Translations by Carlos Gong

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Open <gui>Universal Access</gui> and select the <gui>Seeing</gui> tab.

Switch <gui>High Contrast</gui> to <gui>ON</gui>.

Switch <gui>Large Text</gui> to <gui>ON</gui>.

<link xref="a11y#vision">Seeing</link>, <link xref="a11y#sound">hearing</link>, <link xref="a11y#mobility">mobility</link>, <link xref="a11y-braille">braille</link>…

The Unity desktop includes assistive technologies to support users with various impairments and special needs, and to interact with common assistive devices. Many accessibility features can be accessed from the <gui>Universal Access</gui> section of <gui>System Settings</gui>.

The GNOME desktop includes assistive technologies to support users with various impairments and special needs, and to interact with common assistive devices. Many accessibility features can be accessed from the accessibility menu in the top bar.

You can change how long you must hold down the left mouse button before it is registered as a right click. On the <gui>Pointing and Clicking</gui> tab, change the <gui>Acceptance delay</gui> under <gui>Simulated Secondary Click</gui>.

To right-click with simulated secondary click, hold down the left mouse button where you would normally right-click, then release. The pointer fills with blue as you hold down the left mouse button. Once it is entirely blue, release the mouse button to right-click.

Some special pointers, such as the resize pointers, do not change colors. You can still use simulated secondary click as normal, even if you don't get visual feedback from the pointer.

If you use <link xref="mouse-mousekeys">Mouse Keys</link>, this also allows you to right-click by holding down the <key>5</key> key on your keypad.

In the <gui>Activities</gui> overview, you are always able to long-press to right-click, even with this feature disabled. Long-press works slightly differently in the overview: You do not have to release the button to right-click.

Quickly turn slow keys on and off

Under <gui>Enable by Keyboard</gui>, select <gui>Turn on accessibility features from the keyboard</gui> to turn slow keys on and off from the keyboard. When this option is selected, you can press and hold <key>Shift</key> for eight seconds to enable or disable slow keys.

Quickly turn sticky keys on and off

Under <gui>Enable by Keyboard</gui>, select <gui>Turn on accessibility features from the keyboard</gui> to turn sticky keys on and off from the keyboard. When this option is selected, you can press <key>Shift</key> five times in a row to enable or disable sticky keys.

If you press two keys at once, you can have sticky keys turn itself off temporarily to let you enter a keyboard shortcut in the normal way.

This can also be useful if you're in an environment where you need your computer to be silent, such as in a library (see <link xref="sound-alert"/> to learn how to mute the alert sound).

Switch <gui>Visual Alerts</gui> on. Select whether you want the entire screen or just your current window title to flash.

A few tips on using the Ubuntu Desktop Guide.

This guide gives you a tour of Ubuntu desktop features, answers your computer-related questions, and provides tips on using your computer effectively.

The guide is divided into small, task-oriented topics - not chapters. This means that you don't need to skim through an entire manual to find answers to your questions.

Related items are linked together. "See Also" links at the bottom of some pages direct you to related topics.

The text input box at the top of this guide acts as a <em>search bar</em>, and relevant results will appear beneath it as soon as you start typing. Left-click on any result to open its page.

The guide is constantly being improved. Although we attempt to provide you with a comprehensive collection of helpful information, we know we won't answer all of your questions here. We will keep adding more information to make things more helpful, though.

Thank you for taking the time to read the <em>Ubuntu Desktop Guide</em>.

-- The Ubuntu Documentation team

Greg Beam

<link xref="accounts-add">Add accounts, </link> <link xref="accounts-remove">Remove accounts, </link> <link xref="accounts-disable-service">Disable services</link>

Online accounts

You can enter your login details for online services, such as Google and Facebook, into the <app>Online Accounts</app> application. This will let you access your calendar, mail, chat accounts, and similar applications without having to enter your account details again.

Connect to online accounts

Add an account

Adding an account will help link your online accounts with your Ubuntu desktop. Thus, your email, chat, and other related applications will be set up for you.

Select <gui>Online Accounts</gui>.

Select an <gui>Account Type</gui> from the right hand windowpane.

If you want to configure more accounts, you can repeat this process afterwards.

A small web user interface will open where you can enter your online account credentials. For example, if you are setting up a Google account, enter your Google username, password and sign in.

If you entered your credentials correctly, you will be prompted to accept the terms. Select <gui>Accept</gui> to continue. Once accepted, Ubuntu needs permission to access your account. To allow access, click on the <gui>Grant Access</gui> button. When prompted, enter the current users password.

Now you can select the applications you want linked to your online account. For example, if you want to use an online account for chat, but do not want the calendar, turn the <gui>calendar</gui> option off.

For security reasons, Ubuntu will not store your password on your computer. Instead, it stores a token that is provided by the online service. If you want to fully revoke the link between your desktop and the online service, <link xref="accounts-remove">remove</link> it.

Some online accounts allow you to use multiple services (like calendar and email). You can control which of these services can be used by local applications.

Disable account services

Some types of online accounts allow access to several services from a single user account. For example, Google accounts provide access to email, calendar, code, contacts, among others. You can choose Google for email and Yahoo! for chat, or any combination the service provider allows.

To disable services:

Select the account you want to change from left windowpane.

Services available for this account are listed in the right windowpane.

Switch off the services you do not want used.

Once a service has been disabled, local applications no longer have access to it. To regain access, go back into <gui>Online Accounts</gui> and switch it on.