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Polkit Authentication Agents for Wayland (Sway/Niri)

If you find that entering your password in system settings (like Linux Mint's cinnamon-settings) has no effect or keeps asking for the password repeatedly, it's likely a Polkit agent environment issue.

Recommended Fix

Ensure your Sway/Niri config imports the environment variables before starting the agent:

# In your sway config:
exec dbus-update-activation-environment --systemd WAYLAND_DISPLAY XDG_CURRENT_DESKTOP=sway
exec systemctl --user import-environment WAYLAND_DISPLAY XDG_CURRENT_DESKTOP

# Then start/restart the agent
exec pkill polkit-mate-authentication-agent-1; /usr/libexec/polkit-mate-authentication-agent-1

Available Agents and Paths

Agent Package Common Path
MATE (Default) mate-polkit /usr/libexec/polkit-mate-authentication-agent-1
LXQt (Very Stable) lxqt-policykit /usr/bin/lxqt-policykit-agent
GNOME polkit-gnome /usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1
KDE polkit-kde-agent-1 /usr/lib/x86_64-linux-gnu/libexec/polkit-kde-authentication-agent-1

Troubleshooting

  1. No window pops up: Check if xdg-desktop-portal-wlr is installed and running.
  2. Password accepted but no action: Usually means the target application (running as root) doesn't know which WAYLAND_DISPLAY to connect to. The dbus-update-activation-environment command above fixes this.