Window blink black when Toggle window fullscreen switch back #62780

New Issue

Robert Zhang · 2019-03-20T15:03:40+01:00

Robert Zhang commented

2019-03-20 15:03:40 +01:00

System Information
Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: GeForce GTX 980 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 388.13

Blender Version
Broken: version: 2.80 (sub 50), branch: master, commit date: 2019-03-18 21:39, hash: d47f827019
Worked: (optional)

Short description of error
Window blink blink black when Toggle window fullscreen switch back, by another way to say, Toggle winows fullscreen, click Alt + Tab back will blink black screen.

**System Information** Operating system: Windows-10-10.0.17763 64 Bits Graphics card: GeForce GTX 980 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 388.13 **Blender Version** Broken: version: 2.80 (sub 50), branch: master, commit date: 2019-03-18 21:39, hash: `d47f827019` Worked: (optional) **Short description of error** Window blink blink black when Toggle window fullscreen switch back, by another way to say, Toggle winows fullscreen, click Alt + Tab back will blink black screen.

Robert Zhang commented

2019-03-20 15:03:40 +01:00

Added subscriber: @zhanghua

Robert Zhang commented

2019-03-20 15:08:44 +01:00

Toggle winows fullscreen, click Alt + Tab to switch back, move mouse will blink black screen.

Sebastian Parborg commented

2019-03-20 17:30:47 +01:00

Added subscriber: @ZedDB

Sebastian Parborg commented

2019-03-20 17:30:47 +01:00

Your driver is severely outdated. Please download and install the latest nvidia drivers and try again.

Robert Zhang commented

2019-03-20 17:56:32 +01:00

Just update driver to NVIDIA 419.35, still blink black when Alt+Tab switch blender back, other any application in fullscreen haven't this problem.

db commented

2019-03-20 18:18:44 +01:00

Added subscriber: @browneggz

db commented

2019-03-20 18:18:44 +01:00

Another dupe of #59802 ?

Sebastian Parborg commented

2019-03-20 18:23:58 +01:00

Added subscriber: @LazyDodo

Sebastian Parborg commented

2019-03-20 18:23:58 +01:00

@LazyDodo can you reproduce?

Robert Zhang commented

2019-03-20 18:31:06 +01:00

In #62780#645091, @browneggz wrote:
Another dupe of #59802 ?

I reproduce you problem, that is a same isue maybe when get system fullscreen api.

> In #62780#645091, @browneggz wrote: > Another dupe of #59802 ? I reproduce you problem, that is a same isue maybe when get system fullscreen api.

db commented

2019-03-20 18:59:46 +01:00

In #62780#645102, @zhanghua wrote:
I reproduce you problem, that is a same isue maybe when get system fullscreen api.

It's not my report originally, just referencing it as it has a lot more activity from other users...

I suspect both the flickering and the hidden windows are related to the same cause, which seems to be something to do with how 2.8 handles fullscreen on Win 10. My guess is 2.79 makes a borderless window and 2.8 goes into a proper fullscreen context? Or the driver is forcing it into a different context. Devs obviously know more about it.

> In #62780#645102, @zhanghua wrote: > I reproduce you problem, that is a same isue maybe when get system fullscreen api. It's not my report originally, just referencing it as it has a lot more activity from other users... I suspect both the flickering and the hidden windows are related to the same cause, which seems to be something to do with how 2.8 handles fullscreen on Win 10. My guess is 2.79 makes a borderless window and 2.8 goes into a proper fullscreen context? Or the driver is forcing it into a different context. Devs obviously know more about it.

Ray molenkamp commented

2019-03-20 23:06:40 +01:00

Added subscribers: @fclem, @mano-wii

Ray molenkamp commented

2019-03-20 23:06:40 +01:00

I can reproduce, but the instructions for reproduction were somewhat 'unclear'

Start Blender with Factory Defaults
Select Window->Toggle Full Screen
Play with the UI a bit just to be sure it works (optional)
Alt-Tab out of blender.
Alt-Tab back into blender.
Move the mouse cursor over any UI element that will trigger a redraw (button, slider , anything)
Observe a single black frame before the UI renders fully

@mano-wii or @fclem can probably figure out whats going on with renderdoc

I can reproduce, but the instructions for reproduction were somewhat 'unclear' 1) Start Blender with Factory Defaults 2) Select Window->Toggle Full Screen 3) Play with the UI a bit just to be sure it works (optional) 4) Alt-Tab out of blender. 5) Alt-Tab back into blender. 6) Move the mouse cursor over any UI element that will trigger a redraw (button, slider , anything) 7) Observe a single black frame before the UI renders fully @mano-wii or @fclem can probably figure out whats going on with renderdoc

Clément Foucault was assigned by Sebastian Parborg

2019-03-21 09:30:27 +01:00

db commented

2019-03-21 15:53:45 +01:00

@LazyDodo are you able to confirm the issue when opening the preferences window too? E.g. the window appears behind/invisible, but is actually there and clickable? It seems to be about 80% of the time, if done repeatedly.

I also noticed when using Blender for a while in Fullscreen that when some of these flickers occur, an outdated image appears on the screen, like it's displaying the 3D view from minutes before from a cache or something. It can happen when switching the display to rendered or lookdev...

Would a video be of any help?

@LazyDodo are you able to confirm the issue when opening the preferences window too? E.g. the window appears behind/invisible, but is actually there and clickable? It seems to be about 80% of the time, if done repeatedly. I also noticed when using Blender for a while in Fullscreen that when some of these flickers occur, an outdated image appears on the screen, like it's displaying the 3D view from minutes before from a cache or something. It can happen when switching the display to rendered or lookdev... Would a video be of any help?

Ray molenkamp commented

2019-03-21 16:00:47 +01:00

Please don't conflate multiple issues into a single ticket, it'll just muddy the waters. Sounds like a duplicate of #57648 (same problem, different window)

Ray molenkamp commented

2019-03-21 16:01:18 +01:00

not sure why phab decided to change prio.

db commented

2019-03-21 16:14:26 +01:00

@LazyDodo apologies, wasn't my intention. Just seemed that whatever is causing the flicker and the other windows/message boxes being hidden were both related to the same issue, as the fullscreen behaviour seems different compared to 2.79. I see a very similar flicker other applications/games that use a fullscreen context instead of a borderless window.

db commented

2019-04-02 14:29:39 +02:00

Forgive cross-posting on this one, but the other task is unassigned so I don't know if it'll get seen.

I've made a diff that changes the window style flags and solves both the flickering and hidden windows issues (for me at least). I mentioned it in #59802 - would it be ok to submit it? Needs testing on systems where the issue isn't present, which is something I can't do unfortunately.

Forgive cross-posting on this one, but the other task is unassigned so I don't know if it'll get seen. I've made a diff that changes the window style flags and solves both the flickering and hidden windows issues (for me at least). I mentioned it in #59802 - would it be ok to submit it? Needs testing on systems where the issue isn't present, which is something I can't do unfortunately.

Ray molenkamp commented

2019-04-02 17:47:10 +02:00

putting a diff in a ticket is almost a sure way to have it overlooked, please submit the a diff for review either [here ]] or if possible using [ https:*wiki.blender.org/wiki/Tools/CodeReview#Use_Arcanist | arcanist

putting a diff in a ticket is almost a sure way to have it overlooked, please submit the a diff for review either [here ]] or if possible using [[ https:*wiki.blender.org/wiki/Tools/CodeReview#Use_Arcanist | arcanist ](https:*developer.blender.org/differential/diff/create/)

blender-admin commented

2019-04-03 16:01:20 +02:00

This issue was referenced by c6d1ae2f8a

This issue was referenced by c6d1ae2f8aa246c009e3cbace0ab0860be8acf3a

Brecht Van Lommel commented

2019-04-03 18:06:40 +02:00

Changed status from 'Open' to: 'Resolved'

Brecht Van Lommel closed this issue

2019-04-03 18:06:40 +02:00

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Window blink black when Toggle window fullscreen switch back #62780