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2.5 System
In the following sections, find examples of how to configure some system
aspects of your GNOME desktop, like language settings, power management,
preferred applications, session and session sharing preferences, Beagle
search options, and audio preferences.
2.5.1 Configuring Streaming Audio and Video
With GNOME Control Center, you can configure which audio and video
plug-ins you want to use for streaming multimedia. To open this
application, click .
In most cases, you should use the default selections. However, if you
want to select other plug-ins, select the plug-in you want from the
menus. The tab lists the plug-ins for audio
input and output. The tab lists the video
plug-ins.
Click when you are finished. The system is
immediately configured to use the selected plug-ins.
2.5.2 Configuring Language Settings
SUSE Linux Enterprise Desktop can be configured to use any of many languages. The language
setting determines the language of dialogs and menus, and can also
determine the keyboard and clock layout.
You can set the following language settings:
To configure your language settings:
-
Click .
-
Enter the root password.
If you do not know the root password, contact your system
administrator. You cannot continue without the root password.
-
Specify the primary language, whether you want to adapt the keyboard
layout or time zone to the primary language, and any secondary
languages you need to support on the computer.
-
Click .
The language configuration settings are written to several
configuration files. This process can take a few minutes. The new
settings take effect immediately after they are written to the
configuration files.
2.5.3 Configuring Network Proxies
The Network Proxy Configuration tool lets you configure how your system
connects to the Internet. You can configure the desktop to connect to a
proxy server and specify the details of the server. A proxy server is a
server that intercepts requests to another server and fulfills the
request itself, if it can. You can specify the Domain Name Service (DNS)
name or the Internet Protocol (IP) address of the proxy server. A DNS
name is a unique alphabetic identifier for a computer on a network. An
IP address is a unique numeric identifier for a computer on a network.
Click .
For more information on the individual options, click
.
2.5.4 Configuring Power Management
The Power Management module lets you manage your system’s power-saving
options. It is especially useful for extending the life of a laptop’s
battery charge. However, several options also help to save electricity
when you are using a computer that is plugged in to an electricity
source.
Sleep mode shuts down the computer when it is unused for a specified
amount of time. Whether you are using battery or AC power, you can
specify the amount of time that the computer remains unused before it is
put to sleep. You can also put the computer’s display to sleep without
shutting down the computer, saving the power required by the display.
Sleep mode is especially important when the computer is operating under
battery power. Both the screen and the computer draw power from the
battery, so you can save a significant amount of battery power by
shutting down one or both. It is common to put the display to sleep
after a shorter period of time. Then, if the computer remains unused for
an additional amount of time, it is also put to sleep.
There are several sleep modes or actions you can set in the Power
Management module:
-
-
The computer does not shut down or automatically go into any kind of
power-saving mode. If you have a laptop, the laptop continues to run
normally when the lid is closed.
-
-
The screen is blanked, reducing power consumption.
-
-
Suspend mode turns off power-consuming computer components such as
the display and the hard drive without saving the contents of RAM.
Any unsaved data is lost.
-
-
The computer saves the contents of RAM to the hard disk, then shuts
down. When you turn the computer on again, the saved data is put back
into RAM, restoring your computer to the state it was in before it
shut off. requires an amount of free
hard disk space equal to the amount of RAM installed on the computer.
To open the Power Management module, click .
Specifying Your Computer’s Sleep Settings
-
Click the tab for the type of power you are using: if your computer
uses AC power, click . If your
computer runs on battery power, click . If your computer operates on both AC and battery
power, you can configure the settings on both tabs.
The settings you choose are in effect no matter which power source you
use.
-
Use the sliders to set the amount of inactive time that passes before
the display and computer go into sleep mode.
When the display is in sleep mode, the computer continues to run. When
the computer is in sleep mode, power to the display and hard disk is
shut off and the computer uses only the power needed to maintain the
contents of RAM.
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If the computer is a laptop, set the actions you want taken when the
laptop lid is closed.
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If you configure how a laptop manages battery power, configure the
action you want taken if battery power reaches a critical level.
Choose the option you prefer by selecting it from the menu. If you
have sufficient free disk space, is the
best choice.
-
If you want power management to prefer power savings over performance,
select the check box for that option.
If the check box is selected, the performance of some power-consuming
features, such as the display, is reduced slightly to reduce power
consumption.
-
On the tab, you can set further options,
for example the action to take when the power button is pressed, or
the sleep type to use when the computer is inactive. The options
available there depend on the type of computer you use (laptop or
other computer).
-
You can also define when and how to display the power icon in the
notification area.
-
When all options are set according to your wishes, click
. The options you selected go into effect
immediately.
2.5.5 Setting Preferred Applications
The Preferred Applications module allows you change the default
application for various common tasks such as browsing the internet,
sending mails or transferring data with FTP.
-
Click .
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Click the tab for the type of application you want to set.
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Select one of the available from the applications from the
menu or enter the command used to start the
application.
-
Click .
The changes take effect immediately.
2.5.6 Setting Session Sharing Preferences
The dialog box lets you
share a GNOME desktop session between multiple users and set
session-sharing preferences.
IMPORTANT: Sharing Desktop Sessions Affects System Security
Be aware that sharing desktop sessions can be a security risk. Use the
restriction options available. If you need to adjust the options to a
lower security level, do not forget to switch back to a higher security
level as soon as possible.
-
Click .
-
To share your desktop session with other users, activate
. All
keyboard, pointer, and clipboard events from the remote user are
ignored.
-
If you want or need to allow other users to access and control your
session from a remote location, activate . Click the highlighted text below to
send the system address by e-mail to a remote user.
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Make use of the security options available: if is activated, remote users require your
confirmation before they can connect to your session. To achieve a
higher security level, activate (if authentication is used).
2.5.8 Managing Sessions
This module lets you manage your sessions. A session occurs between the
time that you log in to the desktop environment and the time that you
log out. You can set session preferences and specify which applications
to start when you begin a session. You can configure sessions to save
the state of applications and then restore the state when you start
another session.
You can also use this preference tool to manage multiple sessions. For
example, you might have a mobile session which starts applications you
use most frequently when traveling, a demo session that starts
applications used to present a demonstration or slide show to a
customer, and a work session that uses a different set of applications
when you are working in the office.
Click .
Setting Session Preferences
-
Use the tab to manage multiple
sessions and set preferences for the current session.
For example, to manage multiple sessions, click
and enter a session name to create a new session. When you log in to
GDM, you can then choose which of the multiple session to use.
-
On the tab, you can modify options
for your current session. For more information on the individual
options, click .
-
On the tab you can add programs to
start automatically when beginning a session. Click
and specify the command that runs this
application. If you specify more than one startup application, use the
box to specify the startup order of the each
application. The commands are executed automatically when you log in.
You can also a startup application or
temporarily a startup application.
2.5.9 Setting Sound Preferences
The tool lets you control when the
sound server starts. You can also specify which sounds to play when
particular events occur.
Click to open the tool.
Use the tab to specify when to launch the
sound server. You can also enable sound event functions.
Click to start the
sound server when you start a session. When the sound server is active,
the desktop can play sounds.
Click to play sounds when
particular events occur in the desktop.
Finally, select the sound to play at each of the specified events.
Some applications play a beep sound to indicate a keyboard input error.
Use the tab to set preferences for the
system beep.
2.5.10 Configuring Administrative Settings with YaST
For your convenience, YaST is available from the Control Panel as well
as the Applications menu. For information about using
YaST, refer to Section I, Installation and Setup, (↑ Start-Up ).
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