I don't mind the approach to allow base res have flags instead which you need to switch into. But it's tricky to get right for frame packed since the base width/height are completely different when we are in 3d.

> It seems to me that the display should reflect the chosen stereo mode, not the stereo mode reflecting the display.

To me that just is A=B. Ie that it goes both ways.

Some people run double projectors in a split res setup. In those cases the only resolutions available are 3D resolutions. There are no such thing as a non 3d res.