This is a new one for me.
I have an Apple full page display (640x870 greyscale) that I hooked up today to two PPC towers, in combination with a variety of colour screens. All the latter had an irritating vertical line slowly going down the page, on some of which the distortion was outrageous. I then tried the full page display in combination with a Radius greyscale two page display. No problems at all doing that.
I had used the Radius greyscale with a colour monitor before on an 840av using the on-board video and a Radius Nubus card matched with the Radius monitor, without problems, so I basically expected the same behaviour on the PPC towers, which one would think should be technologically up to the task.
The machines used were a beige G3 and an 8600, both of which exhibited the same behaviour with a variety of working PCI video cards. It made no difference which monitor was hooked up to the PCI card, which monitor was 1 and 2, or which one had the menu bar.
Is there an explanation? I take it that the problem is that the greyscale is interfering with the timing of the colour monitor, but why should it do so?
I have an Apple full page display (640x870 greyscale) that I hooked up today to two PPC towers, in combination with a variety of colour screens. All the latter had an irritating vertical line slowly going down the page, on some of which the distortion was outrageous. I then tried the full page display in combination with a Radius greyscale two page display. No problems at all doing that.
I had used the Radius greyscale with a colour monitor before on an 840av using the on-board video and a Radius Nubus card matched with the Radius monitor, without problems, so I basically expected the same behaviour on the PPC towers, which one would think should be technologically up to the task.
The machines used were a beige G3 and an 8600, both of which exhibited the same behaviour with a variety of working PCI video cards. It made no difference which monitor was hooked up to the PCI card, which monitor was 1 and 2, or which one had the menu bar.
Is there an explanation? I take it that the problem is that the greyscale is interfering with the timing of the colour monitor, but why should it do so?