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Old June 10th 07, 04:10 PM posted to microsoft.public.win98.gen_discussion
Buffalo
External Usenet User
 
Posts: 652
Default Adj Monitor Refresh Rate

Franc Zabkar wrote:
I'm using a Mitsubishi Diamond View DV152 15" LCD monitor (= Acer
FP563). It is attached to Win98SE and Win95B boxes via a passive KVM
switch. To eliminate ghosting problems (which were caused by poor
quality video extension cables), I utilised the RGB cables from two
old scrapped monitors. However, the penalty was that I lost the
ability to detect EDID (the DDC pins were missing from the cables).
Despite this, the monitor works just fine at any specified resolution
and refresh rate. All I needed to do was to install the monitor with
the appropriate INF file.

Yours appears to be he
http://www.aocdisplay.com/envision/drivers/Envision.exe


I already have the latest .inf file for the Envision910 monitor, but thanks
for your research.

The fact that your monitor works OK with Win2K suggests that the
monitor is not limiting itself as a consequence of its corrupted EDID.


That appears to be the case.

The limitation is in your OS or display driver. Having said that, your
display driver should be able to function properly with earlier
monitors that don't support DDC/EDID, so I can't see that as your
problem.


I just wonder what the registry change was in Win2000 that the ATI Catlyst
Control Center made that allowed it to work?
Perhaps it is Win98SE that is limiting the monitor timing since the EDID is
bad,
I tried installing a default monitor in Win98SE, but I still haven't been
able to get above 60Hz even though Display Properties lets me try different
refresh rates.

If you can find your original EDID block in your registry (Win98 or
Win2K), then export it to a .reg file and post it here.


I'm not sure what key it is in. If you can tell me, I will export it both
from 2000 and 98 and post it here.

It should then
be just a matter of finding a utility (eg PowerStrip) that can write
these data to your monitor. All that we would need to do would be to
present the data in a format that this utility requires.


I wouldn't know what format to use.

When I originally installed PowerStrip, that was when the problem started. I
did not change any refresh rates, at that time, but had PowerStrip check the
EDID for my monitor (I was in 2000 at the time) and then the computer
basically slowed down to a crawl.
When I finally got to shut it down properly and restarted it, the refresh
rate was at 60Hz and the EDID was bad.
The makers of PowerStrip said that there was no way their software could
have caused the problem and they had no solution or suggestions for a
work-a-round.
- Franc Zabkar


Thanks again,
Buffalo