Nvidia-settings - Unable to load info from any available system

Graphics / Linux Linux
1

Hi there. I have just installed Ubuntu 16.04.
I am using 7 gpus 1080ti and using only ssh connection (no display connected)
Installed fresh driver sudo sh NVIDIA-Linux-x86_64-440.83.run`
(full steps i wrote here: nvidia-settings complex problem - Ask Ubuntu)
THE PROBLEM - i can’t run nvidia-settings, have error
Unable to load info from any available system

Also i can’t use
sudo prime-select nvidia
Info: the current GL alternatives in use are: [‘mesa’, None]
Info: the current EGL alternatives in use are: [‘mesa-egl’, None]
Error: the installed packages do not support PRIME
Error: nvidia mode can’t be enabled

±----------------------------------------------------------------------------+
| NVIDIA-SMI 440.82 Driver Version: 440.82 CUDA Version: 10.2 |
|-------------------------------±---------------------±---------------------+
| 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 GTX 108… Off | 00000000:01:00.0 Off | N/A |
| 0% 19C P8 10W / 250W | 42MiB / 11177MiB | 0% Default |
±------------------------------±---------------------±---------------------+
| 1 GeForce GTX 108… Off | 00000000:02:00.0 Off | N/A |
| 0% 17C P8 9W / 250W | 8MiB / 11178MiB | 0% Default |
±------------------------------±---------------------±---------------------+
| 2 GeForce GTX 108… Off | 00000000:04:00.0 Off | N/A |
| 0% 18C P8 10W / 275W | 8MiB / 11178MiB | 0% Default |
±------------------------------±---------------------±---------------------+
| 3 GeForce GTX 108… Off | 00000000:05:00.0 Off | N/A |
| 0% 23C P8 12W / 250W | 8MiB / 11178MiB | 0% Default |
±------------------------------±---------------------±---------------------+
| 4 GeForce GTX 108… Off | 00000000:06:00.0 Off | N/A |
| 0% 17C P8 10W / 280W | 8MiB / 11178MiB | 0% Default |
±------------------------------±---------------------±---------------------+
| 5 GeForce GTX 108… Off | 00000000:08:00.0 Off | N/A |
| 0% 20C P8 9W / 320W | 8MiB / 11178MiB | 0% Default |
±------------------------------±---------------------±---------------------+
| 6 GeForce GTX 108… Off | 00000000:09:00.0 Off | N/A |
| 0% 22C P8 17W / 320W | 8MiB / 11178MiB | 0% Default |
±------------------------------±---------------------±---------------------+

±----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 923 G /usr/lib/xorg/Xorg 25MiB |
| 0 1805 G compiz 13MiB |
| 1 923 G /usr/lib/xorg/Xorg 5MiB |
| 2 923 G /usr/lib/xorg/Xorg 5MiB |
| 3 923 G /usr/lib/xorg/Xorg 5MiB |
| 4 923 G /usr/lib/xorg/Xorg 5MiB |
| 5 923 G /usr/lib/xorg/Xorg 5MiB |
| 6 923 G /usr/lib/xorg/Xorg 5MiB |
±----------------------------------------------------------------------------+

2

nvidia-settings is an application for graphics settings. If there’s no Xserver running on an nvidia gpu (like when run over ssh), there’s no settings to be done. Expected.

3

But is any way to control fan speed of gpu? I need to set always 80% fan speed. Find that i can do this with nvidia-settings

4

Looking at the nvidia-smi output, you have Xservers running on the gpu. You should be able to use nvidia-settings by setting the correct DISPLAY and XAUTHORITY values, like running as root:
DISPLAY=:0 XAUTHORITY=/run/user/111/gdm/Xauthority nvidia-settings
use ps aux |grep X
to get the correct value for XAUTHORITY (what comes after --auth)

5

Thanks for reply friend!

ps aux |grep X
root 923 0.0 0.7 341272 116756 tty7 Ssl+ апр17 0:07 /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
admin 6393 0.0 0.0 21292 960 pts/2 S+ 18:37 0:00 grep --color=auto X

tried:
sudo DISPLAY=:0 XAUTHORITY=/var/run/lightdm/root/ nvidia-settings
and
sudo DISPLAY=:0 XAUTHORITY=/var/run/lightdm/root/:0 nvidia-settings

output is:
No protocol specified
Failed to connect to Mir: Failed to connect to server socket: No such file or directory
Unable to init server: Could not connect: Connection refused

ERROR: The control display is undefined; please run nvidia-settings --help for usage information.

6

Should be correct:
https://forums.developer.nvidia.com/t/nvidia-settings-on-headless-server/53758/4?u=generix
Try getting a root shell first using
sudo -s

2 Likes
7

OMG! I searched all web to find this solution!

DISPLAY=:0 XAUTHORITY=/var/run/lightdm/root/:0 nvidia-settings -a [gpu:0]/GPUFanControlState=1
DISPLAY=:0 XAUTHORITY=/var/run/lightdm/root/:0 nvidia-settings -a [fan:0]/GPUTargetFanSpeed=75

Thank you very much!!