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406.
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To change the \menu{Background}, either select \button{Wallpapers}, \button{Pictures Folder}, or \button{Colors and Gradients} from the drop-down list. When \button{Wallpapers} is selected, you will see Ubuntu's default selection of backgrounds. To change the background, simply click the picture you would like to use. You're not limited to this selection. To use one of your own pictures, click the \button{+} button and navigate to the image you would like to use. Then double-click the image, and the change will take effect immediately. This image will then be added to your list of available backgrounds. Selecting \button{Pictures Folder} opens your Pictures folder where you can choose a picture for the background. The \button{Colors and Gradients} button allows you to set the background to a solid or gradient color. Click on the \button{Solid Color} button, then the \button{Pick a Color} to choose a solid color. The \button{Vertical Gradient} and \button{Horizontal Gradient} buttons bring up two \button{Pick a Color} buttons. Just choose any two colors you like and see if you have achieved the desired result.
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Located in
./ubuntu-desktop/customizing-desktop.tex
:34
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412.
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Switch the \button{Auto-hide the Launcher} to either show the Launcher or reveal it when moving the pointer to the defined hot spot. When turned on, you can choose the reveal location \dash Left side or Top left corner \dash and the reveal sensitivity.
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Located in
./ubuntu-desktop/customizing-desktop.tex
:47
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419.
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Ubuntu has built-in tools that make using the computer easier for people with certain physical limitations. You can find these tools by opening the Dash and searching for ``Universal Access'' or by selecting \menu{Session Indicator \then System Settings \then Universal Access}. Use the \tab{Seeing} tab to manage the text size, the contrast of the interfaces, enable a zoom tool, or even a screen reader. Selecting high-contrast themes and larger on-screen fonts can assist those with vision difficulties. You can activate ``Visual Alerts'' through the \tab{Hearing} tab if you have hearing impairment. You can also adjust keyboard and mouse settings to suit your needs through the \tab{Typing} and \tab{Pointing and Clicking} tabs, respectively.
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Located in
./ubuntu-desktop/accessibility.tex
:14
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428.
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Logging out will leave the computer running but return the desktop to the login screen. This is useful for switching between users, such as when a different person wishes to log in to their account or if you are ever instructed to ``log out and back in again.'' You can also log out by pressing \keystroke{Ctrl+Alt+Del}. Before logging out, always verify that you have saved your work in any open application.
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Located in
./ubuntu-desktop/session-options.tex
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431.
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To save energy, you can put your computer into \emph{suspend} mode which will save the current opened applications to internal memory, power off all internal devices and hardware, and allow you to start back up more quickly. While in a suspended state, the computer will use just a trickle of energy; this is required because the session is saved to internal memory, and if no power goes to internal memory, the data will be lost. To put your computer in \emph{suspend} mode, select \menu{suspend} from the ``Session Indicator''.
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Located in
./ubuntu-desktop/session-options.tex
:20
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434.
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To reboot your computer, select \menu{Shut Down} from the ``Session Indicator'' and click the \button{Restart} icon.
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Located in
./ubuntu-desktop/session-options.tex
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437.
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To totally power down your computer, select \menu{Power Off} from the ``Session Indicator'' and click \button{Power Off}.
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Located in
./ubuntu-desktop/session-options.tex
:30
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440.
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From the ``Session Indicator'', select \menu{Lock/Switch Account} to either lock the screen of the current user or switch user accounts. You can lock your screen quickly by using the keyboard shortcut \keystroke{Ctrl+Alt+L}. Locking your screen is recommended if you are away from your computer for any amount of time.
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Located in
./ubuntu-desktop/session-options.tex
:33
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444.
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Like with any other operating system, Ubuntu has a built-in help reference called the \application{Ubuntu Desktop Guide} \screenshot{02-built-in-help.png}{ss:built-in-help}{The built-in system help provides topic-based help for Ubuntu.}. To access it, click on the Dash and type \userinput{Help}. Alternatively, you can press \keystroke{F1} while on the desktop, or select \button{Ubuntu Help} from the \menu{Help} menu in the menu bar. Many applications have their own help section which can be accessed by clicking the \menu{Help} menu within the application window.
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Located in
./ubuntu-desktop/getting-help.tex
:12
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447.
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If you can't find an answer to your question in this manual or in the \application{Ubuntu Desktop Guide}, you can contact the Ubuntu community through the Ubuntu Forums (\url{http://ubuntuforums.org}). To best assist you in solving the issue, it is best to provide as much information as possible when submitting your query, such as 'What were you doing at the time?' and 'What are you trying to achieve?'.
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Located in
./ubuntu-desktop/getting-help.tex
:16
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