Lenovo PC 300GL Understanding Your Personal Computer 6267, 6277, 6287 - Page 23

Video Control, AGP Video Controller, Using Screen Savers, Video Drivers

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Using Screen Savers Leaving the monitor turned on for prolonged periods without changing the image can harm the monitor. Depending on what is on the screen, the image might be permanently burned into the phosphor coating or cause darkening of some areas of the screen. With DPMS-enabled monitors, you can avoid this problem by using the power-management features of your computer. Also, you can use a screen-saver program, which turns off the video signal when the keyboard or mouse has not been used for a defined period. This action results in a dark, blank, or animated screen. When you are ready to work with the computer again, pressing a predefined key or a password restores the image to the screen. Several companies produce screen-saver programs. For more information, contact your IBM reseller or IBM marketing representative. Video Control Video control is the process of manipulating information into the desired format and sending it to the monitor screen. Video control can be handled by the microprocessor or a separate video or graphics controller. For graphics and window environments, video control involves operations that handle a high volume of data and computations. These typically require a high degree of speed. Moving a window from one location to another, dragging an icon across the screen, and scrolling through a document are examples of such operations. AGP Video Controller Your computer comes with an accelerated graphics port (AGP) video controller integrated on the system board. It has a PCI-like interface dedicated to high-performance and 3D graphical display applications. AGP provides a high bandwidth, direct connection to system memory allowing the graphics controller to work independently of the microprocessor and PCI adapters, resulting is in an increase in overall system performance. Video Drivers The graphics controller in your computer is supported by device drivers that are provided on the IBM Software Selections CD that comes with your computer. Instructions for installing the device drivers are also provided in README files on the IBM Software Selections CD. If your computer has IBM-preinstalled software, the video device drivers have already been installed on the hard disk. However, the information included in the device-driver installation instructions will be helpful if you ever need to reinstall or update the device drivers, or if you want to change the video resolution or color depth. Video 15

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Using Screen Savers
Leaving the monitor turned on for prolonged periods without changing the image can harm
the monitor.
Depending on what is on the screen, the image might be permanently burned
into the phosphor coating or cause darkening of some areas of the screen.
With DPMS-enabled monitors, you can avoid this problem by using the power-management
features of your computer.
Also, you can use a
screen-saver
program, which turns off the
video signal when the keyboard or mouse has not been used for a defined period.
This
action results in a dark, blank, or animated screen.
When you are ready to work with the
computer again, pressing a predefined key or a password restores the image to the screen.
Several companies produce screen-saver programs.
For more information, contact your IBM
reseller or IBM marketing representative.
Video Control
Video control
is the process of manipulating information into the desired format and sending
it to the monitor screen.
Video control can be handled by the microprocessor or a separate
video or graphics controller.
For graphics and window environments, video control
involves operations that handle a high volume of data and computations.
These typically
require a high degree of speed.
Moving a window from one location to another, dragging
an icon across the screen, and scrolling through a document are examples of such
operations.
AGP Video Controller
Your computer comes with an accelerated graphics port (AGP) video controller integrated
on the system board.
It has a PCI-like interface dedicated to high-performance and 3D
graphical display applications.
AGP provides a high bandwidth, direct connection to
system memory allowing the graphics controller to work independently of the
microprocessor and PCI adapters, resulting is in an increase in overall system performance.
Video Drivers
The graphics controller in your computer is supported by device drivers that are provided
on the
IBM Software Selections CD
that comes with your computer.
Instructions for installing
the device drivers are also provided in README files on the
IBM Software Selections CD
.
If
your computer has IBM-preinstalled software, the video device drivers have already been
installed on the hard disk.
However, the information included in the device-driver
installation instructions will be helpful if you ever need to reinstall or update the device
drivers, or if you want to change the video resolution or color depth.
Video
15