[Bug] plymouth theme animation broken when using linuxPackages_cachyos* kernels

[qweered]

What happens?

Animation is displayed only in last second on boot, it is static otherwise

What is expected to happen?

Animation displayed during all boot

If possible, please attach logs

N/A

More information

I am using this config for plymouth:

plymouth = {
      enable = true;
      theme = "nixos-bgrt";
      themePackages = [ pkgs.nixos-bgrt-plymouth ];
};

[qweered]

Full config for boot:

{ pkgs, ... }:

{
  security.unprivilegedUsernsClone = true; # Required for hardened kernel
  services.scx.enable = true;
  # TODO: enably cachy ananicy rules

  boot = {
    loader.systemd-boot.enable = true;
    loader.efi.canTouchEfiVariables = true;
    tmp.cleanOnBoot = true;
    # initrd.systemd.enable = true; # TODO: Not feature-complete yet https://blog.decent.id/post/nixos-systemd-initrd/

    kernelPackages = pkgs.linuxPackages_cachyos; # TODO: evaluate switching to hardened when using nix-mineral

    plymouth = {
      enable = true;
      theme = "nixos-bgrt";
      # TODO: replace with my own theme
      themePackages = [ pkgs.nixos-bgrt-plymouth ];
    };

    # Silent boot
    initrd.verbose = false;
    consoleLogLevel = 0;
    # TODO: configure more parameters
    kernelParams = [
      "quiet"
      "splash"
      "vt.global_cursor_default=0"
      "loglevel=3"
      "rd.systemd.show_status=auto"
      "rd.udev.log_level=3"
      "udev.log_priority=3"

      "boot.shell_on_fail"
    ];

    # Hide the OS choice for bootloaders.
    # It's still possible to open the bootloader list by pressing any key
    # It will just not appear on screen unless a key is pressed
    loader.timeout = 0;
  };
}

[PedroHLC]

Just to be sure: does it work with kernelPackages = pkgs.linuxPackages_6_12;?

[qweered]

I tested with linuxPackages_latest today on unstable nixpkgs, surely works

[qweered]

Same correct behavior with pkgs.linuxPackages_6_12

[s0me1newithhand7s]

haven't stumble across this problem:

╭──╼ s0mePC-nix on NixOS 25.5.0 ❄️  
┆ ~ 
╰─> uname -a                                                                                                                                                                                ✓  at ❗ 00:13
Linux s0mePC-nix 6.12.6-cachyos #1-NixOS SMP PREEMPT_DYNAMIC Thu Dec 19 17:13:24 UTC 2024 x86_64 GNU/Linux

&

[qweered]

@s0me1newithhand7s you didn't select theme

theme = "nixos-bgrt";

[s0me1newithhand7s]

@s0me1newithhand7s you didn't select theme

theme = "nixos-bgrt";

isn't "nixos-bgrt" and "nixos-bgrt-plymouth" are same? anyway - i'll try