Gfilui

I recently partitioned my hard drive to install ubuntu 17.10 and to use CUDA.
I have run into a non-resolving problem. I have

• 
  

  Followed the exact steps as stated in How can I install CUDA 9 on Ubuntu 17.10.
  The message I keep on receiving is (after rebooting in insecure mode, and then running the CUDA run file):

  
  
  

  ***WARNING: Incomplete installation! This installation did not install the CUDA Driver. 
   A driver of version at least 384.00 is required for CUDA 9.0 functionality to 
  work.
  

  
  
  

  This makes no sense, as I have successfully installed 384.111 previously. My output when I run

  
  
  

  $ nvidia-smi 
  

  
  
  

  is

  
  
  

   NVIDIA-SMI 384.111 Driver Version: 384.111 |
  |-------------------------------+----------------------+----------------------+
  | GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
  | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
  |===============================+======================+======================|
  | 0 GeForce GT 740M Off | 00000000:01:00.0 N/A | N/A |
  | N/A 54C P0 N/A / N/A | 261MiB / 2004MiB | N/A Default |
  +-------------------------------+----------------------+----------------------+
  
  +-----------------------------------------------------------------------------+
  | Processes: GPU Memory |
  | GPU PID Type Process name Usage |
  |=============================================================================|
  | 0 Not Supported |
  +-----------------------------------------------------------------------------+
  

  
  


• 
  

  So naturally my next step was to try another method of updating my driver. Attempting to run the run file for the latest driver(I made it executable and ran it with sudo) yielded the error:

  
  
  

  ERROR: An NVIDIA kernel module 'nvidia-drm' appears to already be loaded in 
   your kernel. This may be because it is in use (for example, by an X 
   server, a CUDA program, or the NVIDIA Persistence Daemon), but this 
   may also happen if your kernel was configured without support for 
   module unloading. Please be sure to exit any programs that may be 
   using the GPU(s) before attempting to upgrade your driver. If no 
   GPU-based programs are running, you know that your kernel supports 
   module unloading, and you still receive this message, then an error 
   may have occured that has corrupted an NVIDIA kernel module's usage 
   count, for which the simplest remedy is to reboot your computer. 
  

  
  
  

  So I rebooted and still received the same error. So its either an X server or the NVIDIA Persistence Daemon.

  
  


• From there I followed the steps from How to install NVIDIA.run? except I stopped the service gdm3 instead of lightdm, this was to disable the X server. After this I attempted to run my driver file again, but got the same error.


• 
  

  My next attempt was to blacklist the

  
  
  

  nvidia_drm
  nvidia_modeset
  nvidia_uvm
  nvidia
  drm_kms_helper
  

  
  
  

  modules but after rebooting and then running the driver executable, the same error as in bullet 2 occurred.

  
  



• I have also tried using the preinstalled software Additional Drivers in software and drivers. This seemed to work fine until the same error as in bullet 1 popped up again, after trying to run the CUDA run file.




• Where do I go from here? Is there anyway to disable the NVIDIA Persistence Daemon?

You can install the Nvidia drivers from the Ubuntu preinstalled program called Additional Drivers. Search into dash or whatever your DE search has and open it. Then spot the list of available drivers for your graphics card and select the driver you want. After that click apply, type your password and maybe you need a reboot or a logout-login before you use the drivers.

Ubuntu 17.10 Installs Wayland with the option for XServer using Gnome (GDM3) or Ubuntu (still GDM3 Now!), all at the login screen. Awesome!

If one uses autologin it often (always in my case Ubuntu STUPIDLY!! reverts to Wayland which at this time (March 2018) still does not have Nvidia support and it SCREWS up your boot with

Nvidia Persistent Daemon start/stop .... FOREVER - Endless Loop

if this happens Purge nvidia from Ubuntu "Rescue"
then,
Disable Wayland in your newly functional Ubuntu

sudo gedit /etc/gdm3/custom.conf

and uncomment "#WaylandEnable=false", to read
"WaylandEnable=false"

and re-install your Nvidia Drivers

All will be fine now