Nixpkgs version
Describe the bug
After the staging-next 2025-11-02 merge (which contains a GNOME 49 bump), the tasklist plugin in xfce4-panel no longer shows icons for me in Xfce X11 session.
xfce4-panel -q; xfce4-panel shows these warnings but I believe xfce4-panel is already wrapped.
(xfce4-panel:9713): Gtk-WARNING **: 20:22:06.850: Could not load a pixbuf from icon theme.
This may indicate that pixbuf loaders or the mime database could not be found.
Steps to reproduce
Start the following VM on 1b0090a, login with test/test:
{
inputs.nixpkgs.url = "github:NixOS/nixpkgs/1b0090a49387aa976b25877614820644b68df07a";
outputs = inputs@{ self, nixpkgs }: {
nixosConfigurations.vm = nixpkgs.lib.nixosSystem {
system = "x86_64-linux";
modules = [
({ pkgs, ... }: {
imports = [ "${inputs.nixpkgs}/nixos/modules/virtualisation/qemu-vm.nix" ];
services.xserver = {
enable = true;
desktopManager.xfce.enable = true;
};
users.users.test = {
isNormalUser = true;
uid = 1000;
extraGroups = [ "wheel" "networkmanager" ];
password = "test";
};
virtualisation = {
qemu.options = [ "-device intel-hda -device hda-duplex" ];
memorySize = 2048;
diskSize = 8192;
};
system.stateVersion = "25.05";
})
];
};
packages.x86_64-linux.default = self.nixosConfigurations.vm.config.system.build.vm;
apps.x86_64-linux.default = {
type = "app";
program = "${self.packages.x86_64-linux.default}/bin/run-nixos-vm";
};
};
}
Expected behaviour
See screenshots below.
Screenshots
Expected:
System metadata
Nixpkgs 1b0090a.
Notify maintainers
@NixOS/xfce
Note for maintainers: Please tag this issue in your pull request description. (i.e. Resolves #ISSUE.)
I assert that this issue is relevant for Nixpkgs
Is this issue important to you?
Add a 👍 reaction to issues you find important.
Nixpkgs version
Describe the bug
After the staging-next 2025-11-02 merge (which contains a GNOME 49 bump), the tasklist plugin in xfce4-panel no longer shows icons for me in Xfce X11 session.
xfce4-panel -q; xfce4-panelshows these warnings but I believe xfce4-panel is already wrapped.Steps to reproduce
Start the following VM on 1b0090a, login with
test/test:Expected behaviour
See screenshots below.
Screenshots
Expected:
System metadata
Nixpkgs 1b0090a.
Notify maintainers
@NixOS/xfce
Note for maintainers: Please tag this issue in your pull request description. (i.e.
Resolves #ISSUE.)I assert that this issue is relevant for Nixpkgs
Is this issue important to you?
Add a 👍 reaction to issues you find important.