# Troubleshooting

## Flatpak

If `flatpak run net.zoite.Zoitechat` only prints `Gtk-WARNING **: cannot open display`,
collect extra diagnostics with:

```bash
flatpak run --devel --command=sh net.zoite.Zoitechat
```

Then inside that shell:

```bash
echo "DISPLAY=$DISPLAY WAYLAND_DISPLAY=$WAYLAND_DISPLAY XDG_SESSION_TYPE=$XDG_SESSION_TYPE"
xdpyinfo >/tmp/xdpyinfo.log 2>&1 || true
env G_MESSAGES_DEBUG=all zoitechat 2>&1 | tee /tmp/zoitechat-debug.log
```

To inspect sandbox permissions from the host:

```bash
flatpak info --show-permissions net.zoite.Zoitechat
flatpak override --user --show net.zoite.Zoitechat
```

If needed, try running with direct access to your active display stack:

```bash
# X11 sessions
flatpak override --user --socket=x11 net.zoite.Zoitechat

# Wayland sessions
flatpak override --user --socket=wayland net.zoite.Zoitechat
```

You can reset overrides after testing:

```bash
flatpak override --user --reset net.zoite.Zoitechat
```