# Banner Message

To show a specific message on the Desktop login screen, use the Hiera key `desktop::banner_message`:

```
desktop::banner_message: 'Good morning, this is a test banner message!'
```

Which then looks on RHEL8 like

![Banner Message on Login Screen](_static/banner_message.png)

The default is
```
Please contact the service desk (phone: 4800) in case you have problems logging in.
```

This is only implemented for `gdm` (default) and not yet for `lightdm` (rarely used at PSI)