Regression: Blender creates unexpected selection areas when using Select Box or Select Lasso which can lead to crashes #109532

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opened 2023-06-29 21:23:05 +02:00 by MVPuccino · 3 comments

MVPuccino commented

2023-06-29 21:23:05 +02:00

System Information
Operating system: ArchLinux (Plasma Wayland)
Graphics card: RX 580 8GB | 23.1.3-1

Blender Version
Broken: 3.6.0, c7fc78b81e, blender-v3.6-release, 2023-06-27 08:08
Worked: 3.5.1, e1ccd9d4a1, blender-v3.5-release, 2023-04-24 18:11

Short description of error
When returning to Blender after it not being the focused window trying to Select Box it'll produce a selection area that goes to the right and the bottom of the cursor, completing the selection will cause Blender to freeze and crash.

Same thing will happen in Select Lasso, but with Select Lasso the direction of the selection area appears to be random and it doesn't crash when letting go.

Opening Blender from the terminal and making it crash as explained gives a Segmentation fault (core dumped) error

This seems to be a Wayland-only issue as the unusual selections didn't happen on Xorg

Exact steps for others to reproduce the error

Turn on Select Box or Lasso in selection
Switch focus to another window
Return to Blender and try to initiate a selection as your first click to refocus on it.

Workarounds
Make Blender run under Xwayland (On Flatpak this can be done by revoking Blender's access to Wayland)

Example is shown in attached video.

**System Information** Operating system: ArchLinux (Plasma Wayland) Graphics card: RX 580 8GB | 23.1.3-1 **Blender Version** Broken: 3.6.0, c7fc78b81ecb, blender-v3.6-release, 2023-06-27 08:08 Worked: 3.5.1, e1ccd9d4a1d3, blender-v3.5-release, 2023-04-24 18:11 **Short description of error** When returning to Blender after it not being the focused window trying to Select Box it'll produce a selection area that goes to the right and the bottom of the cursor, completing the selection will cause Blender to freeze and crash. Same thing will happen in Select Lasso, but with Select Lasso the direction of the selection area appears to be random and it doesn't crash when letting go. Opening Blender from the terminal and making it crash as explained gives a `Segmentation fault (core dumped)` error This seems to be a Wayland-only issue as the unusual selections didn't happen on Xorg **Exact steps for others to reproduce the error** 1. Turn on Select Box or Lasso in selection 1. Switch focus to another window 1. Return to Blender and try to initiate a selection as your first click to refocus on it. **Workarounds** Make Blender run under Xwayland (On Flatpak this can be done by revoking Blender's access to Wayland) Example is shown in attached video.

2023-06-29 20-29-17.mp4

4.6 MiB

blender.crash.txt

99 B

MVPuccino added the

labels 2023-06-29 21:23:05 +02:00

Iliya Katushenock added the

label 2023-06-29 21:28:25 +02:00

Pratik Borhade commented

2023-06-30 06:59:37 +02:00

Member

Unable to confirm on Windows (3.6)

**System Information**
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 532.03

Unable to confirm on Windows (3.6) ``` **System Information** Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 532.03 ```

YimingWu commented

2023-07-02 17:16:34 +02:00

Member

I suspect it's a problem with Flatpak packaging, it might have messed up 1 or more graphics related libraries, recently we have seen a few graphics-related bug reports that doesn't quite make sense nor having any reasonable connections to each other.

I suspect it's a problem with Flatpak packaging, it might have messed up 1 or more graphics related libraries, recently we have seen a few graphics-related bug reports that doesn't quite make sense nor having any reasonable connections to each other.

MVPuccino commented

2023-07-02 19:01:29 +02:00

Author

It happens with the native Pacman build of Archlinux as well the official binaries from the Blender website.

It happens with the native Pacman build of Archlinux as well the official binaries from the Blender website.

Pratik Borhade added the

label 2023-07-04 08:48:25 +02:00

Pratik Borhade referenced this issue

2023-07-05 10:24:11 +02:00

Ubuntu Blender Crashes When Clicking into it from another window and dragging. #109725

Guillermo Venegas referenced this issue

2023-07-07 20:45:22 +02:00

Fix #109532: Added missing conversion from wl_fixed to int in Wayland #109834

Campbell Barton referenced this issue

2023-07-09 08:35:53 +02:00

Ubuntu Blender Crashes When Clicking into it from another window and dragging. #109725

Campbell Barton referenced this issue from a commit

2023-07-09 08:58:47 +02:00

Fix #109532: Added missing conversion from wl_fixed to int in Wayland

Campbell Barton closed this issue

2023-07-09 08:58:49 +02:00

Blender Bot added

and removed

labels 2023-07-09 08:58:52 +02:00

Campbell Barton referenced this issue

2023-07-09 09:02:17 +02:00

Blender LTS: Maintenance Task 3.6 #109399

Philipp Oeser referenced this issue from a commit

2023-07-12 15:46:05 +02:00

Fix #109532: Added missing conversion from wl_fixed to int in Wayland

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