Jetson Xavier AGX Fan issue: fan does not spin even when module is heated up!

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier
1

The entire setup was successfully completed via the Jetpack SDK manager. However, when I boot into the Xavier, after some time the entire package becomes immensely hot, yet the fan does not start. Is there a setting or specific driver for the fan?

2

Instead of " I feel it hot", you can try to dump the tegrastats to know the actual temperature on the device.

3

Well, using the GUI monitor, I was able to see that the CPU temperatures (for all 8) was around 44 C and for the GPU, it was around 42 C. Important to note, I haven’t even started running my code yet.

The throttle and shutdown thresholds are set to be above 90 C for both. I intend to execute training code on the module, and unless the temperature is maintained in the range of 60-70, I am concerned that the module might get damaged.

I have currently used the command:
systemctl start nvfancontrol

To test whether this service is currently active, use the command:
systemctl is-active nvfancontrol

To stop this service, use the command:
systemctl stop nvfancontrol

Kindly advise.

4

Are you using cool or quiet profile? The temp for fan to start is different range.

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5

I am unaware as to how to select the profiles - what is the command or in which file do I need to make the changes?

6

You already answer your own question in previous comment. nvfancontrol can set it.

/etc/nvfancontrol.conf

7

But how exactly are the profiles selected?

8

Not quite sure about your question. Could you elaborate it?

9

Well, there are two profiles, viz., “cool” and “quiet”, right? How do I know which is the current active profile and how do I change it?

Following are the values from the /etc/nvfancontrol.conf (readonly for my user account)

#
# Copyright (c) 2021, NVIDIA CORPORATION.  All rights reserved.
#
# NVIDIA CORPORATION and its licensors retain all intellectual property
# and proprietary rights in and to this software, related documentation
# and any modifications thereto.  Any use, reproduction, disclosure or
# distribution of this software and related documentation without an express
# license agreement from NVIDIA CORPORATION is strictly prohibited.
#

POLLING_INTERVAL 2

<FAN 1>
        TMARGIN DISABLED
        FAN_GOVERNOR pid {
                STEP_SIZE 10
        }
        FAN_PROFILE quiet {
                #TEMP   HYST    PWM     RPM
                0       0       0       0
                50      18      77      1000
                63      8       120     2000
                72      8       160     3000
                81      8       255     4000
                140     0       255     5000
                150     0       255     6000
                160     0       255     7000
                170     0       255     10000
                180     0       255     11000
        }
        FAN_PROFILE cool {
                #TEMP   HYST    PWM     RPM
                0       0       0       0
                35      9       77      1000
                53      8       120     2000
                62      8       160     3000
                73      9       255     4000
                140     0       255     5000
                150     0       255     6000
                160     0       255     7000
                170     0       255     10000
                180     0       255     11000
        }
        THERMAL_GROUP 0 {
                GROUP_MAX_TEMP 108
                #Thermal-Zone Coeffs Max-Temp
                CPU-therm 30,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 0
                GPU-therm 30,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 0
                AUX-therm 40,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 0
        }
        FAN_DEFAULT_CONTROL open_loop
        FAN_DEFAULT_PROFILE quiet
        FAN_DEFAULT_GOVERNOR pid
10

Can you dump the full file of your /etc/nvfancontrol.conf?

11

Edited the dump in the previous reply!

12

Check the last two line of what you dumped.

13

So how do I change it to cool? I believe there must be a better way than using root privileges to edit the file to change the default profile to cool?

14

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