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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!cs.utexas.edu!torn!newshost.uwo.ca!csd.uwo.ca!thor
- From: thor@csd.uwo.ca (Jim Thorsley)
- Subject: ATI VGA Problem
- Organization: Dept. of Computer Science, UWO, London Canada
- Date: Wed, 6 Jan 1993 16:51:32 GMT
- Message-ID: <1993Jan6.165132.15103@julian.uwo.ca>
- Keywords: VGA EGA ATI
- Sender: thor@csd (Jim Thorsley)
- Nntp-Posting-Host: no1sun.csd.uwo.ca
- Lines: 69
-
- I have encountered a couple of problems with my VGA card...
-
- I received a video game for Christmas called Lemmings. I tried it on
- my system but the mouse cursor was messed up. It looked as if the
- byte order of the cursor was reversed when it restored the patch of
- screen it was passing over. Anyways, it royally messed up the screen
- and made things unreadable. Also, The cursor seemed to jump (teleport?)
- to other parts of the screen without provocation, usually to a point
- directly above or below the current point. I've had this kind of problem
- with other video games too. I've seen Lemmings working well on another
- machine.
-
- Also...
-
- My VGA adapter screwed up on me. I was playing around with the configuration
- program in an attempt to get the mouse cursor to work properly. The card has
- two connectors on the back, one for a vga monitor and one for an ega
- monitor. My monitor was on the vga port. In the vga setup program menu
- (VSETUP) there is an entry to switch the card to the ega connector.
- In hopes of fixing this mouse cursor problem I switched to ega. Now
- when I reboot the system displays two version lines on the vga screen
- reinitializes all the disks and then hangs. If I plug an ega monitor
- into the ega connector and remove the vga monitor the system reboots
- fine but now I don't have the resolution of the vga screen. If the vga
- monitor is connected to the vga port (even powered off!) the system will hang.
- If I go back into the setup program and try to set the card back to vga
- it won't let me select the vga option in the menu. It skips over it.
-
- My system is an AMI 386 running at 33 MHz and with 4 Meg of memory.
- The board is an ATI VGA Wonder card. I managed to extract the following
- info from the ATI BIOS information block:
-
- Signature code: 31 = VGA WONDER
- Chip version: 2 = ATI 18800-1
- BIOS version 1.0
-
- 8 and 16 bit ROM supported yes
- Mouse chip present no
- Inport compatable mouse port no
- Micro channel support no
- Clock chip present yes
- Uses c000:0 to d000:ffff no
-
- Supports 70Hz non-interlaced no
- Supports Korean characters no
- Uses 40MHz memory clock yes
- Supports zero wait states yes
- Uses paged ROMS no
- 8514/A hardware on board no
- 32K color DAC on board no
-
- This video adapter is a VGA WONDER V5
- Amount of RAM on video board 512K
-
- What I would like to know is:
-
- Is the cursor problem a bug in my card? Is there a fix?
-
- and (more importantly)
-
- What did I do to my card? Can I fix it? Am I stuck with an EGA card now?
-
- Thanks in advance.
-
- Jim Thorsley
- thor@csd.uwo.ca
-
- P.S. HELP!
-
-