# Failed to create cuda context Illegal adress

**URL:** <https://blenderartists.org/t/failed-to-create-cuda-context-illegal-adress/1278322>\
**Category:** Technical Support\
**Created:** [January 14, 2021, 9:13pm UTC](https://blenderartists.org/t/failed-to-create-cuda-context-illegal-adress/1278322 "2021-01-14T21:13:27Z")\
**Posts on this page:** 1\
**Showing post:** 8

<div class="post-metadata">

**Author:** ![tomjk](https://blenderartists.org/user_avatar/blenderartists.org/tomjk/32/733287_2.png) [@tomjk](https://blenderartists.org/u/tomjk)\
**Post date:** [March 1, 2021, 11:53am UTC](https://blenderartists.org/t/failed-to-create-cuda-context-illegal-adress/1278322/8 "2021-03-01T11:53:21Z")

</div>

I’m not sure if this is related, but I’ll put it here in case it helps anyone. I got a new 2060 a few months ago for my Linux Mint system and it worked great in Blender until after a suspend/wake cycle. Using it in any still-open instance of Blender would give a cuda context error, then a new instance would just not detect the gpu at all (preferences/system/cycles-render-device would be empty/cpu-only), until the system was restarted.

This is what I did to resolve this:

(Warning: this was a couple months ago, these steps are based on the notes I left for myself, I am not an expert, I can’t vouch for it still being applicable now/into the future, follow at your own risk, no warranty, make a system backup beforehand, I don’t yet know if/how this interacts with possible future driver or os updates, this may actually be solved/superceded by 460.56 update mentioned above but I don’t know, maybe wait and see first)

1. You should have a file here:  
**file:///usr/share/doc/nvidia-driver-###/html/powermanagement.html**  
(replace ### with your current driver version, eg. 460).  
Follow the instructions under **systemd Configuration**.  
Note: nvidia\_glx-1.0/samples doesn’t exist, the service files are actually in  
usr/share/doc/nvidia-driver-###
2. In **etc/modprobe.d** add a file **nvidia.conf** with the text:  
**options nvidia NVreg\_PreserveVideoMemoryAllocations=1**  
Note: root permission required to create/edit file.
3. Rebuild initramfs with **sudo update-initramfs -u**.
4. Reboot.

> **For convenience, here are all the substeps (assuming driver version 460):**
>
> - Open terminal and run these commands:
> - sudo install /usr/share/doc/nvidia-driver-460/samples/systemd/nvidia-suspend.service /etc/systemd/system
> - sudo install /usr/share/doc/nvidia-driver-460/samples/systemd/nvidia-hibernate.service /etc/systemd/system
> - sudo install /usr/share/doc/nvidia-driver-460/samples/systemd/nvidia-resume.service /etc/systemd/system
> - sudo install /usr/share/doc/nvidia-driver-460/samples/systemd/nvidia /lib/systemd/system-sleep
> - sudo install /usr/share/doc/nvidia-driver-460/samples/systemd/nvidia-sleep.sh /usr/bin
> - sudo systemctl enable nvidia-suspend.service
> - sudo systemctl enable nvidia-hibernate.service
> - sudo systemctl enable nvidia-resume.service
> 
> - In file browser:
> - open etc/modprobe.d as root.
> - create a new file “nvidia.conf”
> - open it in text editor and write:  
> options nvidia NVreg\_PreserveVideoMemoryAllocations=1  
> then save and close.
> 
> - Back in the terminal, run: sudo update-initramfs -u
> - Reboot.

* * *

> **For reference, this was performed on this system setup:**
>
> - OS: Linux Mint 20 Cinnamon (fairly fresh installation)
> - Linux Kernel: 5.8.0-xx series
> - CPU: i7-6700K
> - GPU: EVGA NVIDIA GeForce RTX 2060 SUPER 8GB SC ULTRA GAMING

---

_[View the full topic](https://blenderartists.org/t/failed-to-create-cuda-context-illegal-adress/1278322)._