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Whole UI is flickering
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System Information
Operating system: Windows 10 Pro
Graphics card: Nvidia Geforce 1050TI 4gb

Blender Version-
Broken: 2.80 Beta, 07765499abee, 2019-02-05
Worked: (optional)

Short description of error
In the program without any preferences used when the cursor cross the border betwen separate interfaces e.g. betwen scene collections and properties. Flickering itself is noticeble but weak changing of brightness or color. At the closer look it seems like it is changing noise level, but not only in viewport but in whole UI. Flickers follows next order:

  1. Cursor is holds, nothing happened
  2. Cursor moves across the border of interfaces, whole ui is dim a bit, stands until the cursor stops.
  3. When the cursor stops a secons or less goes, and brightness come back as it was.

On the viewport it seems like the further the point from observer, the brighter the dim will be. It is also flickers when any actions with objects or observer happening.
If I start blender with internal gpu the problem disapears.
Exact steps for others to reproduce the error

  1. Start blender with external gpu.
  2. Set the observer angle of view the way that it will see the horizon, in the process flickering already should be noticeble.
  3. Move cursor around the interfaces, interact with viewport.

Event Timeline

This problem also exists in a current steam blender version (2.79b)

Sebastian Parborg (zeddb) lowered the priority of this task from 90 to 30.Feb 7 2019, 1:15 PM

So this does not happen if you run blender with your intel GPU?

Make sure both your intel drivers and nvidia drivers are up to date:

As you also have this issue with 2.79, this is very likely to be a driver issue.

Just updated everything, problem stays

Does it happen in 2.8 if you download this dll and copy it so its located in the same directory as 'blender.exe' and run Blender normally?

No, but it seems like my videocard doesnt involved that way

Well that dll forces software rendering. So if it doesn't happen with it. Your GPU is to blame for the flickering not blender.

Do you have any options forced on in the nvidia settings like AA/AF?

Anisotropic Filtering setting setup in control by application mode.
AA - FXAA - off
AA - gamma correction - on
AA - settings - control by application mode and this setting is not active, cant change it
AA - transparency - off
AA - mode - control by application

Can you see if messing around with any of the settings (not just the ones you listed) helps?

I tried to change separatly every setting that can be applied to blender, nothing changes

Sebastian Parborg (zeddb) changed the task status from Unknown Status to Unknown Status.Feb 9 2019, 2:40 PM
Sebastian Parborg (zeddb) claimed this task.

I don't think there is much more we can do here to help you. As it works with the software ,dll, this is not a blender issue.

Don't think I will get any help on nvidia forums as it is completely dead. But still thank you for your attention, never seen such fast tech support forums.

I'm just sad we couldn't find a solution to your problem... :c

Falco (Zyche) added a subscriber: Falco (Zyche).EditedAug 16 2019, 9:49 AM

Hey there,

I have exactly the same graphical issue. (Blender version 2.80.75)
My laptop is a HP Pavilion 17-ab422ng.
GPU Driver Information: Nvidia Studio Driver 431.70
All other drivers are up to date.

I tested 3 scenarios:

  1. set in the Nvidia Control System my GPU (1050 ti - GPU1) to Blender: same issue as above and my 1050 ti is in use (Taskmanager)
  2. set in the Nvidia Control System my iGPU (Intel UHD Graphics 630 - GPU0) to Blender: everything is ok, the issue is gone and my iGPU is in use
  3. used your opengl32.dll: everything is ok, the issue is gone and none of my GPUs are in use, only my CPU get all tasks.

So yeah, it is the GPU 1050 ti fault but how can we fix it, or can we just wait for a new Blender version and must pray that our issue is solved?
Is there a downside for the performance to use the iGPU or the opengl32.dll instead of the "more powerfull" 1050 ti?


Ok I discovered something today.
When I use Blender 2.80.75 with my 1050ti GPU on my Laptop-Display, I have the issue.
When I use it with my 1050ti GPU on a second monitor, connected via HDMI, the issue is not visible.
So maybe its a problem with the Intel UHD Display driver in combination with the 1050ti GPU (Nvidia driver).


in Blender "Window -> Toggle Window Fullscreen" worked for me. All credits to Gavin Scott (Zoot)

Michael (VpsK) added a subscriber: Michael (VpsK).EditedOct 14 2019, 9:56 AM

I have the same problem. Acer Aspire 5 A517-51G-57H9
Nvidia 940mx.

in Blender "Window -> Toggle Window Fullscreen" worked for me. All credits to Gavin Scott (Zoot)

Same problem on Lenovo IDEAPAD340 Intel UHD Graphics 630 + nVidia230 GPU

Had the same problem on my main monitor, did not happen on my other monitors, but it worked setting blender to fullscreen. Will there be a fix for this issue in the future?

I made an account just to leave this comment. I did some digging and it's a G-sync issue, it seems. I turned G-sync off and the problem disappeared. at least for now.

I also made an account just to leave my report. Same exact problem here.

OS: Windows 10 Home
Card: Nvidia GTX 2070
Computer: MSI Creator 17 A10SFS

The workaround "Window -> Toggle Window Fullscreen" worked for me too.

Same issue here on my Gigabyte Aero 15 running Windows 10 with an Nvidia RTX 3070. I don't see it on any other displays that I connect to my laptop, only on the laptop display.

Using the "Toggle Window Fullscreen" workaround has been successful, but it would be nice to have a solution regardless of whether or not I'm working in true fullscreen.

Same issue here on an Acer Predator Helios 300 g3-572. it has GTX 1060m and intel HD graphics 630, both with the latest drivers. Toggling full screen gets rid of the issue here too.