> Running as previously, on Debian testing (10 or buster) with a pile of
> ram and and (lots of resources), with what may be more unusual is 2
> graphics cards and 4 monitors set up as 2 x-screens. (Would love to
> condense that into 1 screen if someone has the know how and can
> describe it but 2 works well enough even if 1 would be quite slick
> (and very 'interesting').)
Are the two cards from the same vendor? Or different vendors?
I've done this in the past using Xinerama.
Andrew