[comp.windows.ms] Two NEW? Windows bugs?

daly@ecs.umass.edu (Bryon Daly, ECE dept, UMass, Amherst) (02/12/91)

Hello,

I've found two new (to me, anyway) bugs in Windows, one mild, and one pretty
nasty.

To reproduce the mild bug, I:
start windows with
c:\> wt
where wt is a 4dos alias for "win c:\telix\telix", which starts Windows up and
runs the Telix comm program full screen.
Now, I press Alt-ENTER to reduce Telix to a window.
BUG: The cursor remains an hourglass and does not revert to the arrow.  It does
function normally, though, and eventually gets reset, after I do some things.

This problem does not really affect me, I'm just mentioning it in case someone
is gathering a list of known Windows bugs (maybe someone as MS :-)

The nasty bug:
I try loading in a 1024x768x256 bmp file as wallpaper, and get a UAE for
Control Panel.  If I try again, C Panel comes up with funny colors, and will
give another UAE if I mess with the wallpaper.  The background colors are also
messed up now.  I try once more, but this time to select a smaller bmp that
does work, and PROGRAM MANAGER gives me a UAE and disappears.  Now I'm 
basically unable to do anything, and have to reboot (Any keystrokes/mouse
clicks give me the "buffer full" beep)  The first time this happened, I was
no longer able to boot off my hard disk, and had to reformat (sys'ing it didn't
work).  The second time I saw this, no damage was done to the hard disk.  I
think the first time, SHARE might not have been loaded in, though (It is a
200MB hard disk as one partition) which might have caused problems.

Has anyone gotten a 1024x768x256 bmp to work as wallpaper?  The bmp I used was
converted from a gif file of the same specs, and works fine in paintbrush and
WinGIF.

My system setup:
Gateway/Micronics 486/25 with 8MB RAM & 20MB swapfile
Diamond SpeedSTAR (Tseng ET4000AX) 1MB video card using Diamond's 1024x768x256
   driver
Smartdrv.sys 2048 1024

NOTE: 800x600x256 bmp's work fine as wallpaper, and I have tiled other smaller
bmp's to fill the whole 1024x768 area w/o any problems.

Again, I don't NEED a solution, but am just looking to see if anyone else can
confirm these bugs.

Bryon Daly
daly@omega.ecs.umass.edu

nan@math.ksu.edu (Nan Zou) (02/13/91)

daly@ecs.umass.edu (Bryon Daly, ECE dept, UMass, Amherst) writes:

>The nasty bug:
>I try loading in a 1024x768x256 bmp file as wallpaper, and get a UAE for
>Control Panel.  If I try again, C Panel comes up with funny colors, and will
>give another UAE if I mess with the wallpaper.  The background colors are also
>messed up now.  I try once more, but this time to select a smaller bmp that
>does work, and PROGRAM MANAGER gives me a UAE and disappears.  Now I'm 
>basically unable to do anything, and have to reboot (Any keystrokes/mouse
>clicks give me the "buffer full" beep)  The first time this happened, I was
>no longer able to boot off my hard disk, and had to reformat (sys'ing it didn't
>work).  The second time I saw this, no damage was done to the hard disk.  I
>think the first time, SHARE might not have been loaded in, though (It is a
>200MB hard disk as one partition) which might have caused problems.

>Has anyone gotten a 1024x768x256 bmp to work as wallpaper?  The bmp I used was
>converted from a gif file of the same specs, and works fine in paintbrush and
>WinGIF.

I also couldn't load a 1024x768x256 .bmp as wallpaper in enhanced mode, I
could load it in standard mode though. And 800x600x256 worked fine in enhanced
mode. This might have something to do with momory allocation, but I have 4
Meg + 4 Meg swap so theorectally there shouldn't be a problem. Lets hear it
from someone who has successfully used 1024x768x256 .bmp as wallpaper in
enhanced mode.
      
--
           Nan Zou              | Bitnet  : nan@ksuvm
    Kansas State University     | Internet: nan@math.ksu.edu
  #include <std_disclaimer.h>   |           nan@phobos.cis.ksu.edu

azarian@hpcc01.HP.COM (Randy Azarian) (02/15/91)

I have had no trouble loading a 1024x768x256 bitmap.  I have also used 
1280x1024x256 bitmaps in 386 Enhanced mode.

I have an HP Vectra RS/25C with 8M RAM and an IGC-20 graphics controller with
2M VRAM and 1M DRAM.

doug@hparc0.HP.COM (Doug Parsons) (02/15/91)

Looking for someone who's successuflly loaded 1024x768x256 bmps in enhanced?


No problem.  I use Screen Peace to select 1 of about 50 said sized bitmaps,
and have never had a problem.

System is: HP Vectra RS25C with 310mb, 8mb, QEMM 5.1, LanManager 1.x,
smartdrv 2048 1024, etc.

Oh yes- HP IGC-10 video card, which uses TI's 34010 chip and a DGIS win/3
driver for 1024x768x256.

I have never had a problem, no matter what my config.sys or autoexec.bat has
loaded.  ie, a minimal, non-QEMM, non-LanMgr setup still allows this.

The only problem has been with the disc space used for these things; I had
to install a 2nd 103mb drive just for images!

Douginoz

"Dorothy!  Dorothy!  Wake up, Dorothy!"