Created attachment 144572 [details]
menu on one, bar on two.

Multihead support is much better in git than the F12 packages, so thanks for
that. I do have an issue where my primary monitor has been assigned the right
hand monitor, and my secondary is left.

gnome-shell seems to put the bar on the primary display, but the menu on the
left-handmost display. It makes sense for me to have them both on the
left-handmost screen, although it would be acceptable to have them both on the
primary screen and for me to file a bug with the xrandr capplet to expose what
screen it defines as primary. If you do the latter, it's very hard to hit the
top left of activities rather than just throwing your mouse up and left, if you
know what I mean.

Screenshot shows problem nicely. Thanks.