@Anonymous wrote:
I also have Space Desk installed so I can use my laptop as a secondary monitor and MSI Afterburner for overclocking the graphics cards.
Do you know if SLI setups can cause issues with Fusion 360?
I hate to sound generically "paranoid engineer," but all of the above are suspect.
In my brief search through Space Desk's documentation, it wasn't immediately clear to me how the virtual display exists in Windows, but in the past I have seen software-based GPUs (e.g. using DisplayLink signal compression, etc) struggle with Fusion on start up, and these devices were fine if the display was connected after Fusion 360 was initialized. We've since traced this to an OpenGL API issue, and since your event log calls out Nvidia's OpenGL implementation specifically, this seems like a clue.
The fix/workaround requires overriding the OpenGL implementation used by the Qt application framework to a newer, but possibly less-stable approach. I mention this because Qt is utilized by many apps, not just Fusion 360, so there is a chance for this tweak to ripple beyond Fusion, however positive or negative the effect.
- Right-click on My Computer/This PC on the Desktop or in the Start Menu and select “Properties”
- In the left column of the System window that appears, select “Advanced System Settings”
- Within the System Properties window that appears, click “Environment Variables” in the bottom right
- Within Environment Variables, click “New…” under the System Variables section
- For Variable Name, enter QT_OPENGL
- For Variable Value, enter angle
- An alternate option to try for Variable Value is software - edit the aforementioned variable rather than creating a new entry
- Click OK to save the new variable
- Launch Fusion 360

Undoing this change is as simple as selecting the variable you've created from the table, and clicking Delete.
Overclocking and tweaking tools like MSI Afterburner, or even just going too heavy-handed with 3D overrides in the Nvidia Control Panel or Radeon Adrenalin, will cause instability now and then. It's always worth disabling these while troubleshooting, just to rule out compounding factors.
@Anonymous wrote:
Do you know if SLI setups can cause issues with Fusion 360?
Probably. I say that from the personal perspective that SLI/Crossfire-type technology hasn't really seen mainstream support inside or outside the gaming industry; the technology is not utilized in most workstations, which tend to utilize a single GPU. In short, linked GPUs could be a factor, simply because we do not see a lot of SLI/Crossfire configurations to know for certain.
Lance Carocci
Fusion QA for UI Framework/Cloud Workflows, and fervent cat enthusiast