Arch Linux

hoppyhopps

Member

Registered: 2024-08-03

Posts: 13

Plasma Login Manager hangs after signing in, never reaches plasma

As per the subject, after entering my credentials to sign in, Plasma Login Manager simply hangs. If I enter another tty fast enough, it will unfreeze and go back to just the "login"

Starting a plasma session from a tty works normally.

I did add the nvidia modules to my mkinitcpio.conf, thinking perhaps early module loading may help, but it's seemingly made no difference.

Oddly, logging in worked totally normally yesterday after a fresh install.  I did a few reboots while testing, and changing settings, and it always logged in normally, it wasn't until this morning that this issue occurred.

Maybe worth noting, it is an AMD + Nvidia GPU, with an AMD iGPU.  I do not have the xf86-video-amdgpu package installed, I don't know if that could help with the AMD iGPU being the default when the system is not under load.

If there's any other information I can try to hunt down or anything I can share that would help let me know.  Very unfamiliar with troubleshooting display manager issues like this, especially on a laptop.

Last edited by hoppyhopps (2026-08-09 14:37:45)

mokuren

Member

Registered: 2025-02-23

Posts: 12

Re: Plasma Login Manager hangs after signing in, never reaches plasma

I would try starting out by checking out your logs after attempting a log-in. Try to log in, go to tty, login, and run

 journalctl -b -e 

This will show you your current boot and go to the end of the logs, which means it will show the most recent outputs. You may be able to identify some errors there, if you'd like you can post that output.

If the output is a little overwhelming you can try to use grep to narrow it down. The service that runs is called plasmalogin, so you can try

 journalctl -b | grep plasmalogin 

I would definitely recommend having your drivers for the iGPU installed, unless you've gone through the process of ensuring everything will run with your dedicate GPU.