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Update FAQ section about save file dialogs #687

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Update FAQ section about save file dialogs #687

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20 changes: 13 additions & 7 deletions docs/FAQ.md
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Expand Up @@ -56,16 +56,22 @@ Note that this applies to all DPF-based plugins and not just Cardinal.

## On BSD/Linux/X11 the menu item "Save As/Export..." does nothing

The save-file dialogs in Cardinal requires a working [xdg-desktop-portal](https://github.com/flatpak/xdg-desktop-portal) DBus implementation from your desktop environment.
Typically your desktop already provides this, if not consider looking for a package to install with "desktop-portal" in the name.
If you are running a window manager without a "real" desktop environment (like custom X11 or i3 setups),
you will need to manually activate the systemd unit that provides these DBus services, like so:
Cardinal relies on [xdg-desktop-portal](https://github.com/flatpak/xdg-desktop-portal)
for save file dialogs. Typically a desktop environment (DE) handles this,
lightweight setups without DEs may require extra work.

To make the dialogs appear, first install `xdg-desktop-portal` and one of its
backends (`xdg-desktop-portal-gtk` is a good default option). Then you'll need
to set up environment variables for portal to work, like this:

```bash
dbus-update-activation-environment --systemd DBUS_SESSION_BUS_ADDRESS DISPLAY XAUTHORITY
```
systemctl enable xdg-desktop-portal --user --now
```

Note: The open-file dialogs in Cardinal do not have this restriction, with a fallback in case the desktop portal is not available.
It's recommended that you add this command to `~/.xinitrc` so that runs
automatically every time you boot your system.

For further discussion, see [this issue](https://github.com/DISTRHO/Cardinal/issues/135).

## Why IRC and not Discord?

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