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Won't Fix
Votes
0
Found in
2020.3.36f1
2021.3.6f1
2022.1.10f1
2022.2.0b2
2023.1.0a3
Issue ID
UUM-9662
Regression
No
"Mouse.delta" returns zero when moving the cursor against the screen edge when using a Remote Desktop Connection on Windows
How to reproduce:
# Open the user-attached project (InputSystem MouseDelta Bug.rar)
# Open the SampleScene and enter Play Mode
# Make sure that the Game view is maximized
# Move the mouse cursor around and note the flickering
# Move the mouse cursor against the side of the screen
Expected result: the Game view flickers indicating that the mouse delta isn’t zero
Actual result: the Game view remains black indicating that the mouse delta is zero
Reproducible with: 2020.3.36f1, 2021.3.6f1, 2022.1.10f1, 2022.2.0b2, 2023.1.0a3
Reproducible on: Windows 10, Ubuntu 20.04
Notes:
# Documentation page mentioning the expected behavior: [https://docs.unity3d.com/Packages/com.unity.inputsystem@1.0/api/UnityEngine.InputSystem.Pointer.html#UnityEngine_InputSystem_Pointer_delta|https://docs.unity3d.com/Packages/com.unity.inputsystem@1.0/api/UnityEngine.InputSystem.Pointer.html#UnityEngine_InputSystem_Pointer_delta]
# Reproducible when using a remote desktop connection or a KVM switch emulator (like Barrier) and reproducible on Linux without any additional software
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Resolution Note:
When the mouse cursor is against the edge of the screen and you are running Unity through a remote desktop session, Unity does not receive any input events from the OS. Unfortunately, this seems to be a limitation of RDP and we cannot fix it.