#Hey folks I’m having the strangest issue

1 messages · Page 1 of 1 (latest)

fervent comet
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here are my test conditions:

  • Windows 10, Version 10.0.19045 - 64 bits
  • 4k HDMI monitor
  • Keyboard and mouse, no other plugged peripheral
  • NVIDIA GeForce GTX 980 Ti
  • Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz 4.00 GHz
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Here are things I noticed:

  • The crash happens when I have a large plane or plane-like mesh.
  • The crash type seems random. Sometimes, the screen goes black but the computer appears to still run (no HDMI output). Sometimes, it’s a full crash and automatically reboots (no blue screen).
  • It took a while for me to locate the issue, at first it was because of a custom shader I made so I stopped using it. But I realized I was able to reproduce with a standard lit shader. Then, tried outside of URP with standard material. Crashes all around.
  • I thought it was the built in mesh, so I created a new custom one with different geometry. Same issue. I believe it’s related to mesh size.
  • I can consistently crash my computer by entering play mode with a large plane. Default settings, no changes to the camera or anything else.
  • I can get it to crash faster by maximizing the Player tab. It will crash eventually when not maximized.
  • Seen this bug in third party games, although not as consistent. Always in Unity games.
  • Never seen it in any computationally expensive application like Photoshop, after effects, blender… Games and Unity Editor only.
  • Tried several unity versions, 2021 and 2022. All crash.
  • URP and Built In render pipeline both crash.
  • I can’t seem to get logs or memory dumps. The reliability monitor sometimes shows the crashes, but pretty much only when I get a black screen. The entry says “Desktop Windows Manager stopped working”.
  • Sometimes, I can see a “Kernel-Power Event 41” in the event viewer. It has no info attached, and the internet said it’s PSU related but I bought a new one and the issue persists. Might just be “you held the power button and now I’m mad” logs.
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Here are things I tried to fix the issue:

  • Tested CPU, GPU, RAM, and PSU on my computer, all working normally. Replaced PSU, swapped/removed RAM, and I’m gonna swap the GPU next.
  • Tried clean installs. Both on a new SSD and on a new HDD. Tried older, non-problematic Windows install. No luck.
  • Clean install of drivers, BIOS update, windows update, clean install of Unity. Nothing worked.
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It seems independent of Unity version, windows install, etc. So I’m guessing it might be an issue with my GPU. However, this is the only place I ever see crashes. I can use this computer for days with very intensive software/games with no issue, but the moment I create a plane in Unity it suddenly crashes.

I’m at my wits end here, I can’t really justify buying a new GPU for a single bug in a single application (even though it’s my primary professional tool). I could really use guidance on how to either narrow down the cause and fix it.

I apologize for all the long messages, I've been troubleshooting this for a week and wrote a lot of notes...

Thanks!

silk rain
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Did you try updating your GPU drivers?

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And if they're up to date, reverting a version or two back?

fervent comet
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Hey there! Yes everything up to date, clean nvidia install... I'll try reverting too thanks!

silk rain
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I'm pretty sure it's something related to GPU.
Although it your GPU was broken, it would've manifested itself in more ways than that.🤔

fervent comet
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Right, that's the strange bit. It's consistent, and highly localized. I'd assume more than one game uses large geometry... I can run Sea Of Thieves on High with no problem for hours