does setting a stylesheet in freecad configuration help? do you have a hidpi monitor? Also post your full freecad info please. Is this from the ppa or the official ubuntu repos?

Do you have one of these HiDPI displays?

On a normal monitor it's possible to test a few HiDPI things by setting QT_SCALE_FACTOR . When I set it to 2.0 and run the macro the object is clearly too small -- by the same factor. So, obviously HiDPI matters and must be respected to get the correct ...

... few seconds. But I still wonder in which cases the function apparently doesn't work and when this tweak factor is needed. Could this be related to HiDPI monitors?

That's certainly how the code reads to me: the MayaGestureNavigation, for example, has a huge amount of code that works to separate out the various possible mouse events, and to re-synthesize clicks if it accidentally ate them. I'd say that this problem is probably fixable, but it won't be trivial t...

I think HiDPI support is still active/relevant, and the page seems up to date with our last discussions here on the forum. But it definitely seems that the rest are badly outdated.

Interesting choice of words: my problem isn't speed, it's reliability. I clearly need to dig into this a little more to prove out what I'm seeing, but it's absolutely consistent with the fact that MayaGestureNavigationStyle.cpp is processing mouseMoveThreshold and BlenderNavigationStyle.cpp has no e...

regularfry wrote: ↑Sun Aug 22, 2021 1:46 pm If you try a mouse, and pick (for instance) Blender style, do you notice any difference?

No difference, it is as fast as before.

chrisb wrote: ↑Sun Aug 22, 2021 12:21 pm

regularfry wrote: ↑Sun Aug 22, 2021 12:10 pm Which input style do you use, and what pointing device?

Input device: touch pad; Mouse model: Gesture.

Right, that makes sense then: Gesture is one that calls startDragDistance. If you try a mouse, and pick (for instance) Blender style, do you notice any difference?

OS: Windows 10 Version 2009 Word size of OS: 64-bit Word size of FreeCAD: 64-bit Version: 0.19.24291 (Git) Build type: Release Branch: releases/FreeCAD-0-19 Hash: 7b5e18a0759de778b74d3a5c17eba9cb815035ac Python version: 3.8.6+ Qt version: 5.15.2 Coin version: 4.0.1 OCC version: 7.5.0 Locale: English...