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Compositor Interactions/Selections fail on dual monitors
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Description

System Information
Operating system: Darwin-17.7.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon HD - FirePro D700 OpenGL Engine ATI Technologies Inc. 4.1 ATI-1.68.23

Blender Version
Broken: version: 2.82 (sub 0), branch: master, commit date: 2019-10-11 12:13, hash: rB533a7e25dbdb
Worked: (optional)

Short description of error
When two compositor windows are open on different monitors, interactions do not work as expected:
https://youtu.be/ppWJGllv3A8
For example, when interacting with nodes, click and drag (move) doesnt work when on separate monitors, but when both windows live on the same monitor, the problem no longer exists (see video example).

Exact steps for others to reproduce the error
Open a compositor project, duplicate the blender (compositor) window, duplicate to a separate monitor and you can no longer click and drag nodes.

Related Objects

Event Timeline

Richard Antalik (ISS) changed the task status from Needs Triage to Needs Information from User.Tue, Jan 14, 9:21 PM

Is this still an issue with latest build? https://builder.blender.org/download/

michael campbell (3di) changed the task status from Needs Information from User to Needs Triage.Tue, Jan 14, 9:47 PM

yes just tested. You can only interact with the compositor nodes on the duplicate window in the second monitor.

Richard Antalik (ISS) changed the task status from Needs Triage to Needs Developer to Reproduce.Tue, Jan 14, 10:42 PM

Issue is also happening on windows 10

Jacques Lucke (JacquesLucke) changed the task status from Needs Developer to Reproduce to Needs Information from User.Tue, Jan 21, 11:42 AM

I cannot reproduce it on Ubuntu 19.10 and Windows 10 in the default file just with "Use Nodes" enabled in the Compositor.

Can you reproduce it in any file? Please prepare a as-simple-as-possible example file in which you can reproduce it.