Re: Feature Request - option to disable panning for mode switching.
This IS an nvidia driver issue as this never happened until I got an nvidia card. I have been using X-Windows & multiple screens/screen modes for years and it has always worked correctly.
for example in the display section if you put:
Viewport 0 0
Modes "1600x1200" "1280x1024" "800x600" "640x480"
and you use CTRL+ALT+"+/-", you get what you want. when you are in 1600x1200, you have a 1600x1200 screen size, when you switch to 640x480, you have a 640x480 screen size, with NO panning (virtual screen). Nvidia ignores these settings and uses their own.
I've been using dual-head features on non-nvidia cards since multi-head xinerama support was added to X. It's only with nvidia cards that this issue occurs. Hense it must be the nvidia driver/card.
If nvidia doesn't see fit to own this issue and blame it on X windows, I'll quit using nvidia cards and go back to matrox and ati. They at least worked correctly with X screen settings.