# Set up a video wall

A video wall combines several displays into one large picture, such as two TVs side by side in a shop window or four in a square. You create it under **Video walls**, assign content to the whole wall at once, and can dissolve it again at any time.

> **Type:** guide
> **For:** anyone who wants several displays to show one picture together
> **Prerequisite:** the Owner or Manager role. Each video wall is booked separately.
> **Where in the portal:** **Video walls**

## How a video wall works

On its own, each display shows the whole scene. On a video wall, the scene is spread across the whole surface, and each display shows its part. The surface is a grid of up to 4 × 4 tiles, and each tile counts as 1920 × 1080 pixels. The displays don't need to be connected to the same device.

![A scene is fitted into the shared surface of a video wall. The left display shows the left half, the right display the right half, and a display without a video wall shows the whole scene.](/displays/bilder/ff8aa8dc-video-wall-crop.svg)

Keep three things in mind before you build:

- All displays switch content at the same time, but videos are not frame-synchronized across the seam. Video walls work best with scenes, images, and calm transitions.
- Videos on a video wall play in the browser, which needs more power. Avoid very large videos on big grids.
- Every device needs a correct clock. **Clock out of sync** on one display affects the whole wall.

## Steps

### Create the video wall

1. Open **Video walls**. If it says **The video wall is not enabled yet**, click **Enable video wall**. If the booking is missing, the dialog offers to book it.
2. Click **Create video wall** and enter a name.
3. Set **Columns** and **Rows**, then click each tile and choose the display that hangs there. Tiles may stay empty.
4. Click **Create**. The portal confirms **Video wall created.**

![The Create video wall dialog with a 2 × 1 grid: the Name field with the placeholder Shop-window band (1), the Columns and Rows fields (2), the tile grid with the tiles still free (3), the Makes a surface of … pixels line (4), and the Create button (5)](/displays/bilder/1f47c9d2-create-video-wall-dialog.png)

You can also select several displays under **Displays** and choose **Combine into a video wall**.

### Assign content

1. Open the video wall. The card **What runs on this surface** replaces the assignment of the single displays.
2. Click **Assign program** and choose a program, scene, playlist, or file. It runs on all displays of the wall.
3. If the displays still show different things, click **Apply to the whole surface**.

For very wide walls, design scenes in the **Wide** format, which the template gallery offers for aspect ratios from about 21:9.

### Dissolve the video wall

Open the video wall, click **Dissolve video wall**, and confirm with **Dissolve**. The displays keep their seats and their last content, and each one shows the whole scene again.

## Check the result

The video wall's page shows how the displays sit next to each other, and below it **Displays of this video wall** with each display's status and picture. **All displays are showing** means everything is fine. Otherwise, the line names the display that needs attention.

## If something goes wrong

| Symptom | Cause | Solution |
|---|---|---|
| **The video wall is not enabled yet** | The video wall app isn't enabled. | Click **Enable video wall**. If you can't, ask someone who may manage apps. |
| **This video wall still needs to be booked** | There is no booking for this video wall. | Book it in the dialog. The booking appears under **Settings › Organization › Billing**. |
| A display is missing from the selection | It already belongs to another video wall. | Dissolve or change that video wall first. |
| A display shows **Part of a video wall** instead of its program | Content goes to the whole wall. | Assign the content to the video wall with **Go to the video wall**. |
| A video doesn't line up across the seam | Videos aren't frame-synchronized across displays. | Use scenes and images, or show the video on one display. |

## Related

- [Video wall](/apps/video-wall): the app that enables video walls.
- [How do you design content that people can read?](/content/design-content): the **Wide** format.
- [Packages, trial, and what you pay for](/billing/about-packages-and-seats): what a video wall costs.