KNOW HOW MIGRATION
Desktop customisation: part 2
TAILOR-MADE
DESKTOPANJA M WAGNER
Working with a graphical user interface only really starts being fun
once the settings have been adapted to your own preferences.
Under Windows, the principal configuration options 2.0.1. All but the details describing screen
for the desktop can be found in the Control Panel. resolution will be relevant to those using Linux
KDE, probably the most commonly used Linux distributions other than SuSE.
graphical interface, takes a very similar approach: The mouse and the keyboard each have their
you will find the important options for customising own section in the Windows Control Panel. The
your work environment in the KDE Control Center. KDE Control Center combines both under the
In this workshop we will show you in KDE how to Peripherals menu item. This hides a tempting
adapt the settings for mouse and keyboard, date setting for anyone changing from Windows to
and time, screen resolution and colour depth and Linux/KDE: Linux graphical interfaces are pre-set to
other personalised settings you will know from the allow you to open files and directories and to start
Windows Control Panel. We will also introduce you programs with a single click. This is convenient, but
to the KDE login manager. We will be referring to can almost drive dyed-in-the-wool Windows users
Windows 98 SE & Me and SuSE Linux 7.1 with KDE mad. So if you cannot live without the double-click,
Figure 1: To single or to double- Figure 3: The folder options are well
click, that is the question hidden within Explorer or My Computer
Figure 4: How to save thousands
Figure 2: The Windows 98 Control Panel only
of mouse clicks under Windows
understands the double-click
44 LINUX MAGAZINE 14 · 2001
MIGRATION KNOW HOW
Figure 6: Some things can only be done by the Superuser root
Figure 5: Date and time are concealed within System
disable the option Single click activates/opens on mouse button assignment. Under Advanced you
the General tab under Mouse. Now KDE will also can adjust mouse settings using sliders: pointer
expect a double-click. acceleration, pointer threshold, double-click root: One of the differences
But perhaps you should try it the other way interval, as well as start time and start distance for between Windows and Linux
around: after you get used to the single click in KDE, dragging with the mouse. that the migrating user is faced
change the setting in Windows. For Windows 2000 with immediately is the system
this is done via Control Panel/Mouse. On the Keys login. The reason: Linux is a
Timing
tab you can enable the option Open with single multiuser system whether it is
click (point to select). Windows 98 SE has hidden Just as the mouse is hiding within the Peripherals implemented as a network with
the single-click facility in the folder options. Open menu, the date and time settings are concealed many machines or as a single
the menu View/Folder Options in My Computer or under System in the left column of the Control computer for home use. Only
in Explorer. On the General tab enable the option Center. This is where you can change the day, the the system administrator
Custom, based on settings you choose and click month, the year and the time. There is nothing for root possesses all rights and
on Settings. There, in the section Click items as normal users to configure on the Time Zone tab. opportunities of amending the
follows select the option Single-click to open an Only the system administrator root can activate the operating system. During the
item (point to select) and confirm with OK. time zone selection list. If you click on the root installation of Linux at least one
Back to the mouse in the KDE Control Center. button, you are prompted for his password. The normal user must be set up in
The ability to Automatically select icons means that same applies for System/Login Manager this can addition to the system
files and directories whose icons come into contact also only be manipulated by the Superuser root. administrator. For day-to-day
with the mouse pointer are selected without work with Linux you should
clicking. Use the slider to specify how long the time always log in as a normal user,
Login
delay between contact and selection should be. because if your rights are
Even if you have enabled single click it is still To work with Linux, whether text-based at the limited you cannot damage the
possible to activate an icon without opening it if console or using a graphical interface, and system through carelessness or
you press the Ctrl key at the same time. irrespective of whether your computer is part of a inexperience.
No need for the left handers out there to despair network or a single machine, you must log on to
either, both KDE and Gnome let you swap the the system. You can design the appearance of the
Figure 7: A welcome from Kandalf, the wizard Figure 8: An ample choice of icons
14 · 2001 LINUX MAGAZINE 45
KNOW HOW MIGRATION
Figure 10: What
picture do yu want to
be?
Figure 9: Write your own greeting
graphical login using the Login Manager. part 1, Linux Magazine 13). The tab System/Login
By default, a clock appears in the left hand part Manager/Users allows you to select users who
of the login window. Alternatively, this could be an should not appear with a picture or icon during
application, action or device icon. In order to graphical login. All users who do not have an
change this, select Show KDM logo in the logo individual login image assigned to them are
section and click on the button with the logo. represented by the default icon of a black head in
Choose a logo from the dialog window that is now profile. This can be changed as well. Click on the
open, for example Kandalf, the wizard. You can find image and select a different one in the dialog
him under Other icons (Figure 8). Confirm with window Select icon.
Apply/OK. Under Sessions you can specify who is allowed to
The greeting above the small pictures or icons in shut down the computer (alternatively all users or only
the login manager can be changed using the the system administrator root) or whether shutdown
Greeting string text box. Since we are talking about is only possible using the text-based console.
the graphical login the individual images for Confirm all settings with Apply/OK, log out and
different users should be 48x48 pixel png files. have a look at the result of your entries.
Name them according to the respective users and
save the image files in
Let s get personal
/opt/kde2/share/apps/kdm/pics/users. They will then
appear automatically during the next graphical A number of important settings that are
login, and by clicking on the picture the name of the contained in the Windows Control Panel are
user is inserted into the User text box. combined under the menu item Personalization in
The remaining login manager tabs are used to the Control Center:
specify the font and size of the greeting and to
design the login background. The entries under Email refer to the
This works in the same way as designing the configuration of an email account in Outlook
background for the KDE desktop (see Workshop Express or Outlook. We will be dealing with this in
Figure 11: Set up new keyboard
Figure 12: Navigating the mouse pointer via the keyboard
46 LINUX MAGAZINE 14 · 2001
MIGRATION KNOW HOW
Figure 13: Changing screen settings via the Windows Control Panel
Figure 14: The long road to SaX
more detail in a future workshop on the subject of Layer) are enabled for the encryption of KDE
email clients. Internet transactions. SSL s successor, TLS (Transport
Layer Security), is also supported by KDE. Which
Under Country & Language you are already security and encryption standard is used does not
familiar with changing the settings on the Locale depend on the graphical interface or the browser,
tab. KDE pre-sets meaningful characters and but on the server on the other side.
values for Numbers, Currency and Time & Dates
according to the country selected. However, these Accessibility allows settings that make things
can all be changed. easier for people with physical disabilities. In addition
to acoustic warnings it is possible to configure visual
Use Passwords to specify, whether, and if so warnings. The mouse pointer is meant to be able to
which, characters will be displayed instead of the be navigated via the number pad keys. This did not
typed password during password entry. The work for our USB mouse however.
maximum length of time for which passwords
remains active once you have typed it, for example
Changing resolution
to access a control utility is 1200 minutes (20 hours).
After that you would have to retype the password to The Windows Control Panel and the KDE Control
access the features again. This stops you entering Center have similar approaches to many subjects.
the root password and it always remaining open. However, if you want to change the monitor s
screen resolution and colour depth, this is done in
During the installation you specify model and Windows under Display on the Settings tab. A drop-
layout of your keyboard. You can amend these down menu and a slider let you change your
settings under Keyboard Layout. For example, if you monitor settings quickly (Figure 13).
have newly acquired a natural keyboard, you can You will search in vain for this option in the KDE
select this in the Keyboard Model drop-down menu. Control Center. In order to make these changes you
need to start another tool. If you would like it to also
By default SSLv2 and SSLv3 (Secure Sockets have a graphical interface, choose SaX or SaX2. SaX
Figure 15: Dialog windows make configuration easier Figure 16: Monitor settings at a glance
14 · 2001 LINUX MAGAZINE 47
KNOW HOW MIGRATION
X Window System: An X window system,
normally abbreviated to X, consists of an X
server, X clients and a window manager. These
components provide the user with a graphical
user interface. Most Linux distributions allow the
configuration of the X window system during
the installation. An X window system is network
enabled, which means the X server does not
have to be running on the same machine as the
window manager and the clients, thus saving on
resources. For Linux on home computers all
modules are running on the same machine. The
X server administers the hardware and is
therefore attached directly to the graphics card.
An X client, say a program which wants to
display something on the screen, passes its
Figure 17: Everything is neatly sorted in the drop-down menus
information to the X server, which in turn passes
it to the window manager. KDE, Gnome,
stands for SuSE Advanced X Configuration Tool. The
Windowmaker and others are above all window
window manager (for example KDE) together with
managers. They control the appearance and
the X-Server, which sits directly on the graphics card,
behaviour of the windows and allow the
is responsible for making the Linux X-Window
creation and design of virtual desktops.
interface work. If your system uses Xfree86 4.0 you
must use SaX2 for the configuration.
You will find both of these tools under from 1024x768 to 1152x864 pixels: first of all,
K/SuSE/Administration/Configuration/SaX or SaX2. consult your monitor s manual to see whether it can
If you are not logged in as root, you will be cope with the resolution that you are planning to
prompted to enter the root password. It takes a use. If you are intending to change the settings for
while for the tool to start, as it reads in the data of the horizontal and vertical frequency ranges you
the existing configuration first. must comply with the instructions in the manual,
As you are going to change an existing otherwise the device can be damaged irrepairably.
configuration, namely the screen resolution and This is especially true of very old monitors; newer
colour depth, select Use/change existing ones tend to simply switch off when receiving
configuration in the first step. wrong signals.
SaX or SaX2 can also be used to adjust mouse, Open the resolution drop-down menu and
keyboard and graphics card settings. Click on activate the desired one with a mouse click
Next until you reach the Desktop Settings. There, (Figure 16).
click on Color or Resolution and then on the The textbox now contains the new resolution.
Settings button. Confirm with OK and Finish. Before saving, and
In the next dialog window you will find the thereby setting the new configuration, you ought to
properties you require on the Colors tab. Let s test it. Click on Start (Figure 18).
assume you would like to increase the resolution The test screen may seem familiar from the
installation of the SuSE distribution. Use the small
arrows to the right of the text box to select the
required resolution. The tool always offers the
lowest resolution as well. Move the test graphic to
its optimum position using the arrow buttons so
that the grey boxes at the corners of the desktop
are visible. To finish, click on Save configuration.
You can now exit SaX or adjust more settings.
The X window system configuration is held in the
file /etc/X11/XF86Config. Root is able to change
those settings manually there.
More Migration
Part 1 of this workshop can be found in Linux
Magazine 13, page 48.
This series will continued to bring you helpful
information on the migration from Windows to
Linux on a regular basis.
Figure 18: A new configuration should always be tested before it is saved
48 LINUX MAGAZINE 14 · 2001
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