Black screen on startup and broken gamemode (gamescope)

[hahelui]

Describe the bug

I'm experiencing a black screen after adding games from Lutris to Steam and installing Java on my Steam Deck. Here's a detailed breakdown:

Steps leading to the issue (uncertain):

    Added games from Lutris to Steam 
    Installed Java
    just casual things

Observed behavior:

    Black screen on Steam Deck boot

Requires manual intervention:

        Connect a keyboard
        Enter TTY mode
        Start Plasma manually with startplasma-wayland command

Game mode inaccessible:

        Attempting to return to game mode results in a black screen
        Workaround: Manually start game mode with gamescope-session-plus steam --user deck

Possible causes (uncertain):

    Gamescope
    Autologin script
    SDDM 

Request:

I'd appreciate assistance in identifying the root cause of this black screen issue and potential solutions to restore normal functionality, including automatic login to game mode.
Thank you.

What did you expect to happen?

No black screen , boot to steam gamemode

Output of rpm-ostree status

State: idle
Deployments:
● ostree-unverified-registry:ghcr.io/ublue-os/bazzite-deck:stable
                   Digest: sha256:4dbab257ebce893a30061b63e12f10403ea06d1c93c85e9d3d68bdf568c37859
                  Version: 40.20240508.0 (2024-05-08T22:06:35Z)
          LayeredPackages: java-11-openjdk plasma-workspace-x11 sunshine
            LocalPackages: p7zip-gui-16.02-28.fc40.x86_64

  ostree-unverified-registry:ghcr.io/ublue-os/bazzite:stable
                   Digest: sha256:17c4d692a912a1bbd81f9a81d9dfa6182cd31a867e601194e135751941fa4692
                  Version: 40.20240508.0 (2024-05-08T22:04:20Z)
          LayeredPackages: java-11-openjdk plasma-workspace-x11 sunshine
            LocalPackages: p7zip-gui-16.02-28.fc40.x86_64

Hardware

Jupiter

Extra information or context

Troubleshooting Attempts:
Moved the Steam directory .
Uninstalled DECKY LOADER.
Installed X11 .
Rebased on BAZZITE:STABLE.
...

[hahelui]

I'd also like to try resetting SDDM and Gamescope to see if it resolves the issue. Could you provide some guidance on how to do that safely?

[hahelui]

Switch to desktop from gamescope also dont work and stuck on 'switching to desktop...'

[KyleGospo]

Could be because you layered X11, try resetting your layers and see if this behavior persists.

[hahelui]

Could be because you layered X11, try resetting your layers and see if this behavior persists.

Thank you for the response,
how can I do that ?

edit :
I found out to reset layers is by using

rpm-ostree reset
or
rpm-ostree uninstall --all

but none of these fix the issue which is weird.