Blender crashes on opening file explorer window (Open, Save as, Import, Export) #91149

New Issue

spearit · 2021-09-03T04:50:39+02:00

spearit commented

2021-09-03 04:50:39 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 471.96

Blender Version
Broken: version: 2.93.3, branch: master, commit date: 2021-08-17 18:30, hash: 8b80d19f36
Worked: (newest version of Blender that worked as expected)

Short description of error
Whenever I open a file browser window from Blender (e.g.: Export, Import, Open, Save As, etc.), it crashes. For example when I click on File>Open, it seems like many file explorer windows are being opened in quick succession on top of each other until the "Blender File View" titled window appears on top and the program immediately exits. This whole process takes about 3-4 seconds and renders the program unresponsive.

The error occurs when the desktop is extended to my TV (4K TV, Marked by Windows as "Screen 1", set as secondary screen, connected via HDMI through the video card), and the (Export, Import, Open, etc.) file browser window is opened while Blender's window is maximized on "Screen 2" (FullHD monitor, set as the primary screen, connected via DVI-I through the video card).

If Blender is maximized on the extended desktop on the TV, the error will not occur.
If Blender is not maximized on the primary monitor screen, the error will not occur.
If the TV is set as the primary screen, Blender can be maximized on either of the screens and the error will not occur.

Exact steps for others to reproduce the error

Extend Windows desktop so that primary screen is FullHD monitor, while extended screen is 4K TV.
Start Blender
Maximize Blender window on FullHD monitor primary screen.
Click File>Open

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 471.96 **Blender Version** Broken: version: 2.93.3, branch: master, commit date: 2021-08-17 18:30, hash: `8b80d19f36` Worked: (newest version of Blender that worked as expected) **Short description of error** Whenever I open a file browser window from Blender (e.g.: Export, Import, Open, Save As, etc.), it crashes. For example when I click on File>Open, it seems like many file explorer windows are being opened in quick succession on top of each other until the "Blender File View" titled window appears on top and the program immediately exits. This whole process takes about 3-4 seconds and renders the program unresponsive. The error occurs when the desktop is extended to my TV (4K TV, Marked by Windows as "Screen 1", set as secondary screen, connected via HDMI through the video card), and the (Export, Import, Open, etc.) file browser window is opened while Blender's window is maximized on "Screen 2" (FullHD monitor, set as the primary screen, connected via DVI-I through the video card). If Blender is maximized on the extended desktop on the TV, the error will not occur. If Blender is not maximized on the primary monitor screen, the error will not occur. If the TV is set as the primary screen, Blender can be maximized on either of the screens and the error will not occur. **Exact steps for others to reproduce the error** 1. Extend Windows desktop so that primary screen is FullHD monitor, while extended screen is 4K TV. 2. Start Blender 3. Maximize Blender window on FullHD monitor primary screen. 3. Click File>Open

spearit commented

2021-09-03 04:50:39 +02:00

Added subscriber: @spearit

blender-admin commented

2021-09-03 04:50:39 +02:00

#91229 was marked as duplicate of this issue

spearit commented

2021-09-03 05:10:19 +02:00

UPDATE: I played around with the positioning of the Blender window and found the following:

When I dragged the maximized Blender window on the primary monitor screen just a little (by about 20-30 pixels) so it was no longer maximized but still covered almost the whole screen, the error still occurred.
When I tried to reopen Blender and maximize its window, the error did not occur anymore.

My suspicion:

Whenever the error occurs, the file explorer window seems to be stuck in an opening loop touching the top border of the screen. When the error does not occur, the explorer window opens around the middle of the screen. Playing around with the position of the main Blender window may have affected the coordiantes where Blender opens the file explorer window, hence avoiding the trigger for the error.

UPDATE: I played around with the positioning of the Blender window and found the following: 1. When I dragged the maximized Blender window on the primary monitor screen just a little (by about 20-30 pixels) so it was no longer maximized but still covered almost the whole screen, the error still occurred. 2. When I tried to reopen Blender and maximize its window, the error did not occur anymore. My suspicion: Whenever the error occurs, the file explorer window seems to be stuck in an opening loop touching the top border of the screen. When the error does not occur, the explorer window opens around the middle of the screen. Playing around with the position of the main Blender window may have affected the coordiantes where Blender opens the file explorer window, hence avoiding the trigger for the error. ![blender crash1.png](https://archive.blender.org/developer/F10364512/blender_crash1.png) ![blender crash2.png](https://archive.blender.org/developer/F10364513/blender_crash2.png)

Pratik Borhade commented

2021-09-03 08:01:40 +02:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2021-09-03 08:01:40 +02:00

Hi, thanks for the report. No crash here when I set my secondary display to TV.

Can you please attach the crash logs?: https://docs.blender.org/manual/en/latest/troubleshooting/crash.html#crash-log

Steps I followed:

Extend the screen (secondary screen: TV)
Maximize window (Window -> Toggle window FullScreen
File -> Open

Can you please mention the arrangement of the windows?

Hi, thanks for the report. No crash here when I set my secondary display to TV. Can you please attach the crash logs?: https://docs.blender.org/manual/en/latest/troubleshooting/crash.html#crash-log Steps I followed: - Extend the screen (secondary screen: TV) - Maximize window (`Window -> Toggle window FullScreen` - `File -> Open` --- Can you please mention the arrangement of the windows? ![image.png](https://archive.blender.org/developer/F10364828/image.png)

Pratik Borhade commented

2021-09-03 08:01:49 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

spearit commented

2021-09-04 01:57:47 +02:00

Hi, thanks for looking into the issue.

Here are the logs after a crash: blender.crash.txt

Also, this is the arrangement in use:

Please let me know, if I can help you with more info.

Hi, thanks for looking into the issue. Here are the logs after a crash: [blender.crash.txt](https://archive.blender.org/developer/F10375115/blender.crash.txt) Also, this is the arrangement in use: ![kép.png](https://archive.blender.org/developer/F10375118/kép.png) Please let me know, if I can help you with more info.

Harley Acheson commented

2021-09-04 02:19:01 +02:00

Added subscriber: @Harley

Harley Acheson commented

2021-09-04 02:19:01 +02:00

Can you also test this with 3.0? It has a fix when multiple windows are in a vertical arrangement, and wondering if this might matter for you with such a difference in the tops and bottoms of your two. We have that patch in a list of things to possibly backport to 2.93. So it would be awesome if you could test it. If it does nothing for you then we also know that this is not related.

Harley Acheson commented

2021-09-04 03:19:51 +02:00

@spearit wrote:
Also, this is the arrangement in use:

You said #1 is 4K, so 3,840 x 2,160? And #2 is 1920 x 1080? What is the Windows OS "Scale" of each? ie, are they both at 100% or do you set one higher?

When you extend your monitors like this you get a virtual desktop like the following, which is a little unusual:

Why do you have the bottom of #2 below that of #1? Does it make any difference if you drag that one up?

>@spearit wrote: > Also, this is the arrangement in use: > ![kép.png](https://archive.blender.org/developer/F10375118/kép.png) You said #1 is 4K, so 3,840 x 2,160? And #2 is 1920 x 1080? What is the Windows OS "Scale" of each? ie, are they both at 100% or do you set one higher? When you extend your monitors like this you get a virtual desktop like the following, which is a little unusual: ![desktop.png](https://archive.blender.org/developer/F10375206/desktop.png) Why do you have the bottom of #2 below that of #1? Does it make any difference if you drag that one up?

Pratik Borhade commented

2021-09-08 10:53:15 +02:00

Added subscriber: @Eligecos

spearit commented

2021-09-11 00:41:34 +02:00

You said #1 is 4K, so 3,840 x 2,160? And #2 is 1920 x 1080? What is the Windows OS "Scale" of each? ie, are they both at 100% or do you set one higher?

When you extend your monitors like this you get a virtual desktop like the following, which is a little unusual:

Why do you have the bottom of #2 below that of #1? Does it make any difference if you drag that one up?

Screen arrangement and resolutions are as you say. However, #1 scale is at 225% to make up for the small icons on the 4K screen. The fullHD screen's scale is at 100%.
The screen arrangement represents how my TV and the monitor screens are positioned in the real world. As such, the mouse cursor passage between the two is accurately aligned.
I have downloaded and run Blender 3.0 to test it and it does not produce the error. Note though, that this time I cannot reproduce the errror even when using Blender 2.9xx. AFAIK I did not made changes to the system.

> You said #1 is 4K, so 3,840 x 2,160? And #2 is 1920 x 1080? What is the Windows OS "Scale" of each? ie, are they both at 100% or do you set one higher? > > When you extend your monitors like this you get a virtual desktop like the following, which is a little unusual: > > ![desktop.png](https://archive.blender.org/developer/F10375206/desktop.png) > > Why do you have the bottom of #2 below that of #1? Does it make any difference if you drag that one up? 1. Screen arrangement and resolutions are as you say. However, #1 scale is at 225% to make up for the small icons on the 4K screen. The fullHD screen's scale is at 100%. 2. The screen arrangement represents how my TV and the monitor screens are positioned in the real world. As such, the mouse cursor passage between the two is accurately aligned. 3. I have downloaded and run Blender 3.0 to test it and it does not produce the error. Note though, that this time I cannot reproduce the errror even when using Blender 2.9xx. AFAIK I did not made changes to the system.

Harley Acheson commented

2021-09-11 01:30:07 +02:00

@spearit - Thanks for the details. And I certainly appreciate any help you can provide to help with this.

2.93 was our first version where windows (parent or child) are saved and loaded in a way that works properly on multiple monitors on the Windows platform. Before that Blender would also just launch on the main monitor and any children would open in the same monitor as the parent.

This worked great when monitors were arranged horizontally but exposed an issue when there was a vertical disparity between them, especially if any are above any others. This was fixed in 3.0 and is now backported to 2.93 for the next LTS release of that line. Should be 2.93.5

3.0 is also our first version where placement of windows will also take into account the increased size of window chrome when you set the OS scaling higher than 100% - the titlebar gets wider, which impacts on the calculation of its location. That could also possibly affect you here too.

So I am glad you are not seeing the issue with 3.0, but can't really pinpoint this problem unless you see it again in 2.93 so keep us posted.

@spearit - Thanks for the details. And I certainly appreciate any help you can provide to help with this. 2.93 was our first version where windows (parent or child) are saved and loaded in a way that works properly on multiple monitors on the Windows platform. Before that Blender would also just launch on the main monitor and any children would open in the same monitor as the parent. This worked great when monitors were arranged horizontally but exposed an issue when there was a vertical disparity between them, especially if any are above any others. This was fixed in 3.0 and is now backported to 2.93 for the next LTS release of that line. Should be 2.93.5 3.0 is also our first version where placement of windows will also take into account the increased size of window chrome when you set the OS scaling higher than 100% - the titlebar gets wider, which impacts on the calculation of its location. That could also possibly affect you here too. So I am glad you are not seeing the issue with 3.0, but can't really pinpoint this problem unless you see it again in 2.93 so keep us posted.

Garek commented

2022-01-22 10:03:47 +01:00

Added subscriber: @Garek

Garek commented

2022-01-22 10:03:47 +01:00

@spearit hi, can you update us on this?
Did you catch issue again on 2.93 (prior to 2.93.5)?
Can you check latest 3.1.0 alpha to see if issue is here?
https://builder.blender.org/download/daily/

@spearit hi, can you update us on this? Did you catch issue again on 2.93 (prior to 2.93.5)? Can you check latest 3.1.0 alpha to see if issue is here? https://builder.blender.org/download/daily/

spearit commented

2022-01-22 16:46:55 +01:00

@Garek , I have been using Blender 2.93.3 with the above described display configuration and as far as I remember there were maybe one or two occasions when the error happened. Since it was so rare and I could not reproduce them, I did not bother to report them. I am not aware of any changes that I made to my system, which may have caused the error to occur fewer times.

Now I downloaded 3.1.0 alpha and clicked around in an effort to summon the error, but it has not reared its head, so it seems the alpha is either more resistant or completely immune to it under my screen configuration.

@Garek , I have been using Blender 2.93.3 with the above described display configuration and as far as I remember there were maybe one or two occasions when the error happened. Since it was so rare and I could not reproduce them, I did not bother to report them. I am not aware of any changes that I made to my system, which may have caused the error to occur fewer times. Now I downloaded 3.1.0 alpha and clicked around in an effort to summon the error, but it has not reared its head, so it seems the alpha is either more resistant or completely immune to it under my screen configuration.

Garek commented

2022-01-22 16:59:50 +01:00

Changed status from 'Needs User Info' to: 'Resolved'

Garek closed this issue

2022-01-22 16:59:50 +01:00

Garek self-assigned this 2022-01-22 16:59:50 +01:00

Garek commented

2022-01-22 16:59:50 +01:00

Thanks for an answer. I think it's better to close this task then. If this issue will appear again in 3.1.0 let us know there.

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Blender crashes on opening file explorer window (Open, Save as, Import, Export) #91149