Graphics Display Device Driver for Microsoft Windows 3.1x Systems Supported: IBM Personal Computer systems that use the Cirrus Logic 5436/46 chip set Driver Version: 1.13l IMPORTANT: o This package contains a Windows 3.1x graphics-accelerator device driver that supports the 5436 chip set from Cirrus Logic. o Read this entire document before beginning the device-driver installation. o This README file is formatted for viewing on your screen. With it you can: - Use the Table of Contents to help locate specific topics - Use the Find option in the Edit menu of the Windows 3.1x System Editor to help you locate specific information - Print the file o Your use of the enclosed device driver indicates your acceptance of the following terms and conditions: - You must be, and you agree that you are, a prior licensee of Windows 3.1x. - You may make copies of the Windows 3.1x device driver for the Cirrus Logic 5436 equal to the number of licensed copies of Windows 3.1x you possess. - All other terms and conditions of your Windows 3.1x license agreement apply to this Windows 3.1x device driver for the Cirrus Logic 5436; however, this does not extend any warranty outlined in such agreement. CONTENTS ________ 1.0 SUPPORTED RESOLUTIONS AND COLOR DEPTHS 2.0 INSTALLING THE DEVICE DRIVERS 3.0 CHANGING YOUR MONITOR CONFIGURATION 3.1 Monitor Brand and Model 3.2 Changing Color Depth 3.3 Monitor Refresh Rates 3.4 Font Size 3.5 Font Cache Size 4.0 RECONFIGURING WINDOWS 3.1x 5.0 TURNING DDC DETECTION SUPPORT ON AND OFF 6.0 POWER MANAGEMENT SCREEN SAVER 7.0 RESOLUTION CHANGE-ON-THE-FLY SUPPORT 8.0 TSR FONT UTILITY 9.0 CLVBETSR 2.0 10.0 TRADEMARKS 1.0 SUPPORTED RESOLUTIONS _________________________ This graphics-accelerator device driver supports these resolutions and color depths: Number of Video Memory Resolutions Colors Required 640 x 480 16 1 MB 800 x 600 16 1 MB 1024 x 768 16 1 MB 1280 x 1024 16 1 MB 640 x 480 256 1 MB 800 x 600 256 1 MB 1024 x 768 256 1 MB 1280 x 1024 256 2 MB 1600 x 1200 256 2 MB 640 x 480 65,536 1 MB 800 x 600 65,536 1 MB 1024 x 768 65,536 2 MB 640 x 480 16,777,216 1 MB 800 x 600 16,777,216 2 MB 2.0 INSTALLING THE DISPLAY DRIVERS __________________________________ The Windows 3.1x device-driver installation program, called INSTALL.EXE, must be run from Windows to install the new video device drivers and utility programs. All video device drivers and support files are copied to Windows subdirectories, and the utility programs are copied to the drive and directory of your choice. Messages that are displayed in this program automatically appear in the same language that Windows appears in. For languages that are not supported, English appears. At the end of the installation, the WinMode utility program is run to complete the new device-driver setup. This utility program allows you to configure your graphics system for Windows 3.1x. To run the installation program: first start Windows 3.1x. 1. Start Windows 3.1x. 2. Click on the Windows Setup icon, click on "Options," and then click on "Change System Settings." Under "Display," select VGA, and then select OK. Under "Change System Settings," select "Current," and then select "Restart Windows." 3. Insert the Windows 3.1x graphics-accelerator device-driver installation diskette into your diskette drive. 4. From the Windows Program Manager select the Run command from the File menu. 5. In the Run dialog box, type the diskette drive letter and "INSTALL" (without the quotation marks) in the command line field. For example, type a:\install. 6. Press Enter or click on OK. An hourglass icon indicates that the program is being started. 7. If an Install Program or Verify Destination dialog box is displayed, select "Continue" or "Install." 8. In the "Select a Group" window, select OK to select the default (VGA Utilities) Install group, select another group. Under "Installation Complete," click on OK. 9. A WinMode screen is displayed after the device driver is installed. Select the monitor brand, monitor model, monitor refresh rate, number of colors, resolution, and font size, and then select OK. If your monitor is detected as a DDC monitor, you do not need to choose a monitor brand or model. A WinMode icon will be created at the end of the installation. 10. If you see a "Change AUTOEXEC.BAT" dialog box, select "Make all Modifications for you." The monitor selections you make will be saved as the default selection for system startup. 11. Remove the installation diskette and restart Windows. 12. Select the WinMode icon that was created during installation to change the display options. 3.0 CHANGING YOUR MONITOR CONFIGURATION _______________________________________ The WinMode utility program configures your graphics system for Windows 3.1x. It allows the you to change the monitor refresh rates, resolution, number of available colors,large or normal size fonts, and font cache size. After new options have been selected, you can either immediately restart Windows, in which case the new resolution takes effect immediately, or continue working in the current resolution, in which case the new resolution is effective the next time Windows is started. In some configurations, the AUTOEXEC.BAT file must be modified to make the changes permanent. WinMode assumes that the Windows device drivers have been correctly installed and configured using the installation utility program provided on the Windows 3.1x Drivers and Utilities Diskette. To run WinMode, select its icon. The icon is in the group that you specified during the installation process. When WinMode is started, the screen may blank for up to two seconds while WinMode attempts to determine the capabilities of the monitor. If this is successful, you see only one choice besides the other brand and model choices in the Monitor Brand and Monitor Model drop-down combo boxes. The VESA Display Data Channel (DDC) protocol is supported by the video subsystem. This device driver automatically detects DDC monitor capabilities and sets the monitor to the maximum refresh rate supported by the monitor. 3.1 Monitor brand and model If your monitor supports the VESA Display Data Channel, automatic monitor configuration will occur. This means that WinMode was able to identify the monitor and has determined which resolutions and refresh rates are available for the monitor. If automatic configuration does not occur, select the brand of your monitor from the list provided in the drop-down box. This changes the list of monitors in the Monitor Model drop-down box to display only the models that are available under the selected brand. If your monitor brand is not listed, select "Other Brand." 3.2 Changing Color Depth The Color buttons let you choose the number of colors that are available to WIndows 3.1x after Windows is restarted. Some of the choices might be unavailable, because of the amount of video memory in your system and the resolution that you have selected. Generally, 256-color mode is the fastest choice. If you use more colors, there is some slowdown in graphics performance. 3.3 Monitor Refresh Rates The drop-down list boxes let you select the monitor refresh rates for each resolution. If you select "None" for any screen resolution, any higher resolutions are also unavailable. This also turns off the corresponding choices in the "Resolution" box. In general, the higher the refresh rate, the better the display quality and the lower the performance, because the graphics system can perform only a fixed number of operations per second. The more time it spends redrawing the screen, the less time it has available to perform other operations. Refer to the manual that comes with your monitor to determine the proper settings for these fields. 3.4 Font Size The small fonts are intended for lower resolutions and for higher resolutions on large monitors. With smaller monitors, the large fonts are more readable at higher resolutions. 3.5 Font Cache Size The Font Cache Size lets you set the amount of system memory that is available for font caching. Next to the font cache size are an up arrow and a down arrow. Click on the up arrow to increase the cache size; click on the down arrow to decrease the cache size. Font caching increases the performance of Windows by saving the bitmaps of frequently used characters. Normally, when a character is displayed on the screen, it first is created from the Truetype outline; then it is copied to the screen. A cached character has already been created and stored, so it is just copied as needed. WinMode attempts to determine the correct setting for this field for you, but you may change it. Remember that memory set aside for font caching is not available for Windows program and system usage. Select the current model from the list that is first presented. If your monitor is not listed, select "Other Monitor." If your video adapter and monitor both support VESA Display Data Channel, this is the default choice, which means that WinMode was able to identify the monitor and knows what resolutions and refresh rates are available for the monitor. 4.0 Reconfiguring Windows 3.1x ______________________________ If you are in Windows, run WinMode to reconfigure the Windows 3.1x device drivers. Refer to the Utility software section for information about WinMode. If you are in DOS, proceed as follows to reconfigure the Windows 3.1x drivers: 1. Ensure that Windows 3.1x and the extended resolution drivers are already installed on your computer. 2. From your Windows directory, at the DOS prompt, type SETUP, and press Enter to run the Windows SETUP.EXE program. Follow the instructions on the screen. When you come to the screen that lists the hardware and software components such as video adapter, (such as VGA or CGA), keyboard type, and mouse type, go to the Display selection by using the up-arrow and down-arrow keys to move the highlighted bar. Press Enter. 3. You see the list of device drivers and their associated resolutions. 4. Highlight the desired choice by moving the cursor to the correct video driver, and then press Enter. 5. Setup prompts you that the driver is already in your Windows directory and gives you a chance to replace it. Use the existing device driver. 6. Continue with the remainder of the setup procedure, Monitor Refresh Rates. 5.0 TURNING DDC DETECTION SUPPORT ON AND OFF _____________________________________________ To turn the DDC detection support on or off, make the following changes to the WINMODE.INI file. To turn on DDC detection support: MakeDdcCall=on To turn off DDC detection support: MakeDdcCall=off 6.0 POWER MANAGEMENT SCREEN SAVER _________________________________ The Display Power Manager for Windows 3.1x provides a mechanism to control the amount of power used by the monitor. It provides a total of five levels of power savings. The first level is a conventional screen saver that turns the screen black and bounces a logo around. The black screen provides substantial power savings, and the animation lets you know that the computer is still active. The other four levels of power savings are: Reduced on mode Stand-by mode Suspend mode Off mode provides the highest level of power savings, matching the power-saving modes defined by the VESA VBE/PM standard. As you move down from one mode to the next, the amount of power saved is greater, but so is the amount of time that it takes for a monitor to recover and be ready to display data. The screen saver cycles through all of the selected power-saving modes, one after another, until the maximum selected power-saving mode has been reached. The number of minutes that is specified for each level is the number of minutes since the previous mode was enabled, not the total time elapsed. 1. Using the Windows Control Panel, select "Desktop." 2. In the Screen Saver group within the Desktop dialog box, select the Screen Saver named Display Power Manager. 3. Select the desired delay before a power-saving mode is entered. 4. Select Setup to further configure the power saving options. The following sections describe these options. For further information about setting up Windows screen savers, refer to the Windows User Guide. Specific display types Some of these power-saving modes are intended for specific monitor types, so not all of them are available on all video controllers. On some controllers, only the animated logo is available. For the power-saving modes to have any effect beyond just blanking the screen, the monitor being used must have specific power-saving features. Note: If the screen saver is in any of the power-saving modes, moving the mouse does not wake it up. This is different from normal screen savers and is used to keep the monitor from waking up because of accidents such as bumping the desk that the computer is sitting on. This is especially important if the password option is enabled, because when the password dialog box pops up, it stays there until the user turns it off. This is a limitation of the Windows 3.1x screen-saver interface. Using the Screen Saver When the screen saver is started, it initially displays a bouncing logo on a black background. To enable additional levels of power savings, select them from the Screen Saver Mode section of the Setup dialog box. 7.0 RESOLUTION CHANGE-ON-THE-FLY SUPPORT ________________________________________ To turn the resolution change-on-the-fly support on or off, make the following changes to the WINMODE.INI file. To turn on resolution change-on-the-fly support, locate the following line in the WINMODE.INI file, and change the last word in the line to "on": system.ini,CL_WinAccel,changeres:lin=$winmode.ini, Configuration,changeres,on To turn off resolution change-on-the-fly support, locate the following line in the WINMODE.INI file, and change the last word in the line to "off": system.ini,CL_WinAccel,changeres:lin=$winmode.ini,Configuration, changes,off 8.0 TSR FONT UTILITY _____________________ Some DOS application programs bypass the BIOS and directly draw characters to the screen. Programs that directly draw characters using the 8 x 14 font from the BIOS will appear to be writing incorrect data to the screen. Typically, this can occur in programs that offer a selection to use a graphics 25- or 34-line display mode. Other programs might appear to cut off the descenders of characters like "y" and "j." Running the TSRFONT utility program makes a full 8 x 14 size character set available to these programs and should correct these display errors in these programs. Copy TSRFONT.COM from the device-driver installation diskette to the DOS root directory. To run the TSRFONT utility program, type TSRFONT, and press Enter. For example: a:\TSRFONT To run the TSRFONT utility program automatically, edit AUTOEXEC.BAT, and insert "TSRFONT" (without the quotation marks) at the end the file. Make sure that the TSRFONT.EXE is copied at the root directory. A note about terminate-and-stay-resident (TSR) programs: Because a TSR program resides in low memory (a portion of the 640 KB DOS space), it takes up some memory that could be useful to or needed by other programs. In some cases, the system might malfunction because too many TSR programs are taking up important resources. If this happens, stop one TSR program at a time, and check the stability of the system. In general, start a TSR program only when it is needed, and stop it and remove it when it is no longer needed. 9.0 CLVBETSR 2.0 __________________ CLVBETSR.EXE (Cirrus Logic Vesa Bios Extention 2.0 TSR) provides support for VESA compliant extended modes. Installation: - Copy CLVBETSR.EXEE to root directory of your harddisk. - Add "C:\CLVBETSR.EXE" line to your AUTOEXEC.BAT file. (Without Quotation marks) 10.0 TRADEMARKS _______________ IBM is a trademark of the IBM Corporation. Cirrus Logic is a trademark of Cirrus Logic, Inc. Microsoft and Windows are trademarks or registered trademarks of Microsoft Corporation.