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Chip 1997 April (Special)
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Chip-Special_1997-04_cd.bin
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cirrus
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k7543d4a
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readme.txt
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1996-01-22
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7KB
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CL-754x OS/2 v2.1x Driver Installation Disk
(v2.20)
Changes from release 2.10 to 2.20
---------------------------------
-No changes.
OS/2 Desktop Driver Limitations
-------------------------------
There is no utility or hotkey available to support switching displays
from Panel(LCD) to CRT(Monitor) or to SimulSCAN(LCD & CRT) in the
OS/2 Desktop.
There is no utility or hotkey available to support switching displays
from Panel(LCD) to CRT(Monitor) or to SimulSCAN(LCD & CRT) in WIN-OS/2
Full-Screen.
WARNING! Using any undocumented utility or application to change
displays in a DOS full screen window COULD damage the panel!
Resolution and Colors Supported in OS/2 PM Desktop
--------------------------------------------------
640x480 256 colors (CRT/Panel/SimulSCAN display)
800x600 256 colors (CRT display and 8x6 TFT/DSTN panel only)
1024x768 256 colors (CRT display only)
Resolution and Colors Supported in WIN-OS/2 Full-Screen Session
---------------------------------------------------------------
640x480 256 colors (CRT/Panel/SimulSCAN display)
800x600 256 colors (CRT display and 8x6 TFT/DSTN panel only)
1024x768 256 colors (CRT display only)
1280x1024 256 colors (CRT display and 2M video memory)
How to Install OS/2 Desktop Driver & WIN-OS/2 Full-Screen Session
-----------------------------------------------------------------
1. Make sure the 7543 OS/2 Driver disk is labeled "DISP" by using DOS
Label command (C:\DOS\LABEL A: or B:).
2. Install OS/2 v2.1 (if not already installed) and select "VGA" as the
primary display adapter during installation. Do not select "Cirrus Logic"
because it currently only suppports Cirrus Logic desktop products.
3. Insert the Cirrus Logic 7543 OS/2 Driver disk into the floppy drive.
4. Open an OS/2 Full-Screen session.
5. Change the prompt to the floppy drive which contains the driver disk.
6. Invoke the OS/2 batch file CLINST21.CMD using OS/2 boot drive, without
a colon, as the parameter ([A:\]CLINST21 C).
7. Select the primary display type and "Cirrus Logic 7543 Panel/CRT driver".
8. If you plan to start out on Panel or SimulSCAN display, choose 640x480
resolution or 800x600 only if the panel supports SVGA.
9. Follow the applicable directions as they appear on screen.
How to Change Resolution & Colors in OS/2 Desktop
-------------------------------------------------
Follow steps 3-9 above
How to Change Screen Refresh Rates in OS/2 Desktop
--------------------------------------------------
1. During the driver installation process the Monitor Configuration/
Selection Utility dialog box will appear and display the following
choices:
(1) Default Monitor Type - this choice will use the monitor default
settings.
(2) Display Adapter Utility Program - with the aid of an application
program such as CLMODE.EXE, this choice allows the user to set various
screen refresh rates on all resolutions supported by their monitor.
A dialog box will appear asking for the location and name of
the utility program.
For example:
c:\vgautils\clmode.exe t640=75 t800=70 t1024=72 t1280=87
CLMODE.EXE comes with the DOS Drivers Disk
The new settings will be saved to the BIOS and OS/2 will invoke
SVGA.EXE to create a new SVGADATA.PMI file. The .PMI file will contain
the screen refresh rates chosen from the utility program.
How to Change Resolution & Colors in WIN-OS/2 Full-Screen Session
-----------------------------------------------------------------
If you are running OS/2 2.1:
1. Open Win-OS/2 Full-Screen session.
2. Select File from drop-down menu in Windows Program Manager.
3. Insert the GD7543 Windows Driver disk into A: or B: and run
INSTALL.EXE.
4. At the end of the installation, a VGAUTIL group will be created and the
WinMode utility will pop up. Make sure you click the "OS/2-Windows"
option in the Operating System group in WinMode if it is not already
selected. The other choices in WinMode is up to user's preference.
If you are running OS/2 2.1 for Windows:
1. If you have already installed the WinMode utility from the Windows
driver disk v1.00, make sure you select "OS/2-Windows" option if not
already set. You can change color/resolution just like you do it in
pure Windows environment.
2. If you haven't installed the GD7543 Windows Drivers previously, follow
the steps listed in "If you are running OS/2 2.1" section above.
Special Case when running OS/2 2.1 for Windows
----------------------------------------------
If you are running OS/2 2.1 for Windows and have installed the Cirrus
Logic OS/2 drivers and wish to switch between OS/2 and Windows running
under DOS, the following changes must be made.
Return to Windows running under DOS from OS/2:
1. Boot to DOS from OS/2 Desktop (click Dual-boot icon).
2. Bring up Windows and click on WinMode (utility that comes with GD7543
Windows Driver Disk and need to run Install from that diskette to copy
it over).
3. Select "DOS-Windows" option in the Operating System group in WinMode
if it is not already selected.
4. If you are not using WinMode (highly recommended), open the
WINDOWS\SYSTEM.INI and delete the line "OS2vers=21" in [CLVGA]
session if it exists.
Return to OS/2 from Windows running under DOS:
1. Before you boot to OS/2 (boot /os2) from DOS, bring up Windows and
click on WinMode (utility that comes with GD7543 Windows Driver Disk
and need to run Install from that diskette to copy it over).
2. Select "OS/2-Windows" option in the Operating System group in WinMode
if it is not already selected.
3. If you are not using WinMode (highly recommended), open the
WINDOWS\SYSTEM.INI and add the line "OS2vers=21" in [CLVGA]
session if it does not exist.
4. Then boot to OS/2 (boot /os2).
Outstanding OS/2 v2.1x 754x Driver Issues:
------------------------------------------
-A vertical line will randomly appear about 2 inches from the left or right
edge of the screen when using the Enhanced Text Editor from the
Productivity folder.
-The color of an OS/2 desktop bitmapped background gets corrupted after
using the Enhanced Editor from the Productivity folder. This problem
happens randomly & is not easily reproduced.
-The OS/2 desktop gets corrupted when dragging and dropping the File
Manager window around the PM desktop.
-The Win-OS/2 desktop will get corrupted when moving the System Clock
window around. Also, opening the File Manager then scrolling through
the files will cause the text to get corrupted.
-Hot-key display switching in DSTN panel shows yellow screen in panel.