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ViewSonic Corp. Revision Date: 08/14/95
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CONTENTS
========
This document contains information on the the following topics:
1.0 Introduction
2.0 Installing the INF file
2.1 AutoDetection installation procedure
2.2 Manual installation procedure
3.0 Troubleshooting
4.0 Enabling DDC/Plug & Play in Windows '95
5.0 Additional Information
1.0 Introduction
=================
ViewSonic Plug & Play monitors are designed to work with Windows'95
operating system. ViewSonic monitors comply with VESA DDC (Display
Data Channel) Standards and are Plug & Play compatible. With the use
of a DDC compatible video card, the EDID (Extended Display
Identification) can be read from the ViewSonic Monitor by Plug &
Play compatible software, such as Windows '95. In order for
Windows '95 to detect the new monitor, you must ensure that the
following minimum requirements are met:
1) A DDC compatible video card is installed.
If your video card is not DDC compatible, then
autodetection will not work.
2) DDC detection is enabled in Windows '95.
This should be the case if you installed a DDC
compatible video card. The *.INF file supplied
with the video card should enable DDC in Windows '95.
If this is not the case, then autodetection will
fail.
3) A DDC compatible monitor with its *.INF file installed
into Windows '95.
Please Note: Manual installation of the ViewSonic's *.INF's
file is always an option whether the above
conditions are met or not.
2.1 AutoDetection Installation Procedure
========================================
NOTE: If Windows'95 is not installed on your computer, this
option will not be available.
1) Insert the "Installation Diskette" into the floppy drive.
2) In Windows '95, choose:
START
`--RUN "A:\INSTALL"
NOTE: Changed "A:" to "B:" if the diskette is in drive B:
3) Choose "Installing INF file" from the menu and execute.
4) After the "ViewSonic INF Installation is complete" message is
displayed, shut down Windows '95 and reboot the system.
The next time Windows '95 boots up, the monitor should be detected.
You can confirm the setting by clicking:
( Mouse's Right Button) My Computer(Icon)
`--PROPERTIES
`--Device Manager
`--Monitor
The correct ViewSonic model should be displayed. If it's incorrect,
highlight the current monitor, and click "Remove", then "Refresh".
This will force Windows '95 to detect the new monitor.
2.2 Manual Installation procedure
==================================
Use the mouse and click in the following order:
(Mouse's Right Button) Background
`--PROPERTIES
`--Settings
`--Change Display Type
`--Change...
`--Have Disk
Choose "OK" for the default drive "A:" otherwise type in the correct drive
letter, then choose "OK".
The correct model for your monitor should be displayed if the
requirements for DDC detection are met, otherwise, choose
your monitor from a list of monitors.
Choose "OK" and closed all windows.
3.0 TroubleShooting
====================
Problem: AutoDetection doesn't work.
Solution:
a) 1. Do you have a DDC compatible video card and is
it operational?
2. Video cable damaged or monitor DDC code invalid.
Go to the "Full-Screen DOS Prompt" & run the
DDCtest program.
Note: This program works only when a Plug & Play
ViewSonic/OptiQuest monitor is in use!
b) Is DDC enable in Windows '95?
(Right Click) My Computer
`--Properties
`--Device Manager
`--Monitor
If "Unknown Monitor" is displayed, then the problem
could be:
1) Damaged or wrong video cable?
2) Bad EDID data?
3) Non-DDC video card?
3) DDC detection is not enabled in Windows '95?
If "Plug and Play Monitor (VESA DDC) " is displayed, then
DDC is enabled, but the INF files was not correctly
installed or the *.INF file might be damaged.
Run installation procedure again or obtain the latest copy
of the *.INF file.
4.0 Manual Procedure to Enabling DDC/Plug & Play in Windows '95
===================================================================
In the retail upgrade version of Windows 95, DDC support is disabled
by default. To enable DDC, a value must be added to the Windows 95
system registry: "DDC=1", located in the software key
(aka driver key) for the current display adapter. The Windows 95
installation disk for the display adapter driver should add this
value if the driver benefits from DDC.
To add the DDC value manually, follow these steps:
1) Click the Start menu on the Windows 95 toolbar, and select
"Run..." from the menu. In the command line of the Run
dialog, type "regedit", and press Enter. This will open
the Registry Editor, which looks & works much like the
Win3.1 File Manager.
2) In the left-hand panel of the Registry Editor, click on
the "+" sign next to HKEY_LOCAL_MACHINE to expand its
subkeys. Do the same for each of the following subkeys:
-System
`--CurrentControlSet
`--Services
`--Class
`--Display
`--+0000
You are now in the registry location that contains software
keys for installed display drivers. Usually, there is only
one display key present, 0000. However, there can be
additional keys(0001,0002,etc.) depending on whether
different adapters were previously installed in the system,
or this is a portable computer with an adapter in the
docking station, etc. If there are multiple keys,complete
the remaining steps for each of them.
3) Expand the 0000 key. You should see:
-Display
`--0000
`--DEFAULT
`--+MODES
Click on DEFAULT. The right-hand panel of the Registry
Editor should display something like the following:
(Default) (value not set)
drv xxxxxxxx.drv
minivdd xxxxxxxx.vxd
Mode 8,640,480
vdd *vdd, *vflatd
These values represent default settings about the display
driver, such as its driver file names, mode, etc.
Other values may also be present. This is where the DDC
key will be added.
4) Position the mouse cursor over the right-hand panel of the
Registry Editor, and click the right mouse button. A menu
will appear. Select "New>String Value". This will create
a "New Value#1" value in the Name column. Type "DDC", and
press Enter. Double-click the word "DDC", and enter "1"
for Value Data in the Edit String dialog.
If you need to correct a mistake, you can delete the new
value you created and start over.
5) Close the Registry Editor. There is no need to save the
changes, this will happen automatically.
The next time Windows 95 restarts, it will attempt to detect a DDC
compatible monitor.
NOTE: The procedure above as obtain from Microsoft Windows '95 Article
"Support for VESA Display Data Channel (DDC)" Version 1.0,
March 1, 1995.
5.0 Additional Information
===========================
For further assistance and technical support, call:
Customer Service (909) 869-7976 or 1-800-888-8583
Mon-Fri. 7:00 AM-6:00 PM Pacific Time.
Fax (909) 869-7958
CompuServe E-Mail Address 73374,514
BBS (909) 468-1241
For ViewSonic's line of product or additional information,
please call:
FaxSonic Documents (909) 869-7318 (24-hour, Fax on demand)
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.