Issue with new Dell Precision 7780 displaying zoomed drawing

[MRWakefield]

I'm having a display issue with my brand new system. Any drawing I've created looks fine either zoomed fully out or with a small amount of zoom. If I zoom in further though all the vectors disappear and 'blobs' appear at each of the vertices. Here are some screenshots showing what I mean:

This is what I see when zoomed out:

This is what I see if I zoom in a bit:

If I zoom in more I see this:

Has anyone else experienced this before? I've tried all the graphics driver options in the Fusion settings, swapped which GPU it's using (between Intel on-board and the NVidia RTX3500 ADA) and updated the NVidia drivers to the latest version, all to no avail.

Anybody got any ideas?

[simsworx]

I have seen the same before, but only while sketching in the drawing environment. (7680 w/ RTX2000)

As it's always occurred, I didn't think it was an issue. (Found work arounds.) I do know that zooming works acceptably at this point.

I'll drill a little deeper and see if I can reproduce.

Edit - I am able to zoom with no issues.

[HughesTooling]

There's another post on the first page of the support form with the same problem.

https://forums.autodesk.com/t5/fusion-support/when-zoom-missing-line-in-drawing-i-see-only-points/m-...

[MRWakefield]

Thanks @HughesTooling. I saw that this morning and was about to reply when I had an urgent call and I had to run my wife to hospital as she'd had a needlestick injury at work. I'll add info to the other thread as it's a bit older and already has some attention from AD. Thanks again.

[MRWakefield]

Thanks @simsworx. It doesn't seem to be affecting sketches, only drawings. I turned off 'Display Line Widths' and the issue doesn't occur.

[HughesTooling]

As I said in the other thread, is Fusion using the correct card if you check Fusion's graphics diagnostics?

[MRWakefield]

It's using the NVidia card:

As you can see, it's using DirectX 11 but I've tried it in OpenGL mode as well and it has no effect on the issue.

[01gendo · Accepted solution]

Hello. - Hello.
I had the same problem, but found a solution on a Japanese forum.
It is in the environment variable section of the 14th message in the URL below.

https://forums.autodesk.com/t5/fusion-ri-ben-yu/2d-tu-miande-kuo-da-biao-shisuruto-byuno-xian-biao-s...

Quote.
Add environment variable
Please try adding an environment variable specifically for the drawing mode to see if the situation improves. The procedure is as follows
Click on the Windows Start menu and type "environment variables" to search
Select "Edit Environment Variables" in the search results to display the [Environment Variables] dialog box
[In the "Environment Variables" dialog, click "New" in the "User Environment Variables for (user name)" section
[The "New User Variable" dialog will appear.
Enter "GS_DEVICE" in the [Variable Name
[Enter "swDx11" in "Variable Value" and click "OK" to close the dialog box.
[Click "OK" to close the "Environment Variables" dialog
Start Fusion 360 and check the operation.
There are four other variable values that can be used for this variable name: "Dx11", "Dx12", "swDx12", and "OGL". If you do not see any change with "swDx11", please try the other four.

This is translated by DeepL.
May your problem be solved!

[MRWakefield]

You're a star!! Thank you for digging that out. A value of "swDx11" seems to have worked for me.