Blender User Interface sluggish/lagging in 3.1 #96346

New Issue

Rafael Pasquay · 2022-03-11T19:08:17+01:00

Rafael Pasquay commented

2022-03-11 19:08:17 +01:00

System Information
Operating system: Windows 10 21H2 (19044.1586)
Graphics card: nVidia RTX 3090

Blender Version
Broken: 3.1
Worked: 3.0.1

Short description of error
UI is sluggish/lagging in 3.1 when the window is maximized where it was smooth and responsive in 3.0.1. Almost like it is rendered at a lower framerate than the viewport.

The effect can be observed clearly when resizing a "window border" (i.e. in the Layout view when you drag up the timeline) on the The viewport performance is not affected.

Please let me know if I can help by supplying more information

Exact steps for others to reproduce the error

Open Blender 3.1
Drag any border within the Blender layout

System info:
system-info.txt

**System Information** Operating system: Windows 10 21H2 (19044.1586) Graphics card: nVidia RTX 3090 **Blender Version** Broken: 3.1 Worked: 3.0.1 **Short description of error** UI is sluggish/lagging in 3.1 when the window is maximized where it was smooth and responsive in 3.0.1. Almost like it is rendered at a lower framerate than the viewport. The effect can be observed clearly when resizing a "window border" (i.e. in the Layout view when you drag up the timeline) on the The viewport performance is not affected. Please let me know if I can help by supplying more information **Exact steps for others to reproduce the error** - Open Blender 3.1 - Drag any border within the Blender layout System info: [system-info.txt](https://archive.blender.org/developer/F12921688/system-info.txt)

Rafael Pasquay commented

2022-03-11 19:08:18 +01:00

Added subscriber: @RafaelPasquay-2

Rafael Pasquay commented

2022-03-11 19:37:53 +01:00

I've tried to caputre it in a screen recording. Unfortunately on video it is hardly noticable. You can observe it best in the part where I switch to the "Texture Paint" layout.

Also I've noticed while creating these videos that the effect I described is only there when Blender runs maximized. (That is also the reason I had to take the videos from my full screen, sorry if they are too large).

Blender 3.0.1:
Blender.3.0.1.mp4

Blender 3.1:
Blender.3.1.0.mp4

I've tried to caputre it in a screen recording. Unfortunately on video it is hardly noticable. You can observe it best in the part where I switch to the "Texture Paint" layout. Also I've noticed while creating these videos that the effect I described **is only there when Blender runs maximized.** (That is also the reason I had to take the videos from my full screen, sorry if they are too large). Blender 3.0.1: [Blender.3.0.1.mp4](https://archive.blender.org/developer/F12921715/Blender.3.0.1.mp4) Blender 3.1: [Blender.3.1.0.mp4](https://archive.blender.org/developer/F12921716/Blender.3.1.0.mp4)

Harley Acheson commented

2022-03-11 20:39:39 +01:00

Added subscriber: @Harley

Harley Acheson commented

2022-03-11 20:39:39 +01:00

Potentially the same as this? #95428 (Regression: 3.1 & 3.2 Image/UV Editor poor performance (Byte textures, window dragging, maximizing area))

Rafael Pasquay commented

2022-03-11 20:58:00 +01:00

In #96346#1321373, @Harley wrote:
Potentially the same as this? #95428 (Regression: 3.1 & 3.2 Image/UV Editor poor performance (Byte textures, window dragging, maximizing area))

Hi @Harley, yes it is the same issue. I'm sorry for the duplicate. I did not finde the issue you linked as I was using different keywords.

> In #96346#1321373, @Harley wrote: > Potentially the same as this? #95428 (Regression: 3.1 & 3.2 Image/UV Editor poor performance (Byte textures, window dragging, maximizing area)) Hi @Harley, yes it is the same issue. I'm sorry for the duplicate. I did not finde the issue you linked as I was using different keywords.

Rafael Pasquay commented

2022-03-11 21:09:03 +01:00

I've tried to close this task as a duplicate of the one you linked @Harley though there seems to be an issue with loading the task list (could be related to some work on the database I was reading in the mailing list ?). I'll try again a bit later!

Alaska commented

2022-03-12 00:29:50 +01:00

Closed as duplicate of #95428

Alaska closed this issue

2022-03-12 00:29:50 +01:00

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Blender User Interface sluggish/lagging in 3.1 #96346