[Nouveau] ZaphodHeads: Still works on newer cards?

[Mark James]

[Posting again. The mailing list doesn't like HTML links.]

Hello,

As I reported in this(*) bug, the Nouveau ZaphodHeads option (separate X-displays for the two heads of a single GPU)
stopped working on my GeForce 7600 GT (NV4B/G73) when I upgraded from Fedora 23 to 25. I'm really keen on getting it
back, because it's been painful losing the independent sets of virtual desktops, plus other annoyances I'm now getting
on XRandR.

But before I dive into harder options such as bisecting an X downgrade to find the problem, or implementing an
independent virtual desktop option in the MATE window manager, I'd be interested to find out whether there's anyone with
a newer card (NVidia or AMD) who's successfully using Zaphod on the latest software. If so, I'll buy myself a new card.

I was forced onto Nouveau when the proprietary Nvidia driver stopped supporting my card on the latest X. The "Multiple X
Screens"(**) mode of this driver is equivalent to ZaphodHeads. The former may not be deprecated like the latter. So a
new card and the proprietary driver might give me ongoing reliable separate-X-display support.

Thanks.

Mark

(*) https://bugs.freedesktop.org/show_bug.cgi?id=100760

(**) http://us.download.nvidia.com/XFree86/Linux-x86/173.14.12/README/chapter-15.html