GPU Fan loud with no load


warning: this is dangerous. manually turning off cpu fans or slowing them down too much can fry or set fire (AMDs) to your CPU.

“1/ Strongly recommend first that you set up lm-sensors so you can keep an eye on CPU temperature. run ‘sensors-detect’ to configure. then ‘sensors’ to get an idea whether you are frying your cpu or not. check out the specs online for your cpu to see how hot it can safely get before melting.”

My GPU fan speed seemed to high/loud even with no load. From the archwiki nouveau page went to fan control:

$ find /sys -name pwm1_enable

% readlink /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/driver

Then i created the file:

$ cat /etc/udev/rules.d/50-nouveau-hwmon.rules
ACTION==“add”, SUBSYSTEM==“hwmon”, DRIVERS==“nouveau”, ATTR{pwm1_enable}=“2”

But my fan still seemed too loud for the load, I went to the folder:


pmw1_enable was indeed 2
pmw1 was 65

this page shows how too change fan speed in MANUAL mode:
even after changing the fan speed to 5, it still stayed at pmw1 65
I noticed in:


another file called pwn1_min which was set at 65
then changed that to 0 in MANUEL
wah lah! i could lower the fan speed down to a quieter speed in MANUAL mode:

echo 0 > /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/hwmon/hwmon3/pwm1_min

Then edited % > cat /etc/udev/rules.d/50-nouveau-hwmon.rules

ACTION==“add”, SUBSYSTEM==“hwmon”, DRIVERS==“nouveau”, ATTR{pwm1_enable}=“2”
ACTION==“add”, SUBSYSTEM==“hwmon”, DRIVERS==“nouveau”, ATTR{pwm1_min}=“0”

and much quieter. So I played a little xonotic a FPS with the nouveau driver, seems pretty good. I think the “feel” is a little different, but better maybe? Fan speed adjusted appropriately . I will continue to monitor GPU temps for any issues

btw made a script for polybar:


sensors nouveau-pci-0100 | grep temp1 | cut -d\ -f9

from polybar modules:

type = custom/script

interval = 5
exec = ~/.config/polybar/scripts/nouveautemp
label =“GPU  %output%”
tail = true

click-left =termite -e “watch sensors” & disown

good day


Okay, glad to hear that you have solved the problem with your gpu card fan. But, @FluffyUnicorn, how are you doing with your font issue?

@FluffyUnicorn, please open a NEW thread for any issues. It makes it a whole lot easier for those who have the same issue to find the solution.


EDIT: Actually going to split this one off.