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- From: buhr@umanitoba.ca (Kevin Andrew Buhr)
- Subject: Better workaround when SP and Tseng 4000 won't boot (was Re: Known SP bugs: please read)
- Message-ID: <BUHR.92Nov21203120@ccu.umanitoba.ca>
- Followup-To: comp.os.os2.misc
- Sender: news@ccu.umanitoba.ca
- Nntp-Posting-Host: ccu.umanitoba.ca
- Organization: University of Manitoba, Canada
- References: <75295@hydra.gatech.EDU>
- Date: Sun, 22 Nov 1992 02:31:20 GMT
- Lines: 115
-
- In article <75295@hydra.gatech.EDU> gt0040a@prism.gatech.EDU (Tom
- Sorensen) quotes from a list of workarounds:
-
- > 5. The new Tseng SVGA drivers were installed but the OS/2 system fails to
- > boot afterwards (only a blinking cursor in the upper left hand corner
- > of an otherwise blank screen).
-
- I ran into this problem. It was *very* disconcerting, to say the least.
-
- > Check for the existence of a SVGADATA.PMI file in the OS2 directory
- > on the OS/2 primary partition. If not present, use the work around
- > noted in 1.C above to create the SVGADATA.PMI file.
-
- The SVGADATA.PMI file was there. The bloody system just wouldn't boot.
-
- > Check the video adapter for the Tseng ET3000 or ET4000 chipset (required
- > for OS/2). Also check to make sure that the video adapter has enough
- > video memory to use the SVGA mode that was configured. For example, the
- > modes 800x600x256 (medium resolution) and 1024x768x256 (high resolution)
- > each require a minimum of one MB of video memory.
-
- Well... DUH!
-
- Luckily, some kind soul had posted a fix. Note the following
- important fact:
-
- ***********************************************************************
- The Service Pack video drivers require IOPL=YES in your CONFIG.SYS for
- some video configurations.
- ***********************************************************************
-
- I changed my "IOPL=NO" statement to "IOPL=YES", and OS/2 came up
- fine...in regular VGA mode.
-
- I then chose "OS/2 System -> System Setup -> Selective Install", and
- selected "Video Display" and selected "SuperVGA" (despite the fact
- this option was already selected). I then clicked "Install" and it
- asked for all the disks from the original package, one after another,
- and then both display driver diskettes from the Service Pack. I
- obliged, saw it run a quick "SVGA ON", and restarted my system.
-
- Would this be the end of my Service Pack troubles? Of course not.
- Please read on...
-
- AARRGGH! It came up out of sync. OS/2 was alive, but unusable. I
- then booted up from a DOS diskette in drive A, and tried running "SVGA
- OFF". It claimed that it couldn't find the file "A:\OS2\SVGADATA.PMI"
- despite the fact that I was in the "C:\OS2" directory. Ah, well! I
- tried "SVGA ON" anyway, and it told me my chipset wasn't supported.
- Like Hell!
-
- Luckily, I had "Dual Boot" installed, so I booted up DOS from drive
- "C", ran "SVGA OFF", which worked, did a "VMODE CUSTOM", which was
- what I had been using before, and did an "SVGA ON".
-
- I booted up OS/2, and everything went smoothly.
-
- I'm *very* impressed with 1024x768 seamless Windows, and I like the
- new fonts. I *hate* the slow scrolling in DOS and OS/2 windows, but
- I'll have to live with it until jump scrolling is introduced.
-
- In summary, I would suggest the following course of action if you
- install the CSD with a Diamond Speedstar with the Tseng 4000 chipset.
-
- *BEFORE* you install the Service Pack:
-
- 1. Make a DOS boot diskette if you don't have one. Remember,
- you'll have to boot from *real* DOS to do this. Copy your
- Speedstar "VMODE" command (and relevant data files) and the
- "SVGA.EXE" file from the "C:\OS2" directory to it.
-
- 2. Make sure the line "IOPL=YES" is in your CONFIG.SYS if you'd
- like your system to boot later on.
-
- 3. Put the line "RUN=C:\OS2\CMD.EXE" at the end of your
- CONFIG.SYS. This will give you a chance to enter commands
- before OS/2 tries to run the Workplace Shell.
-
- *AFTER* you install the Service Pack:
-
- 1. Cross your fingers. I understand this helps.
-
- 2. When you system comes up (in regular VGA mode), select the
- "OS/2 System" folder from the desktop, pick "System Setup"
- from that folder, and "Selective Install" from *that* one.
-
- Then, select the checkbox to change the video display (even if
- it already says "Super VGA"). Select "Super VGA" again, and
- ask to "Install" your selected configuration.
-
- Plug in one GA diskette after another when prompted. Plug in
- your Service Pack display driver diskettes, too.
-
- Your system will pop over to a fullscreen session to run
- "SVGA", probably without the "VMODE" you want. *Before* you
- restart your system, start your own *fullscreen* DOS session,
- run "VMODE CUSTOM" (or whatever you think will work), and run
- "SVGA ON".
-
- *Now*, you can restart the system. When the "CMD.EXE" prompt
- appears, type "EXIT" to continue to the Workplace Shell.
-
- 3. If your desktop comes up with the wrong sync, take out your
- handy DOS boot disk. Try to Dual Boot to DOS on drive "C" to
- run "VMODE" and "SVGA ON".
-
- If you only have an "HPFS" partition, you could try creating
- an "A:\OS2" directory and running "SVGA ON" to put the
- "SVGADATA.PMI" file on drive "A". Now, when you get your
- command line prompt, "COPY A:\OS2\SVGADATA.PMI C:\OS2" and
- reboot a second time.
-
- Good luck!
-
- Kevin Buhr <buhr@ccu.UManitoba.CA>
-