I installed LXDM and LightDM, I couldn’t login from the DM in either cases, so I decided to run LXQt using startx which worked, except I couldn’t sudo from the terminal emulator inside LXQt, while I was able to sudo normally in tty, I’ve tried enabling elogind, nothing changed, my user is in the wheel group and my system is up to date
But what does. Be specific. Are you prompted on the CLI or is there a pop-up window that you’re entering credentials into?