Purple Screen of Death after changing Nvidia X Server prime profile to Performance mode

For an Edge AI system I'm using an AMD Ryzen 5 5600G based compute platform with a NVIDIA Tesla T4 for the AI workloads.

After setting the NVIDIA X Server Prime profile from "NVIDIA on demand" to "NVIDIA Performance Mode" (not knowing was it does tbh, I was blinded by a the word performance) and rebooting, I was greeted with a purple screen of death on my Ubuntu 20.04. Removing the GPU solved the issue but here I was not able to undo the change in settings or resolve the issue otherwise. When plugging the GPU back in, the purple screen returns on startup.

Does someone has any tips on how to solve this? E.g. resetting all NVIDIA X Server settings somehow? I was not able to find any guide on how to do that.

Thx a lot!

BR Kevin

2 Answers

Remove all NVIDIA packages.

1. Remove all the nvidia packages.

   sudo apt update
   sudo apt upgrade
   sudo apt autoremove
   sudo apt-get remove --purge nvidia*
   sudo apt-get remove --purge "nvidia*"

2. If you have added an Nvidia PPA to /etc/apt/sources.list remove that PPA by prefacing its line in sources.list with a # to comment it out. Run sudo apt update to refresh the list of available software.

3. Reboot with sudo reboot

Optionally you can reinstall the recommended NVIDIA proprietary graphics drivers after they have been removed. The autoinstall command of ubuntu-drivers installs drivers that are appropriate for automatic installation including their dependencies.

sudo ubuntu-drivers autoinstall && sudo reboot

i did some research and i did found some pleasing results. since you mentioned you have performance mode on, probably it's overheat issues as mentioned here: