@greglucas can you check there's no issue with the backport?

The scaling all looks good to me jumping between the monitors, but now there is another issue of the updates not triggering a draw. On 3.5.0 when I move the slider, the window immediately updates the draw. Here, the slider moves, but there is no visual response. But, if I go into pan mode and click on the plot, the canvas is updated with the proper scaling I had selected.

Note that on 3.5.0, it is not flawless for me, I can slide the bar around for a bit and then all of a sudden it freezes on me and interactivity is gone. So there is something odd going on there too.

Could be related to the flush_events-type stuff?

Anyway, I'll merge this now as that seems something else.

👍 Yes, I think so.