Java Desktop System Release 3 Accessibility Guide

A.4 Enabling Full Screen Magnification

The following sections describe the methods to enable full screen magnification.

A.4.1 To Enable Full Screen Magnification Using Two Video Cards

To enable full screen magnification in Screen Reader and Magnifier using two physical video cards, perform the following steps:

Configure two video cards as :0.0 and :0.1.

Note –
It is not essential that both video cards have the same resolution and bit depth. However, if the resolutions and bit depths of both cards differ greatly, the apparent magnification factor may differ slightly from the nominal magnification factor.
Click Launch, then choose Applications -> Accessibility -> Screen Reader and Magnifier.
Click on Preferences in the Gnopernicus menu window.
Click on Magnifier to open the Magnifier Preferences dialog.
Click on the Add/Modify button to display the Zoomer Options dialog.
In the Display Screen section, type :0.0 in the Source text box.
In the Display Screen section, type :0.1 in the Target text box.
Set the Zoomer Placement values to be [0,0,1023,767].

Note –
These instructions assume a video resolution of 1024x768.
Click Apply and Close to close the Zoomer Options dialog.

The magnified view is displayed on the second display 0.1.

To enable full screen magnification on Linux systems using one physical video card and one virtual video card, perform the following steps:

Create a new section at the end of the file as follows:

Section "Device"
	Boardname "dummy"
	Driver "dummy"
	Identifier "dummy"
	VendorName "dummy"
EndSection

Copy the Monitor section and paste it at the end of the file.
In the new Monitor section, edit the Identifier line as follows:
```
Identifier "MonitorD"
```
Copy the Screen section and paste it at the end of the file.
In the new Screen section, edit the Device, Identifier, and Monitor lines as follows:
```
Device "dummy"
Identifier "ScreenD"
Monitor "MonitorD"
```
Edit the ServerLayout section to change the Screen line as follows:
```
Screen "Screen[0]" 0 0
```
Insert the following line in the ServerLayout section:
```
Screen "Screen[D]" RightOf "Screen[0]"
```
Save the /etc/X11/XF86Config file.
Restart the X Server.
Start the Screen Reader and Magnifier application.
Click on Startup Mode in the Gnopernicus menu window.
Select the Magnifier option in the Startup Mode dialog.
Click on Preferences in the Gnopernicus menu window.
Click on Magnifier to open the Magnifier Preferences dialog.
Click on the Add/Modify button to display the Zoomer Options dialog.
In the Display Screen section, type :0.1 in the Source text box.
In the Zoomer Placement section, set the value of the Left spin box to 0.
Click Apply.

The Screen Reader and Magnifier user interface is no longer visible.
Log out of your session.
Log in to a new session.
Enter the following command to start Screen Reader and Magnifier in full screen magnification mode:

gnopernicus -display :0.1
When you log out of your session, select the Save current setup option.