the user preference window will be black after re-open blend files #46266

New Issue

Leroy · 2015-09-25T09:39:01+02:00

Leroy commented

2015-09-25 09:39:01 +02:00

System Information
Windows 7 64bit GeForce 9600 gt

Blender Version
Broken: 2.76 rc2 e24ea81

Worked: (optional)

the user preference window will be black after re-open blend files

if you press Ctrl+Alt+U pop user preference window, than save blender, by others word, if you save blender when preference window have opened by independent.
when you open the blend files again, you will find a black window with blender title, if not seen, please find it on your task bar at desktop bottom. So if you press Ctrl+Alt+U again or open from file menu, the user preference window will replace the black window, and sill black.
you can close black window before you open user preference, if not , it's will keep black.

I'm sure the black window not system Console, my English so poor, hope you can understand! even it's not influence work, but hope to fix, the old version have same problem, thanks:D

untitled2.blend

**System Information** Windows 7 64bit GeForce 9600 gt **Blender Version** Broken: 2.76 rc2 e24ea81 Worked: (optional) the user preference window will be black after re-open blend files 1. if you press Ctrl+Alt+U pop user preference window, than save blender, by others word, if you save blender when preference window have opened by independent. 2. when you open the blend files again, you will find a black window with blender title, if not seen, please find it on your task bar at desktop bottom. So if you press Ctrl+Alt+U again or open from file menu, the user preference window will replace the black window, and sill black. 3. you can close black window before you open user preference, if not , it's will keep black. I'm sure the black window not system Console, my English so poor, hope you can understand! even it's not influence work, but hope to fix, the old version have same problem, thanks:D [untitled2.blend](https://archive.blender.org/developer/F238891/untitled2.blend) ![56.png](https://archive.blender.org/developer/F238888/56.png)

Leroy commented

2015-09-25 09:39:01 +02:00

Changed status to: 'Open'

Leroy commented

2015-09-25 09:39:01 +02:00

Added subscriber: @Leroy-Xie

perfection cat commented

2015-09-25 09:56:58 +02:00

Added subscriber: @sindra1961

perfection cat commented

2015-09-25 09:56:58 +02:00

user-prefs screen is not displayed definitely when I open the blend file which you attached.
But it is not displayed black.
Please try whether you can reproduce it with the file which I attached.
untitled.blend

user-prefs screen is not displayed definitely when I open the blend file which you attached. But it is not displayed black. Please try whether you can reproduce it with the file which I attached. [untitled.blend](https://archive.blender.org/developer/F238897/untitled.blend)

perfection cat commented

2015-09-25 10:05:55 +02:00

Such a phenomenon does not occur except the file which you attached here.

Bastien Montagne commented

2015-09-25 10:40:41 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2015-09-25 10:40:41 +02:00

You have saved your file with an opened UserPref window, could be the reason of the issue?

Anyway, cannot reproduce here on linux, neither with intel emabed GPU nor nividia 850M one. This is most likely another GPU/driver issue, please:

Ensure both your OS and drivers are fully up-to-date.
For Windows 7, at least service pack 1 is mandatory, please ensure it is installed on your machine.
Try to start Blender in factory settings (--factory-startup commandline option) (this will ensure whether this is a userpref or addon issue or not).
Try to tweak OGL settings in UserPreferences, System tab.
Try to tweak your GPU driver settings (e.g. try different values between 'performance' and 'quality' if you have such slider, etc.).
Try to place this dll next to your blender.exe (software OGL, will be slow, but will show whether this is a driver issue or not).

You have saved your file with an opened UserPref window, could be the reason of the issue? Anyway, cannot reproduce here on linux, neither with intel emabed GPU nor nividia 850M one. This is most likely another GPU/driver issue, please: * Ensure both your OS and drivers are fully up-to-date. * For Windows 7, at least service pack 1 is mandatory, please ensure it is installed on your machine. * Try to start Blender in factory settings (`--factory-startup` commandline option) (this will ensure whether this is a userpref or addon issue or not). * Try to tweak OGL settings in UserPreferences, System tab. * Try to tweak your GPU driver settings (e.g. try different values between 'performance' and 'quality' if you have such slider, etc.). * Try to place [this dll](http://download.blender.org/ftp/sergey/softwaregl/win64/opengl32.dll) next to your blender.exe (software OGL, will be slow, but will show whether this is a driver issue or not).

Leroy commented

2015-09-25 10:50:26 +02:00

Ok, I am sorry , I have tryed again and again just a moment ago, and I am sure now, I lost one step on previous description.

after open the user preference Windows, and minimization that ( user preference), than save blend file. will cause that.

I have tryed others windows, just the windows independent and minimization when saved, it's will be black when open again, for example 3d view, outline editor, properties editor, and so on.

Ok, I am sorry , I have tryed again and again just a moment ago, and I am sure now, I lost one step on previous description. after open the user preference Windows, and minimization that ( user preference), than save blend file. will cause that. I have tryed others windows, **just the windows independent and minimization when saved, it's will be black when open again**, for example 3d view, outline editor, properties editor, and so on.

Leroy commented

2015-09-25 10:56:20 +02:00

@sindra1961 this is your file , sorry , I am lost one step on previous description
untitled (1).blend

@sindra1961 this is your file , sorry , I am lost one step on previous description [untitled (1).blend](https://archive.blender.org/developer/F238918/untitled__1_.blend)

Bastien Montagne commented

2015-09-25 11:01:41 +02:00

Yes, that’s what I suspected, but this remains a GPU/driver bug imho, please check points listed in my previous comment.

Leroy commented

2015-09-25 11:24:36 +02:00

Added subscriber: @ideasman42

Leroy commented

2015-09-25 11:24:36 +02:00

@ideasman42 @mont29 I am think it not the opengl error, if i am not minimization, it no problem, just happened in minimization, and the black windows' s title will show the same path( if not user preference, will show the path, for example 3D view in previous version). more like opened twice

@ideasman42 @mont29 I am think it not the opengl error, if i am not minimization, it no problem, just happened in minimization, and the black windows' s title will show the same path( if not user preference, will show the path, for example 3D view in previous version). more like opened twice ![5555.png](https://archive.blender.org/developer/F238927/5555.png)

Bastien Montagne commented

2015-09-25 11:59:49 +02:00

@Leroy-Xie can you please check points listed in my first comment?

@Leroy-Xie can you please **check points listed in my first comment**?

Leroy commented

2015-09-25 12:18:29 +02:00

@mont29 , I know your meaning, and try, the system is win7 sp1 64bit, blender is default, the driver is normal, and I have try the dll file, and even do it on my friend computer, the problem is still appear.

the problem happened as follows:

open the blender, open the user preference window or others Windows by shift+LMB drag from editor( make the editor floating ), than minimum float window, make sure minimum, save your blend file at last.
re-open you saved file, you will find the float Windows have been black, if not seen, please find it on your task bar at desktop bottom.

this problem only happened when you put the floating window minimum before you save.

Maybe you feel I wordily, but this not like OpenGL error, I have reproduce it on others computer, Please try again just take one minute. thanks!

@mont29 , I know your meaning, and try, the system is win7 sp1 64bit, blender is default, the driver is normal, and I have try the dll file, and even do it on my friend computer, the problem is still appear. the problem happened as follows: 1. open the blender, open the user preference window or others Windows by shift+LMB drag from editor( make the editor floating ), than minimum float window, make sure minimum, save your blend file at last. 2. re-open you saved file, you will find the float Windows have been black, if not seen, please find it on your task bar at desktop bottom. this problem only happened when you put the floating window minimum before you save. Maybe you feel I wordily, but this not like OpenGL error, I have reproduce it on others computer, Please try again just take one minute. thanks!

perfection cat commented

2015-09-26 03:29:09 +02:00

I cannot reproduce this here.

I cannot reproduce this here. ![untitled.png](https://archive.blender.org/developer/F239292/untitled.png)

Leroy commented

2015-09-26 06:49:07 +02:00

@sindra1961 To explain clearly, I have record one video, you can download at below, just happened with floating panel minimum before you saved, please try again, I have test this on three computers, all happened, also test with the DLL file by Bastien Montagne, very thanks! sorry my bad English
test video.mp4

@sindra1961 To explain clearly, I have record one video, you can download at below, **just happened with floating panel minimum before you saved**, please try again, I have test this on three computers, all happened, also test with the DLL file by Bastien Montagne, very thanks! sorry my bad English [test video.mp4](https://archive.blender.org/developer/F239349/test_video.mp4)

perfection cat commented

2015-09-26 08:28:02 +02:00

I understood a method to reproduce it to see the animation which you attached, but might not know it.
Though I closed blender, other windows are not closed.
I seem to fail that blender reproduces that I made a different window when I stored a file.
I think that it is not necessary to open the different window when I opened the recent file.

I understood a method to reproduce it to see the animation which you attached, but might not know it. Though I closed blender, other windows are not closed. I seem to fail that blender reproduces that I made a different window when I stored a file. I think that it is not necessary to open the different window when I opened the recent file.

perfection cat commented

2015-09-26 08:44:17 +02:00

This has no grounds by my guess.
I think that this is because it is not child process, and it is an independent process that a different window is not closed.
When I opened the recent file, blender may refer to a process when it was saved.

This has no grounds by my guess. I think that this is because it is not child process, and it is an independent process that a different window is not closed. When I opened the recent file, blender may refer to a process when it was saved.

perfection cat commented

2015-09-26 09:37:18 +02:00

This comment was removed by @sindra1961

*This comment was removed by @sindra1961*

perfection cat commented

2015-09-26 09:40:32 +02:00

I'm sorry, I deleted it because I wrote some matter of course.

Leroy commented

2015-09-26 09:49:45 +02:00

I have closed others windows( disabled all blender running), than open it.
I don't know blender how to work in many Windows, something like duplicate Windows(CTRL+Alt+W), if have many Windows, will appear many Application in Task Manager,but the progress have only one.

I'm agree with you it's not child process, if the black windows is the user preference(previous version), when you close main blender, it's wil close automatic, but if the black Windows not user preference(for example, floating 3d viewer, outline editor and so on , produced by preview version), when you close main blender, it's still opening.

just my idea, but it's really don't like opengl wrong, at least, I have test the DLL file and just the black Windows become gray, still nothing :P

I have closed others windows( disabled all blender running), than open it. I don't know blender how to work in many Windows, something like duplicate Windows(CTRL+Alt+W), if have many Windows, will appear many Application in Task Manager,but the progress have only one. I'm agree with you it's not child process, if the black windows is the user preference(previous version), when you close main blender, it's wil close automatic, but if the black Windows not user preference(for example, floating 3d viewer, outline editor and so on , produced by preview version), when you close main blender, it's still opening. just my idea, but it's really don't like opengl wrong, at least, I have test the DLL file and just the black Windows become gray, still nothing :P

perfection cat commented

2015-09-26 10:44:06 +02:00

You make one floating window and then save it.
And you close floating window.
You open the file which you saved in main window of blender.
You can reproduce this by this method.

You make one floating window and then save it. And you close floating window. You open the file which you saved in main window of blender. You can reproduce this by this method.

Leroy commented

2015-09-26 11:48:53 +02:00

@sindra1961 lost one step, if not make floating window minimum, will not black. So happen with:

make floating window and minimum floating Windows, than save
close blender and others floating Windows,
open file which you previous saved,
the floating Windows will be black, if not seen, can find at task bar

@sindra1961 lost one step, if not make floating window minimum, will not black. So happen with: 1. make floating window and minimum floating Windows, than save 2. close blender and others floating Windows, 3. open file which you previous saved, 4. the floating Windows will be black, if not seen, can find at task bar

Vuk Gardašević commented

2015-09-26 12:52:31 +02:00

Added subscriber: @VukGardasevic

Vuk Gardašević commented

2015-09-26 12:52:31 +02:00

Can recreate on Windows 7 Home Premium 64 bit on Amd 760G (HD 3000). Factory settings, Software OpenGL. (opengl32.dll)

Saving the starting file with the Preferences window minimized, closing and opening again blender and reloading the saved file.

Tested on b'79c668d', b'Release' and 2.76 RC2.

Can recreate on Windows 7 Home Premium 64 bit on Amd 760G (HD 3000). Factory settings, Software OpenGL. (opengl32.dll) Saving the starting file with the Preferences window minimized, closing and opening again blender and reloading the saved file. Tested on b'79c668d', b'Release' and 2.76 RC2.

Brendon Murphy commented

2015-09-26 16:01:24 +02:00

Added subscriber: @BrendonMurphy

Brendon Murphy commented

2015-09-26 16:01:24 +02:00

I'll confirm this too,
Operating system and graphics card
Win 7 64
Processor Intel(R) Core(TM) i5 CPU M 540 @ 2.53GHz, 2534 Mhz, 2 Core(s), 4 Logical Processor(s)
Graphics Chipset ATI Mobility Radeon HD 5650

System Info text: http://www.pasteall.org/61275/text

Blender Version
Broken: Blender-2.76.0-git.034cc85-AMD64

I'll confirm this too, Operating system and graphics card Win 7 64 Processor Intel(R) Core(TM) i5 CPU M 540 @ 2.53GHz, 2534 Mhz, 2 Core(s), 4 Logical Processor(s) Graphics Chipset ATI Mobility Radeon HD 5650 System Info text: http://www.pasteall.org/61275/text Blender Version Broken: Blender-2.76.0-git.034cc85-AMD64

perfection cat commented

2015-09-28 03:08:08 +02:00

@Leroy-Xie:
Oh, I did not write that I minimized floating window.
It is required to close floating window, but it is not necessary to close blender.

make floating window and minimum floating Windows, than save.
close others floating Windows,

open file which you previous saved,

When reopen does a file from the floating window that was left after you leave floating window in the second procedure and close only blender, this problem does not occur.

@Leroy-Xie: Oh, I did not write that I minimized floating window. It is required to close floating window, but it is not necessary to close blender. - make floating window and minimum floating Windows, than save. - **close others floating Windows,** # open file which you previous saved, When reopen does a file from the floating window that was left after you leave floating window in the second procedure and close only blender, this problem does not occur.

Leroy commented

2015-09-28 06:16:10 +02:00

@sindra1961 I test again as you description and I found something interesting

when saved after minimum floating Windows, than close floating Windows( not main blender ), and open again from recent files, you will find the floating Windows not be black(sometimes still be black ), maybe it's right, but you can't change anything in the floating Windows. so it's still "black" , like the screen cache.

very thanks you can care about this, sorry make trouble for you! only want to say this really don't like OpenGL error !

and thanks to @VukGardasevic and @BrendonMurphy could test that :P

@sindra1961 I test again as you description and I found something interesting when saved after minimum floating Windows, than close floating Windows( not main blender ), and open again from recent files, you will find the floating Windows not be black(sometimes still be black ), maybe it's right, but you can't change anything in the floating Windows. so it's still "black" , like the screen cache. very thanks you can care about this, sorry make trouble for you! only want to say this really don't like OpenGL error ! and thanks to @VukGardasevic and @BrendonMurphy could test that :P

perfection cat commented

2015-09-28 09:22:40 +02:00

It was set to 0 when I checked width of screen.area of the floating window when I reopened a file.
bpy.context.window_manager.windows- [ ]. screen.areas- [ ]. width

It was set to 0 when I checked width of screen.area of the floating window when I reopened a file. **bpy.context.window_manager.windows- [ ]. screen.areas- [ ]. width**

Leroy commented

2015-09-28 11:50:26 +02:00

@sindra1961 I'm sorry , I don't understand programming, thanks your careful, I hope my feedback can help you.

perfection cat commented

2015-09-29 03:27:58 +02:00

@Leroy-Xie:
When developers watched it, it may be useful information.
Therefore you do not have to mind it.

@Leroy-Xie: When developers watched it, it may be useful information. Therefore you do not have to mind it.

perfection cat commented

2015-09-30 01:49:28 +02:00

In #46266#338181, @sindra1961 wrote:
It was set to 0 when I checked width of screen.area of the floating window when I reopened a file.
bpy.context.window_manager.windows- [ ]. screen.areas- [ ]. width

I revise a report about above-mentioned screen.area.width.
When I reopened the saved file, this value is set to 1.
The floating window is minimized then.
Then this value is set to 0 when I returned floating window to original size.

> In #46266#338181, @sindra1961 wrote: > It was set to 0 when I checked width of screen.area of the floating window when I reopened a file. > **bpy.context.window_manager.windows- [ ]. screen.areas- [ ]. width** I revise a report about above-mentioned screen.area.width. When I reopened the saved file, this value is set to 1. The floating window is minimized then. Then this value is set to 0 when I returned floating window to original size.

Bastien Montagne commented

2015-10-08 10:24:13 +02:00

Sounds like yet another driver bug…

Brendon Murphy commented

2015-10-08 11:38:55 +02:00

sounds like another driver bug, but I can confirm now with fully updated drivers.
syst info: system-info.txt

edit image of console/version:

sounds like another driver bug, but I can confirm now with fully updated drivers. syst info: [system-info.txt](https://archive.blender.org/developer/F243374/system-info.txt) edit image of console/version: ![user prefs start up.jpg](https://archive.blender.org/developer/F243375/user_prefs_start_up.jpg)

Brendon Murphy commented

2015-10-08 12:45:49 +02:00

to explain exact steps again to reproduce this error:

1/ Open Blender
2/ Press Ctrl+Alt+U
3/ Minimize user prefs window to Windows taskbar.
4/ Save user defaults & user settings.
5/ Close Blender
6/ Restart Blender

After following these steps, the user prefs window is black every time blender is opened . (user prefs window saved in ctrl/u whilst minimized)
This error will not occur if userprefs window is saved as start up whilst maximized. (if you save preferences & the user prefs window is open & not minimized, the error will not occur.)

to explain exact steps again to reproduce this error: 1/ Open Blender 2/ Press Ctrl+Alt+U 3/ Minimize user prefs window to Windows taskbar. 4/ Save user defaults & user settings. 5/ Close Blender 6/ Restart Blender After following these steps, the user prefs window is black every time blender is opened . (user prefs window saved in ctrl/u whilst minimized) This error will not occur if userprefs window is saved as start up whilst maximized. (if you save preferences & the user prefs window is open & not minimized, the error will not occur.)

perfection cat commented

2015-10-09 04:27:06 +02:00

@mont29:
I think that this is not driver bug.
1.Run blender.

2.Make floating window

3.Minimize main window, and save it in floating window.

4.Open up main window, and close only main window with a closing button of the top right corner.
5.Reopen stored file using left floating window.

The open main window does not work normally.

The width of the screen area of the open main window is not set definitely.

@mont29: I think that this is not driver bug. 1.Run blender. ![sc1.png](https://archive.blender.org/developer/F243564/sc1.png) 2.Make floating window ![sc2.png](https://archive.blender.org/developer/F243566/sc2.png) 3.Minimize main window, and save it in floating window. ![sc3.png](https://archive.blender.org/developer/F243568/sc3.png) 4.Open up main window, and close only main window with a closing button of the top right corner. 5.Reopen stored file using left floating window. ![sc4.png](https://archive.blender.org/developer/F243572/sc4.png) The open main window does not work normally. ![sc5.png](https://archive.blender.org/developer/F243574/sc5.png) The width of the screen area of the open main window is not set definitely. ![sc6.png](https://archive.blender.org/developer/F243576/sc6.png)

perfection cat commented

2015-10-09 04:43:52 +02:00

If main window is not minimized when it is saved, this phenomenon does not occur.
I reboot blender, and this phenomenon does not occur when I open the stored file.
However, I reboot blender and make floating window and close only main window, and this phenomenon occurs when I open the stored file.

If main window is not minimized when it is saved, this phenomenon does not occur. I reboot blender, and this phenomenon does not occur when I open the stored file. However, I reboot blender and make floating window and close only main window, and this phenomenon occurs when I open the stored file.

perfection cat commented

2015-10-10 04:23:04 +02:00

The following error message is output when I run blender with debug-gpu.
GL: Possible context invalidation issue
When I save a file and closed only main window, this message is output.
This is not output even if I close only main window without saving a file.

The following error message is output when I run blender with debug-gpu. **GL: Possible context invalidation issue** When I save a file and closed only main window, this message is output. This is not output even if I close only main window without saving a file.

Aaron Carlisle commented

2015-11-26 00:46:18 +01:00

Added subscriber: @Blendify

Aaron Carlisle commented

2015-11-26 00:46:18 +01:00

The same fix I proposed for #35983 will work here.

One possible way to fix this is that the user preference window should not be saved. This way Blender will not be re opening the user preferences window. This seems like a reasonable thing to do since a user does not really need it open still unlike duplicating other Windows. Does anyone have any objections or comments on this type of fix?

The same fix I proposed for #35983 will work here. >One possible way to fix this is that the user preference window should not be saved. This way Blender will not be re opening the user preferences window. This seems like a reasonable thing to do since a user does not really need it open still unlike duplicating other Windows. Does anyone have any objections or comments on this type of fix?

Terry Morgan commented

2016-03-04 14:59:27 +01:00

Added subscriber: @terrymorgan

Terry Morgan commented

2016-03-04 14:59:27 +01:00

My user prefs in 2.76b were black until I saved the file to a new name and reloaded, then they were visible.

marco cheng ka chun commented

2016-06-04 17:05:03 +02:00

Added subscriber: @MarcoCheng

marco cheng ka chun commented

2016-06-04 17:05:03 +02:00

ya i have the same problem with the latest 2.77a version blender too. Some weird artifact on that mystery black windows
![$MYJAX)1QQ]E3@OBXXD~}U.png

ya i have the same problem with the latest 2.77a version blender too. Some weird artifact on that mystery black windows ![$MYJAX)1QQ]E3@[OBXXD~}U.png](https://archive.blender.org/developer/F315996/_MYJAX_1QQ_E3__OBXXD__U.png)

marco cheng ka chun commented

2016-06-04 17:05:07 +02:00

This comment was removed by @MarcoCheng

*This comment was removed by @MarcoCheng*

Vuk Gardašević commented

2016-09-28 21:24:50 +02:00

Still can be recreated on dbb8222 Win 7, R7 360.

The System option Region Overlap needs to be on when saving the minimized window.

Still can be recreated on dbb8222 Win 7, R7 360. The System option Region Overlap needs to be on when saving the minimized window.

Mike Erwin commented

2016-09-30 14:54:57 +02:00

Added subscriber: @MikeErwin

Mike Erwin commented

2016-09-30 14:54:57 +02:00

Just confirmed on Win 10 with both Quadro K600 and FirePro W7100. Those have drivers written by totally independent (& rival) teams.

This is not a driver bug, it's a Blender bug.

And it's not limited to the User Prefs window. Create another 3D View window for example, minimize & save. It will be black when loaded.

Just confirmed on Win 10 with both Quadro K600 and FirePro W7100. Those have drivers written by totally independent (& rival) teams. This is **not** a driver bug, it's a Blender bug. And it's not limited to the User Prefs window. Create another 3D View window for example, minimize & save. It will be black when loaded.

Joss Smith commented

2016-10-15 12:03:04 +02:00

Added subscriber: @JossSmith

Lukas Tönne commented

2016-12-05 09:30:38 +01:00

Closed as duplicate of #42489

Lukas Tönne closed this issue

2016-12-05 09:30:38 +01:00

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the user preference window will be black after re-open blend files #46266

open file which you previous saved,