance? Thereās a know bug with autologin in Ubuntu with it, might be relatedā¦
Is this bug with Gnome / Mate only?
On KDE + Nvidia proprietary driver itās fine here 
Just searched for it and itās slightly different to what the OP reported so probably unrelated: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1845801
No NVIDIA on this laptop.
āIs this bug with Gnome / Mate only?ā
No idea, I only tried it with Mate. On my other desktop, where I did install from an older ISO version, it all works fine. This problem is only with 2020.07.15.
cat /etc/lightdm/lightdm.conf | grep -v "#"
For reference, hereās everything not commented in my .conf.
[Seat:*]
[LightDM]
run-directory=/run/lightdm
[Seat:*]
greeter-session=lightdm-gtk-greeter
user-session=xfce
session-wrapper=/etc/lightdm/Xsession
autologin-user=twok
[XDMCPServer]
[VNCServer]
Of course youād have to change xfce to mate, e. g. user-session=mate
Autologin after an EOS Install (XFCE only) has never worked for me. Iāve always needed to adjust lightdm.conf. Adding the username has then always worked for me. (?)
Sorry, missed your reply.
As @I0F noted you have to run the following in a terminal:
sudo groupadd -r autologin
sudo gpasswd -a USERNAME autologin
Change USERNAME to your actual username!
Unfortunately unrelated. 
They said they canāt even login with the correct password. But since my good gamer is in repair Iām on a mini Lenovo desktop without Nvidia and all is fine. Itās my stupid Acer mini laptop also on Intel HD graphix, on which I installed the latest version 2020.07.15, that asks for my pword every time I switch it on. :o
Its not inside the file. You run those commands in terminal.
groupadd -r autologin
gpasswd -a username autologin
two seperate commands that you will run in bash.
Didnāt work. I guess it canāt work since my laptop doesnāt know that itās me when I boot it. All my distros and even Endeavour, up to this ISO, have always done it perfectly. Particularly when I specified right during install that it should boot up without password.
Sorry for being such a pita but for me such stuff is important. Only hubby and me are using our computers, and we trust each other. In airports and restaurants I unpack the lappy, do my stuff on it and pack it away again. No danger of strangers ever logging in.
I donāt quite understand, sorry.
It doesnāt need to. It normally just autologins the user added to lightdm.conf. Of course that user must be an actual user on the system.
When I or my husband or just about anyone switches the computer on in the morning it boots up without a password. Thatās how all my computers work. I guess Iām the only registered user but my computers think itās always me. And that is what I want. And with 2020.07.15 it doesnāt work anymore.
I just installed the same ISO from the same USB drive on another desktop PC of mine. Same result: It asks for my name.
Now Iām gonna try it with another desktop, just to have used all options ā¦
Sorry to post this again, but if done correctly this should absolutely work on a newly installed system.
So, if youāre willing to try anew, after your fresh install, do this:
Terminal and run the followingsudo groupadd -r autologin
sudo gpasswd -a USERNAME autologin
Of course youāll have to use your username, e. g. āorcaā (sudo gpasswd -a orca autologin).
sudo leafpad /etc/lightdm/lightdm.conf
and change the following entries if needed ā¦
user-session=xfce
autologin-user=orca
Youād have to change xfce to mate, e. g. user-session=mate or to the Desktop Environment youāve installed.
On secondary desktop again, freshly installed EndeOS/Mate = No joy
Reinstalled with Cinnamon = No joy
Did again what 2000 told me = No joy
Pheew. Fortunately I have my trusty Endeavour running on my main machine ā¦ and will wait for the next snapshot before trying to reinstall it on any of the others.
Thx guys for all your help. This forum is indeed very friendly.
xoxo