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It is happening at the very beginning of the Cycles render: CUDA error at cuCtxCreate: Unknkown error. I don't know how to even respond to that. It started when I added a basic glass material and a mirror material. I don't recall doing anything more than that on that file, and the iteration before it works. I tried getting rid of those materials but it still won't render. What should I do now?

I'm going to try rebuilding it from the previous iteration, but I thought maybe there was something I should know here.

  • Ubuntu Budgie 17.04
  • i7-4790K
  • GeForce GTX 960
  • Nvidia 375.66 binary driver
  • Blender 2.78
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  • $\begingroup$ Just FYI for troubleshooting sake, I changed nothing and it rendered fine on my machine (Blender 2.78c, GTX 1050 Ti, 970, and 1060). I would definitely change the tile size to something like 240 x 270 for most efficient use of your GPU but that's not related to the error. $\endgroup$
    – bertmoog
    Jul 25, 2017 at 2:39
  • $\begingroup$ Works fine for me as well, driver 382.05 on GTX 960. Im running windows 10 though $\endgroup$
    – tacofisher
    Jul 25, 2017 at 2:41
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    $\begingroup$ No problem rendering on dual 780Ti on windows either. Check if there are any other versions of the Nvidia drivers that you can use. I had an issue at some point in linux and the solution was downgrading to a previous version. $\endgroup$
    – user1853
    Jul 25, 2017 at 2:44
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    $\begingroup$ See the last edit to this question: blender.stackexchange.com/questions/64613/… - Do you have any overclocking on your card? Also: blenderartists.org/forum/… $\endgroup$
    – bertmoog
    Jul 25, 2017 at 2:45
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    $\begingroup$ This is not a great time for me to be fiddling, i'm against the clock right now. So, based on the guidance above, for now i switched to the CPU as the rendering device. For these still images, that's fine. $\endgroup$
    – kim holder
    Jul 25, 2017 at 2:57

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