Overclocking Nvidia on Ubuntu

KlintistwoodKlintistwood Member Posts: 142
Hi all,

I'm trying to overclock all cards on my rig running under ubuntu but I have managed to overclock only one so far. I have a 10 GPU rig with GTX 1060 cards.

Here is what I have done so far:
1. Fresh Ubuntu install 16.04
2. Install Nvidia drivers like this:
sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
ubuntu-drivers devices
sudo apt-get install nvidia-381

3. Install CUDA drivers by downloading .deb file from Nvidia (https://developer.nvidia.com/cuda-downloads)

sudo dpkg -i cuda-repo-ubuntu1604_8.0.61-1_amd64.deb
sudo apt-get update
sudo apt-get install cuda

enable overclock with coolbits

sudo nvidia-xconfig -a --cool-bits=28 --allow-empty-initial-configuration

So far, everything is ok, I see that the xorg.conf has been updated properly but when I reboot, my xorg.conf goes back to a previous version without the overclocking.

I have seen some people experiencing the same issue, some solutions here: https://askubuntu.com/questions/731990/gpu-manager-overwrites-xorg-conf overwrites xorg.conf I tried this but ended up with a login loop and being obliged to purge all Nvidia drivers.

When I tried with only one GPU I could overclock the card without any issue but since I added other cards, it doesn't work anymore. The problem seems to come from xorg.conf where my configuration is systematically overwritten.

Any idea of how I could solve this?

Thanks!

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