First post, by swaaye
While playing with the Radeon 8500 on VGA output, I ran into the usual problem of fighting the monitor EDID. My LCD's EDID lacks useful things like 1600x1200 support and for some reason identifies its max resolution as 1920x1080 even though it's a 2560x1440 screen. I really like 1920x1440.
In XP the EDID can be overriden by a checkbox in the ATI drivers, but not in Win98.
I did some web searching and came across an old forum post on Rage3D saying there's an undocumented registry setting for the ATI driver to ignore DDC/EDID in Win9x.
HKLM/Software/ATI Technologies/Driver/0001/DAL
"DALRULE_CRTSUPPORTSALLMODES"
binary set to "01 00 00 00".
It works great. I was using Catalyst 6.2 at the time. Could be risky with a CRT though. Might want to assign refresh rates with HZtool first.
https://www.rage3d.com/board/showpost.php?p=1 … 989&postcount=1