Comment 1 for bug 1294578

I think the algorithm is okay, but the rest of the solution seems overly complicated to me.

The design has a slider and a 'Match Display' button. I can't launch the MP because it crashes for me so I'm not able to tell what it looks like currently, but it seems to me like we could as an interim solution have this button only instead of a checkbox. When you click it it applies the algorithm for the selected display. Thus the automagic detection goes away and you don't even need to watch the settings.

Would that work?