I have dell p1130 21' (gtx 280) and I had tried reach 100hz on 1280x1024. Few minutes ago I removed 4th pin from DVI-VGA connector like here:
Now I can uncheck "hide modes that this monitor cannot display" and i can choose 100hz, but after this system detect my monitor as "Generic Non-Pnp monitor". I can update driver
to "generic pnp" (profile from Phoenix) and sytem detect my monitor as "Display device on: VGA". When I run softMCCS dcc/ci is not supported on both type of drivers
. I removed 4th pin really carefully. Anyone have a any idea?