You can use Horizon Client with external displays and you can change screen resolutions.

When you connect a client device to an external display or projector, Horizon Client supports certain maximum display resolutions. You can change the screen resolution used on the client device to allow scrolling a larger screen resolution.

Enlarging the Screen Resolution for a Remote Desktop

By default, the display resolution is set so that the entire Windows desktop fits inside the client device, and the desktop icons and task bar icons are a certain size. If you change the default to a higher resolution, the desktop still fits inside the client device, but the desktop and taskbar icons become smaller.

You can pinch your fingers apart to zoom in and make the desktop larger than the device screen. You can then tap and drag to access the edges of the desktop.

Changing the Display Resolution Setting

You can use the Resolution setting to set the display resolution to a larger value. If you are using a remote desktop or application in full-screen mode, tap the Horizon Client Tools radial menu icon, tap the gear icon, tap Display, and tap Resolution. If you are not using full-screen mode, Settings is in the menu in the upper-right corner of the Horizon Client toolbar. If you are not connected to a remote desktop or application, tap the gear icon in the upper right corner of the Horizon Client window.

Using High Quality Mode

You can use the High Quality Mode feature to obtain the best display quality in remote desktops and applications.

To enable High Quality Mode, before you connect to a remote desktop or application, tap the gear icon in the upper right corner of the Horizon Client window, tap Display, and then tap High Quality Mode. You cannot enable the High Quality Mode setting after you connect to a remote desktop or application.

The High Quality Mode feature has the following requirements and limitations:

  • You cannot use the High Quality Mode feature for existing sessions. You must log out and log in to a new session for the feature to take effect.

  • The High Quality Mode setting is not available if the Android device has less than an extra-high density (xhdpi) screen.

  • The High Quality Mode feature requires Horizon Agent 7.0.3 or later.

High Quality Mode is disabled by default.

Using External Displays

You can use the Enable External display setting to configure settings for external displays, such as projectors and attached monitors.

When the Enable External display setting is selected, you can select the Presentation mode, Multi-Monitor mode, Keep screen on when external display is connected, and Zoom settings. When the Enable External display setting is not selected, all of the external display settings are disabled.

In Presentation mode, a keyboard and expanded onscreen touchpad appear on the device when you display a remote desktop on an external display. The expanded touchpad and keyboard appear when you plug the device into the external display. The device detects the maximum resolution provided by the external display. The presentation mode feature is supported only if you have an Android 4.2 or later device.

You can use the Multi-Monitor mode setting to extend a secondary desktop on an external display. The Unity Touch sidebar is supported only on the device monitor. You cannot change the orientation and full-screen mode. You can interact with remote desktops and applications on the external display with the onscreen touchpad and full-screen touchpad. You cannot use the physical mouse on the external display. The multi-monitor mode feature is supported only if you have an Android 4.2 or later device.

You can use the Keep screen on when external display is connected setting to keep the display from turning off after a period of inactivity. You can drag the Zoom slider to set the resolution for the external display.

If you are connected to a remote desktop or application, pressing the Android Back button quits presentation mode or multi-monitor mode and the Enable External display setting is deselected.

To configure external display settings if you are using a remote desktop or application in full-screen mode, tap the Horizon Client Tools radial menu icon, tap the gear icon, tap Display, and then tap External Display Options. If you are not using full-screen mode, Settings is in the menu in the upper-right corner of the Horizon Client toolbar. If you are not connected to a remote desktop or application, tap the gear icon in the upper right corner of the Horizon Client window.

Do not use an external mouse, such as a Bluetooth mouse, when using the Presentation mode setting. Instead, use the large onscreen touchpad on the Android device. If you attempt to use a mouse, the mouse pointer might not be able to move to the bottom or right side of the screen, and when moved to the top of the screen, might conflict with some of the function keys shown on the large onscreen touchpad, rather than the top of the remote desktop.