Fixing Blank/Black Screen After Login When Changing Login Shell to Fish

General
1

If you recently changed your login shell to fish using ujust configure-shell and are experiencing a blank or black screen after logging in, there is a known issue with the SDDM display manager that causes this problem. Here are the steps I have personally usded to resolve it:

  1. Reboot your system and get to the login screen.
  2. Press Ctrl+Alt+F2 to switch to a virtual terminal (TTY).
  3. Log in with your username and password.
  4. Run the following command to change your login shell back to bash:

ujust configure-shell

  1. Press Ctrl+Alt+F1 to switch back to the graphical login screen.
  2. Log in as usual. You should now be able to access your desktop environment without any blank/black screen issues.

If you aren’t able to login immediately, restart and try and login again.

This problem seems to be related to a compatibility issue between the fish shell and the SDDM display manager, as reported in these GitHub issues:

Note: This tutorial is based on my experience with the Aurora (versions 39 and 40), but the steps should be similar for other distributions using SDDM and fish shell.

2

Do you know what the name of the sddm executable is on your system? I can’t find anything that looks related to it. But I can also imagine that sddm is only installed on Aurora while Bluefin uses GDM.

3

I don’t use gnome, so I don’t know if this would apply on Bluefin.

4

Yes, but what is the name of the sddm executable on your system? Once I know that, I can check if it is also running on Bluefin and investigate if my issue is related to yours.

5

Pretty standard,

/usr/bin/sddm
/usr/bin/sddm-greeter

1 Like
6

Thanks. Just for those who might stumble upon this later: These paths don’t exist on Bluefin.

7

ujust configure-shell is not available on bazzite-nvidia (f40- kde)