vga output during screen blank and or sleep modes?

[bob l]

Hi -

I have client using A30 VGA output to drive a device used to send graphics through a video display unit (similar to a screen projector). Over time, we are having a problem with a sudden horizontal shift of screen image, about 1/4 screen.

Does anyone know what happens to the VGA signals that are output when screen blank or other sleep states occur?

Also, does anyone have a BIOS manual for the A30? I'd like to get some info on the various BIOS settings that might affect VGA output during the myriad of power saving modes.

Many thanks in advance!!

Bob