Where's the beef?
I skimmed all those screen shots. I see a lot of slides jawing about marketing teams agreeing on the term "GPU" to mutually help each other vs. monopolist Intel, and I see some talk about marketing guys not being too "harsh" on each others products.
This is hardly price fixing.
There is one chart showing prices during the alleged conspiracy period, but I frankly don't trust it; there are so many ways to spin that pricing data of competitive products by picking which two products you compare. Perhaps there's a story there but it needs a lot firmer evidence than that!
BTW, I believe Dave Orton and Dan Vivoli both were at SGI at the same period, pre-PC-graphics. Not that that's evidence pro or anti-conspiracy, but indicates a trust relationship they have likely precedes talks between themselves at their currently-competitive employers.