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CIRRUS.FAX
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1994-12-05
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Cirrus Logic 5426/5428 Chipset workaroun 7/11/94
TITLE: PROBLEMS LOADING SVGA SUPPORT W/ THE CIRRUS LOGIC
5422, 5424, 5426, AND/OR 5428 CHIPSETS.
DESCRIPTION OF SYMPTOMS:
OS/2 will not allow svga installation for any of the above
chipsets because the operating system is unable to identify
the chipset properly.
SUMMARY OF RESOLUTION:
Obtain the s3-16m dsk file from the BBS and apply the patch
to the system w/ the problem. Then reinstall the display
drivers and now OS2 will properly identify the chip.
DETAILS OF RESOLUTION:
I. Obtain s3-16m.dsk 1. Download s3-16m.dsk from the BBS,
CompuServe, or the internet. You will also need to
download the file ldf.com. 2. To unpack s3-16m.dsk type:
ldf s3-16m.dsk 3. That will unpack loaddskf.exe and
s3-16m.dsk so you will need to unpack s3-16m.dsk again
using loaddskf.exe. This time when you use loaddskf.exe
specify a destination to unpack. You can either unpack to
the A: drive to diskette or put on the hard drive. For
Example:
loaddskf s3-16m.dsk a: (This will unpack to diskette)
loaddsdf s3-16m.dsk c:\s3 (This will unpack to a directory
called s3)
4. If you do not have the means to download with then you
can order s3-16m.dsk by calling 1-800-3ibm-os2. There will
be a small fee for shipping and handling and the diskette
cost.
II. If you have OS/2 2.1 GA 1. Follow the directions above
to obtain and unpack the s3-16m.dsk file. 2. Make sure the
system is in vga to start. To verify, go to an OS2 session
and from the root dir type: "e config.sys" and press
enter. The video statements should read:
DEVINFO=SCR,VGA, C:\OS2\VIOTBL.DCP SET
VIDEO_DEVICES=VIO_VGA SET VIO_VGA=DEVICE(BVHVGA)
DEVICE=C:\OS2\MDOS\VSVGA.SYS
NOTE: In the last line use VSVGA.SYS not VVGA.SYS
3. Change to the OS2 directory and delete any of the following
files if they exist:
SVGADATA.PMI SVGADATA.ERR SVGATMP.BAT SVGA.SAV
4. Shutdown and reboot the system. Make sure the system
boots to vga. 5. Run the following command from where ever
you unpacked the s3-16m.dsk files to. For example, if you
unpacked to diskette you would change to the A: drive and
type:
s3inst a: c:
If you unpacked the files to a directory called s3 off of
the root you will need change to that dir and type:
s3inst c:\s3 c:
6. Change to the OS2 directory and type:
UNPACK A: BUNDLE <enter>
note: you may have to use unpack2 depending on which
compression of OS2 you are using.
7. Shutdown and reboot the system. 8. Open a DOS
fullscreen and type "svga on" and exit the session. 9.
Open an OS2 session and run "dspinstl" to install svga. DO
NOT REBOOT WHEN PROMPTED!
NOTE: Do not choose the s3 when installing. You are only
using the patch that comes w/ s3-16m.dsk. DSPINSTL should
automatically detect your cirrus chip after the patch has
been applied.
10. Open DOS fullscreen and run "svga on". 11. Shutdown
and reboot.
III. OS/2 for Windows 1. Follow steps 1 through 8. 2. Open
the OS/2 system folder, then system setup, and then start
selective install from the icon. 3. Choose the primary
display and press "ok". At the next screen that appears
select "svga" and then press "ok". You will be returned
the previous screen where you then press "ok". Press the
install button at the bottom of the next screen and follow
the prompts to complete selective install. DO NOT SHUTDOWN
WHEN PROMPTED! 4. Open a DOS full screen session and run
"svga on". 5. Exit DOS to shutdown and reboot.
******************************************************************
We have assumed you installed OS2 on the c drive so if you
installed OS2 elsewhere adjust accordingly.
******************************************************************
12/31/99