7.2 S3 ScreenToys Device Management Display Settings ACCESS: The Display Settings Display Configuration page is accessible from the Options dropdown list on the right display device area of the Device Management page. OPTIONS: Display Settings This page is similar to the Display Settings page provided by the operating system.
Discussed below are those controls which are available on the S3 ScreenToys Display Settings page but which are not available on the OS Display Settings main page are: Desktop layout radio button Refresh rate selection dropdown list Extend Desktop layout There are three radio buttons provided as an aid to relative positioning of the multiple displays in an extended desktop configuration: Select Horizontal to arrange the desktop in a horizontal row with the Primary display (1) positioned on the left and the
Refresh rate… From the Options dropdown list, select Display settings… Near the lower right corner, click the Refresh rate… dropdown list to select a refresh rate from the available refresh rates for the display device icon outlined in blue which represents the current output display device. The operating system will test the selected refresh rate and you will have the option to accept or decline the change. User Guide for Chrome 400 Series Graphics SG192-C.
7.3 Fine Tuning CRT When your display device is detected as a connected and active CRT, you can configure the CRT using the S3 ScreenToys Device Management page. Adjustments you make are remembered by the S3 Graphics software even when your system is sleeping or rebooted. ACCESS: To adjust CRT, right click on the desktop and click from the menu to select S3 ScreenToys. In the left menu column, select Basic, Device Management. In the Display Devices area, click the CRT icon.
Device Settings: CRT model info & settings area Size The Device Settings title row will report the manufacturer name and model detected for the selected display device. The following options may be available for adjustment for the selected CRT. NOTE: If using multiple monitors, you must exit Extended desktop mode for these settings to be available. The Size controls allow you to increase and decrease the horizontal and vertical size of the display image.
Refresh rate… Click the Refresh rate… button. The CRT Properties Screen Refresh Rate window will appear. Select a refresh rate from the dropdown list of available refresh rates for the current output display device. Click Apply to apply your change. The operating system will test the selected refresh rate and you will have the option to accept or decline the change.
.4 Fine Tuning DVI When a DVI is detected as connected and active, you can configure the DVI using S3 ScreenToys Device Management page. Adjustments you make are remembered by the S3 Graphics software even when your system is sleeping or rebooted. ACCESS: To adjust DVI, right click on the desktop and click from the menu to select S3 ScreenToys. In the left menu column, select Basic, Device Management. In the Display Devices area, click the DVI icon.
selected DVI device. For example, if the Expansion options are dimmed or do not appear, then the expansion options listed below are not configurable for this DVI device instance at the current resolution. Panel Type Details the physical size (in pixels) and panel type of the device selected. Display Scaling image icon The icon shows an example of the currently checked Display scaling option.
Preserve aspect ratio Select the Preserve aspect ratio checkbox to ensure the desktop image always maintains its original aspect ratio, or relationship between the horizontal and vertical size (in pixels). For example, if you have a wide screen panel you might choose not to maintain the aspect ratio and thereby allow the S3 Graphics hardware and software to horizontally expand the image to fit the wide panel size. Refresh rate… Click Refresh rate… to launch the S3 Graphics Screen Refresh Rate window.
7.5 Fine Tuning HDMI When an HDMI display device is detected as connected and active, you can configure HDMI using S3 ScreenToys Device Management. Note: HD Audio must also be configured to ensure a satisfactory sound and video synchronization. See Fine Tuning HD Audio for detail. ACCESS: To adjust HDMI, right click on the desktop and click from the menu to select S3 ScreenToys. In the left menu column, select Basic, Device Management. In the Display Devices area, click the HDMI icon.
HDMI Mode dropdown list HDMI Mode is a dropdown list of available HDMI Formats. This list is dynamically generated information processed by the driver from data specified in the HDMI monitor’s information. The driver also prunes the list to those formats which do not exceed the graphic board’s available digital interface bandwidth. Note: If you have a 16:9 wide screen device, 4:3 formats will appear on your screen with black areas on the left and the right of the screen.
Select the Center 1:1 list item to have S3 Graphics software use the GPU upscale hardware to center the display but do not do any upscaling. Note: If you have set and saved a Custom Mode for this device, the Custom Mode will be used, regardless of the current Display scaling setting. Auto Mode checkbox (Windows XP only) The Auto Mode checkbox allows you to let S3 Graphics software own the selection of the optimized mode for your HDMI-output.
color depths of 24-bit and above. YCbCr 4:4:4. It can be used for color depths of 24bit and above, and may provide greater color sampling. YCbCr 4:2:2. This format is not supported for color depths greater than 24-bits. Advanced… Click the Advanced button to open the HDMI Options page. 7.5.
Refer to the Video Enthusiast section for additional information about ChromoVision. Overscan note The Options page includes text advising the user that they may have the option to set a custom resolution for their display. Default: This area provides the default resolution for your HDMI device. Click the Define custom mode… button to open a dialog window which allows you to customize your HDMI desktop size.
desktop resolution adjustments. Additional video sizing adjustment control is usually available through the video quality controls built into the HDMI itself. Preserve aspect ratio Select the Preserve aspect ratio check box to ensure the HDMI image always maintains its original aspect ratio (proportional relationship) between horizontal and vertical size.
7.5.2 HD Audio Microsoft Windows Vista includes an HD Audio software driver. After the installation of the S3 video driver, S3 HD Audio will be available for selection as the default audio device. If the video driver is removed, then HD Audio will not be available. Note: If your video board does not include a connection for HDMI, your board probably does not support HD Audio.
7.6 Fine Tuning LCD When the mobile system’s LCD panel is detected as connected and active, you can configure the LCD using the S3 ScreenToys Device Management. Adjustments you make are remembered by the S3 Graphics software even when your system is sleeping or rebooted. ACCESS: To adjust LCD, right click on the desktop and click from the menu to select S3 ScreenToys. In the left menu column, select Basic, Device Management. In the Display Devices area, click the LCD icon.
option to observe the change in screen size that results from changing the Display scaling setting. Display scaling dropdown list The Display scaling dropdown list allows you to let S3 Graphics software help set an optimized mode for your LCD output. Preserve aspect ratio is the default setting. The S3 Graphics software will maintain the aspect ratio and up scale the screen image as large as possible to the device’s native resolution.
SECTION 8 MORE DISPLAY SPECIFIC PAGES In addition to the S3 ScreenToys Device Management settings page, the Basic and Advanced menus provide access to general information about the graphics subsystem and pages which provided settings to control Desktop Color and Desktop orientation, Power management controls for power-sensitive systems, Color and Chromotion filter controls for video, and Direct3D and OpenGL controls for 3D. These controls are discussed in the next sections.
OPTIONS: Select the display for which you want to adjust color from the Monitors: dropdown list in the upper left of the S3 ScreenToys Desktop Color page. Configuration options include: Display dropdown list Monitors: This dropdown list menu will contain the configurable displays. If only one display monitor is connected, this list will not be visible. In Clone multiple monitor mode, the list will be grayed and not selectable.
Calibration monitor image This "monitor" image will display an image you select from the list of calibration images. The visual reference is intended to help you adjust the color. Calibration image list Click the arrow to the right of the Calibration image dropdown list to display a menu of calibration pictures available to display in the calibration monitor image. Clicking on the monitor image repeatedly will also cycle through the calibration images. Click on the image you want.
list to see the menu of all Desktop Color Profiles available for selection. Click on a profile to select it. Save as… Click Save As… to save the current settings using the existing Profile name or a new name. Click OK to complete the save. Delete Click Delete to delete the currently selected Desktop Color Profile. Adjustment list Click the arrow to the right of the Calibration dropdown menu to show a list of color channel(s) to adjust. Select Red to make further adjustments only to the red channel.
Reset buttons Click the black Reset button to the right of the slider to Reset the value for the individual slider to its default. Defaults Click the Defaults button at the bottom of the window to return all gamma, brightness, and contrast settings to the default for the current display Monitor. User Guide for Chrome 400 Series Graphics SG192-C.
8.2 S3 ScreenToys Rotation Rotation of the desktop screen image is available through the S3 Graphics S3 ScreenToys Rotation page. ACCESS: To rotate your desktop screen image, right click on the desktop and select to open the S3 ScreenToys window. In the left menu column, select Advanced, Rotation. The S3 ScreenToys Rotation orientation options are now available for selection. Rotation control is also accessible from the S3 taskbar icon menu.
Monitor orientation options: OPTIONS: Each connected and enabled device may be rotated independently. The Display to be changed can be selected through the Monitors: dropdown list located in the upper left corner of the S3 ScreenToys Rotation page. S3 ScreenToys Rotation options are: Image area Orientation reference image CW CCW Use this group to step through orientation options and view the result. View this bitmap image of a desktop to see the effects of any proposed screen orientation selection.
Orientation area This group contains four radio buttons, one for each of the orientations available for selection. Normal (Primary landscape) Click the Normal (Primary landscape) button to orientate the screen image to the default rotation position. This image has 0 degrees of rotation. Click the 90 degrees (Primary portrait) button to orientate the screen image to a vertical format as if the image were turned 90 degrees clockwise.
SECTION 9 TOOLS FOR THE VIDEO ENTHUSIAST 9.1 Video Requirements Install up-to-date versions of Microsoft’s DirectX and Media Player for your Windows Vista or Windows XP. DirectX Updates Your S3 Graphics software is designed to take full advantage of the advanced features available with DirectX. For the best possible performance and visual experience, be sure you have installed DirectX and are using a level compatible with your driver. http://windowsupdate.microsoft.
9.2 Video Viewing with Application Software The advanced high quality ChromotionHD 2.0 programmable video engine of the CHROME 400 Series GPUs is fully compatible with Microsoft DirectX-VA 2.0 media acceleration and supports Protected Video Playback (PVP) of a wide range of video codecs, including Windows Media VideoTM 9 HD (WMV9-HD), MPEG-2 HD, VC-1, and H.264 (MPEG-4 AVC). High definition playback of Bluray Discs is possible with lower CPU utilization.
9.3 S3 ScreenToys Video Color Settings With S3 ScreenToys Video Color Settings you can adjust the brightness, contrast, hue and saturation of the display of video. S3 ScreenToys Video Color Settings include ChromoColor™ support using the front-end pixel shader for these adjustments. ACCESS: To adjust video settings, right click on the desktop and click from the menu to select S3 ScreenToys. From the left panel Basic menu, select Video Color Settings.
Select the device whose video adjustments you wish to configure. (You can test the selection by experimentally moving a slider to detect which monitor is currently configurable.) ChromoColor image This image shows a graphic. This is a non-functional user interface element. Profiles area Video Color Settings Profiles can be created at any time, and saved for future re-use.
Hue slider Drag the slider thumb along the bar to the right to adjust the hue of the display output towards purple. Drag the slider bar to the left to make the hue greener. Saturation slider Drag the slider thumb along the bar to the right to increase the intensity of the colors in the display output. Drag the slider thumb along the bar to the left to decrease the color intensity of the display output.
value has been increased, and the overall image shadows appear darker. Original: Black Point Threshold increased: White Point Enhancement slider The White Point Enhancement control allows you to adjust the range of white values which are displayed in the highlight areas of the image. The adjustment lets you expand the value range to make the whites in the image appear either more intense (whiter whites) or clip the value range to make the highlights darker (darker with lower contrast).
9.4 S3 ScreenToys ChromoVision for HDMI ACCESS: To enable ChromoVision capabilities for your HDMI device, visit the Advanced/Options settings page accessible from the S3 ScreenToys Device Management window. In the Display Devices area, click the HDMI icon. Next check the Device Status checkbox underneath the icon. In the lower device settings area, click the Advanced button. Locate the ChromoVision checkbox.
Normal Select Normal to display 4:3 source on 16:9 wide screen with no scaling and no change to aspect ratio. With Normal view, vertical black bars will appear on both sides of the 4:3 image to fill the unused areas of the wide screen. Zoom Select Zoom to display letterboxed 4:3 source which would otherwise show black bars all around the wide screen image (such as a 4:3 letterbox DVD). Zoom uses equal amounts of horizontal and vertical linear scaling to expand the image to fill the wide screen 16:9 area.
User Guide for Chrome 400 Series Graphics SG192-C.
9.5 S3 ScreenToys Chromotion Video S3 Graphics’ hardware support for video acceleration is optimized for compatibility with DirectX Video Acceleration (DXVA). The Chromotion Video Engine provides IDCT support and post-processing capabilities for de-interlacing, subpicture blending, video scaling, rotation, color conversion and video effects.
Effect/Filter dropdown list Select an effect or filter from this dropdown list. Then use the slider to set a value for the amount of visual effect to be used during display of any video playback. A slider bar allows you to adjust the amount or intensity of the effect. The slider thumb can be moved to the right to increase (More) or the left to decrease (Less) the amount of the effect. Each filter may have a different number of allowed steps between left (Less) and right (More).
Complex Picture Smoothing Click Complex Picture Smoothing to use offset deblocking which affects both the block boundaries and the inside of the block. Use this method for flat images. Complex Picture Smoothing should resolve image artifacts propagated from the previous frame. Move the slider thumb along the bar to the right to increase the amount of the applied effect. (seven step). User Guide for Chrome 400 Series Graphics SG192-C.
SECTION 10 TOOLS FOR THE 3D ENTHUSIAST Use the S3 ScreenToys 3D settings configuration tool to configure or toggle 3D-related and capabilities to compensate for differences in the requirements and behaviors of various Direct3D and OpenGL applications. All 3D configuration page views include the following components: Upper area Monitor image This "monitor" image shows a graphic image. This is a non-functional user interface element.
10.1 S3 ScreenToys 3D settings for Direct3D Use the S3 ScreenToys 3D settings page with the 3D Interface option set to Direct3D to configure or toggle Direct3D-related capabilities to compensate for differences in the requirements and behaviors of various Direct3D applications. ACCESS: To adjust 3D settings for Direct3D, right click on the desktop and select S3 ScreenToys from the menu. From the Advanced dropdown list menu in the left panel, select 3D settings.
Direct3D general area Show dropdown button Options in this area allow you to restore default settings, and to select an expertise level for option visibility. Click Show button to display a dropdown list of user expert levels. Click Advanced to display the settings associated with these expert levels. When a check precedes the Advanced level name in the Show menu, that level’s features and settings will be listed as available for adjustment through the Features and Settings table on this utility page.
Features Standard Wait for monitor sync be set for the selected feature. Click on your choice to change a value. Your new value will appear in the Setting column, but will not become the active value until you click Apply and re-launch your Direct3D application. These Standard Features and associated settings are available for adjustment.
application to specify which level of super-sampling should be applied. Otherwise, the driver selects an optimized value. This is the default. OFF – Select OFF to disable anti-aliasing. Image quality usually suffers, but performance may increase because less pixel processing occurs. 2X, 4X, 8X – Select a level to enable optimized super-sampled anti-aliasing. This will provide optimized anti-aliasing and still have only a minimal impact on performance speed.
Features: Advanced Fast destination clear that is then applied to a single pixel. 3X,4X,…– Select intermediate sampling levels to match your preferred balance between quality and performance. The higher the sampling level, the greater the degree of filtering. Visual quality will improve at the expense of performance. 16X – Select 16X to force use of classic anisotropic sampling using 128 taps in a non-square sampling pattern.
3D object’s value on the Z (depth) axis. S3 Graphics software decides whether to make certain components of an image visible or hidden to the viewer, based on values in the Z-buffer. The stencil buffer holds additional information for each pixel about whether or not to draw it. Stencils can be of any shape and can be thought of as a mask with cutouts that allow an image to be seen through the cutout.
map levels computed by trilinear texturing are available for use by the Direct3D application. High quality images will be sharper and more aliased and will result from the use of a higher number of MIP map levels. Blurrier images result from using a smaller number of intermediary MIP map levels. Because less texture data is used, higher performance is associated with fewer MIP map levels.
point without a low byte for the mantissa. 32-bit – Select 32 to force a 32 bit depth buffer. The 32 bit depth buffer will provide the greatest level of precision possible, using a standard single precision floating point format. While this buffer precision will provide high visual quality, rendering speed will be slower. Note: Forcing a buffer depth may produce noticeable artifacts.
10.2 S3 ScreenToys 3D Settings for OpenGL Use the S3 ScreenToys 3D Settings page with the 3D Interface dropdown list set to OpenGL to configure or toggle OpenGL-related capabilities to compensate for differences in the requirements and behaviors of various OpenGL applications. ACCESS: To adjust OpenGL configuration settings, right click on the desktop and select S3 ScreenToys from the menu. In the Advanced dropdown list in the left panel, click 3D settings.
options. This makes the OpenGL adjustments configurable. OpenGL Displays the 3D API to which the adjustments configurable on this utility page will be applied. OpenGL general area Options in this area allow you to restore default settings, and to select an expertise level for option visibility. Show dropdown button Click Show button to display a dropdown list of user expert levels. Click Advanced to display the settings associated with these expert levels.
Features Standard Wait for monitor sync Click on the down arrow to the right of the dropdown list to display a menu of available setting values that can be set for the selected feature. Click on your choice to change a value. Your new value will appear in the Setting column, but will not become the active value until you click Apply and re-launch your Direct3D application. These Standard Features and associated settings are available for adjustment.
more MIP maps to better approximate very distorted textures. Anisotropic can be used in conjunction with bilinear or trilinear filtering as well as MIP map filtering. While trilinear filtering is capable of producing fine visuals, it only samples from a square area, which is not the ideal sampling area for all cases.
Features: Advanced Warning: Configuration of the following features should be done only by experienced users, as unexpected behaviors or appearance may result. Detail level adjust The number of levels or steps available for use between the largest and the smallest MIP map image can be specified by applications and driver software. Called the MIP map Level of Detail (LOD) bias, settings are selectable and can produce results ranging from high speed performance to high visual quality.
10.3 S3 ScreenToys MultiChrome If two identical S3 Graphics display adapters are detected as installed in your system, the MultiChrome option may be available for selection from the S3 ScreenToys and CHROME menus. Refer to SG195 MultiChrome User Guide for details on this enhanced 3D rendering feature available with a dual adapter configruation. User Guide for Chrome 400 Series Graphics SG192-C.
SECTION 11 POWER MANAGEMENT CONTROLS The S3 ScreenToys Power Management controls provide an aid for conserving power on notebook (laptop) and other power-sensitive systems. It is available on selected systems running Windows Vista and Windows XP. 11.1 S3 ScreenToys Power Management S3 ScreenToys Power Management has two basic modes for controlling the level of power conservation: Automatic Power Conservation Mode (Default setting) which lets the S3 Graphics software decide the optimal setting for you.
System Status Power Source This area shows the current graphics power management status. The power source may be reported as: AC power Battery, or Unknown. If the power source is not Battery, then the Battery and hours remaining options are blank and disabled. Battery remaining If the power source is Battery, then the battery life remaining (as a percentage) is shown. Hours remaining If the power source is Battery, then the time remaining for the available battery power is shown.
GPU Power Settings area When the Let me change… checkbox is checked, you are in Advanced manual mode and the slider bar will be available to adjust and change power settings. A dropdown list will appear along the area’s title bar, which will contain a menu of the available power options. Power source bitmap A bitmap to the left of the slider bar represents the current power source.
Power Plans Below are the power plans which may be available. Power Saver setting Use the Power Saver setting to reduce power consumption. This setting will reduce speed and may lower performance. Balanced setting The Balanced setting provided the default setting provided by the driver to provide an optimal balance between power consumption and high performance. High Performance setting Increase the High Performance setting by moving the slider bar to the right.
SECTION 12 DISPLAY IDENTIFICATION & INFORMATION Use S3 ScreenToys Information, Control Panel System tools or WinS3ID to identify your Display Adapter. This information is useful when troubleshooting or locating compatible driver updates. 12.1 S3 ScreenToys Information S3 ScreenToys Information page and tab both tell you information about the S3 Graphics adapter and associated software. The S3 ScreenToys tab has been discussed previously, see Display Settings Advanced S3 ScreenToys tab.
System Configuration area This area includes information related to the system and BIOS configuration. Chip type Shows the S3 Graphics chip type name. ID string Shows the PCI Vendor ID, Device ID, Subsystem ID and Subsystem Vendor ID for the graphics hardware. BIOS version System memory Shows the S3 Graphics video BIOS version. Shows the amount of detected system memory. Video memory Shows the amount of detected video memory.
Additional Info: Direct X version Reports the version of Direct X installed in the system. Direct X Media version Display the current version number of the installed Direct X Media files. Processor information These lines contain detailed information about the system processor, including manufacturer, speed, cache detail and key features. User Guide for Chrome 400 Series Graphics SG192-C.
12.2 Information from Control Panel System To use Windows Vista or Windows XP Control Panel System information to identify your graphics device: • • • In Windows Vista, click Start. Right click on Computer, click Manage. In the left panel, select Device Manager, or In Windows Vista, click Start, click System & Maintenance, then click System. In the left panel Tasks list, select Device Manager, or In Windows XP, click Start, click Control Panel, double-click the System icon.
12.3 WinS3ID for Chip Identification WinS3ID is a Windows-compatible utility that you can run to identify the S3 Graphics product installed in your system, even when no S3 Graphics software drivers are installed. This tool is not included in driver packages, but is available for download from the www.s3graphics.com drivers download access page. User Guide for Chrome 400 Series Graphics SG192-C.
SECTION 13 MAINTENANCE GUIDE 13.1 Finding Driver Updates Periodic software updates may be issued by your vendor as new features or bug fixes become available. Places to check for driver updates available for installation with your hardware might include: Your OEM (Original Equipment Manufacturer) board vendor’s website. This is often the only location where drivers customized for specific OEM hardware are available.
Step 3. Follow the install tool’s direction. Steps for this install are similar to those outlined for initial installation using your vendor supplied CD, except that the hardware is already in use. Step 4. Click Start, Shutdown, Restart to fully initialize your update. 13.3 Software Removal Use one of the following procedures if you want to remove your S3 Graphics software. 13.3.1 Software Removal with Vista Uninstall Step 1. With Windows Vista: Click Start, then Control Panel. Step 2.
Step 6. For the changes to take full effect, you must now reboot. If you are going to physically remove your S3 Graphics hardware: Click Start, Shutdown, Shutdown. Remove the board from your system now before rebooting the computer. If you will keep your current S3 Graphics hardware in the computer: Click Start, Shutdown, Restart. Your computer will restart. Caution: Windows will not physically delete the S3Graphics Driver and Utilities files.
Step 12. For the changes to take full effect, you must now reboot. If you are going to physically remove your S3 Graphics hardware: Click Start, Shutdown, Shutdown. Remove the board from your system now before rebooting the computer. If you will keep your current S3 Graphics hardware in the computer: Click Start, Shutdown, Restart. Your computer will restart. Caution: Windows will not physically delete the S3Graphics Driver and Utilities files.
Step 5. The Confirm Device Removal window will appear. Click OK. Step 6. The System Settings Change window will appear, asking “Do you want to restart your computer now?” Select No. Step 7. For the changes to take full effect, you must now reboot. If you are going to physically remove your S3 Graphics hardware: Click Start, Shutdown, Shutdown. Remove the board from your system now before rebooting the system. If you will keep your current S3 Graphics hardware in the computer.
SECTION 14 TROUBLESHOOTING Below are some of the common answers and solutions available for questions and problems that can occur with display driver installation and use. No Display on System Boot Verify that your graphics card is properly seated in its slot. Verify that all display cables are properly connected to your card. Verify that connected displays are plugged-in and receiving power.
HOW TO References Many answers to common Windows questions are provided in the searchable Microsoft Knowledge Base. http://support.microsoft.com/ then click on Search Knowledge Base Windows Driver Roll Back feature If you encounter problems after updating your drivers under Windows Vista or XP, you may use the Driver Roll Back feature to reinstall the previous “good” driver and restore any driver settings that were changed when the new driver was added.
Step 4. You will be prompted to confirm that you would like to roll back to the previous driver. Click Yes. Step 5. Windows will then restore the files and settings for the previously installed display driver. Once the previous driver is restored, click Close. You will then be prompted to restart your computer to complete the driver roll back.
Step 2. Click Display tab. (If you are using Multi-Monitor, then there may be more than one Display tab.) On each Display page you can view information about the currently installed hardware and drivers for that device. Step 3. With Windows XP only, you can click on the Test DirectDraw and/or Test Direct3D buttons to verify that DirectX features are working properly for that particular display.
SECTION 15 GLOSSARY This glossary includes definitions for only a few of the terms used in the S3 Graphics User Manuals. Numerous on-line glossaries are available if the graphics term you are looking for is not listed below. Brightness - Visually, brightness reflects the intensity (or luminance) of the image going from darker to lighter. In S3 ScreenToys Desktop color, brightness represents the lowering or raising of the gamma curve.
Multi-Monitor – A Windows feature that allows multiple video cards to be active, each one displaying a portion of the entire desktop. Support for two monitors can be accomplished through the use of either two separate or one dual head adapter. With two separate display adapters, there are two separate drivers driving the separate displays, with each one displaying a portion of an extended desktop. Dual Head adapters, such as S3 Graphics GPUs, simulate the presence of two video cards with a single chip.
