question on case/sytem fans

[wilky]

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[code]
System:
  Kernel: 5.15.0-56-generic x86_64 bits: 64 compiler: gcc v: 11.3.0 Desktop: Cinnamon 5.4.12
    tk: GTK 3.24.33 wm: Mutter dm: LightDM Distro: Linux Mint 21 Vanessa base: Ubuntu 22.04 jammy
Machine:
  Type: Desktop System: Gigabyte product: B560M D2V v: N/A serial: <superuser required>
  Mobo: Gigabyte model: B560M D2V serial: <superuser required> BIOS: American Megatrends LLC.
    v: F10 date: 03/25/2022
Battery:
  Device-1: hidpp_battery_0 model: Logitech Wireless Mouse serial: <filter>
    charge: 55% (should be ignored) status: Discharging
CPU:
  Info: quad core model: Intel Core i3-10100F bits: 64 type: MT MCP arch: Comet Lake rev: 3 cache:
    L1: 256 KiB L2: 1024 KiB L3: 6 MiB
  Speed (MHz): avg: 4147 high: 4196 min/max: 800/4300 cores: 1: 4161 2: 4136 3: 4109 4: 4102
    5: 4196 6: 4116 7: 4192 8: 4169 bogomips: 57600
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Graphics:
  Device-1: NVIDIA G92 [GeForce GTS 250] vendor: CardExpert driver: nouveau v: kernel pcie:
    speed: 2.5 GT/s lanes: 16 ports: active: HDMI-A-1 empty: DVI-I-1,VGA-1 bus-ID: 01:00.0
    chip-ID: 10de:0615
  Device-2: Logitech Webcam C270 type: USB driver: snd-usb-audio,uvcvideo bus-ID: 1-1:2
    chip-ID: 046d:0825
  Display: x11 server: X.Org v: 1.21.1.3 driver: X: loaded: modesetting unloaded: fbdev,vesa
    gpu: nouveau display-ID: :0 screens: 1
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96
  Monitor-1: HDMI-1 mapped: HDMI-A-1 model: Acer HR274H res: 1920x1080 dpi: 82 diag: 686mm (27")
  OpenGL: renderer: NV92 v: 3.3 Mesa 22.0.5 direct render: Yes
Audio:
  Device-1: Intel vendor: Gigabyte driver: snd_hda_intel v: kernel bus-ID: 00:1f.3
    chip-ID: 8086:f0c8
  Device-2: Logitech Webcam C270 type: USB driver: snd-usb-audio,uvcvideo bus-ID: 1-1:2
    chip-ID: 046d:0825
  Sound Server-1: ALSA v: k5.15.0-56-generic running: yes
  Sound Server-2: PulseAudio v: 15.99.1 running: yes
  Sound Server-3: PipeWire v: 0.3.48 running: yes
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Gigabyte driver: r8169
    v: kernel pcie: speed: 2.5 GT/s lanes: 1 port: 3000 bus-ID: 03:00.0 chip-ID: 10ec:8168
  IF: enp3s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Drives:
  Local Storage: total: 335.36 GiB used: 25.51 GiB (7.6%)
  ID-1: /dev/sda vendor: Kingston model: SA400S37240G size: 223.57 GiB speed: 6.0 Gb/s
    serial: <filter>
  ID-2: /dev/sdb vendor: SanDisk model: SDSSDA120G size: 111.79 GiB speed: 6.0 Gb/s
    serial: <filter>
Partition:
  ID-1: / size: 108.98 GiB used: 25.48 GiB (23.4%) fs: ext4 dev: /dev/sdb3
  ID-2: /boot/efi size: 96 MiB used: 34.1 MiB (35.6%) fs: vfat dev: /dev/sda2
Swap:
  ID-1: swap-1 type: file size: 2 GiB used: 0 KiB (0.0%) priority: -2 file: /swapfile
USB:
  Hub-1: 1-0:1 info: Hi-speed hub with single TT ports: 16 rev: 2.0 speed: 480 Mb/s
    chip-ID: 1d6b:0002
  Device-1: 1-1:2 info: Logitech Webcam C270 type: Video,Audio driver: snd-usb-audio,uvcvideo
    rev: 2.0 speed: 480 Mb/s chip-ID: 046d:0825
  Device-2: 1-2:3 info: China Resource Semico USB Keyboard type: Keyboard,HID
    driver: hid-generic,usbhid rev: 1.1 speed: 1.5 Mb/s chip-ID: 1a2c:0b2a
  Hub-2: 1-11:4 info: Genesys Logic Hub ports: 4 rev: 2.0 speed: 480 Mb/s chip-ID: 05e3:0608
  Device-1: 1-11.3:6 info: Alcor Micro AU6477 Card Reader Controller type: Mass Storage,HID
    driver: hid-generic,usb-storage,usbhid rev: 2.0 speed: 480 Mb/s chip-ID: 058f:6364
  Device-2: 1-11.4:7 info: Logitech Unifying Receiver type: Keyboard,Mouse
    driver: logitech-djreceiver,usbhid rev: 2.0 speed: 12 Mb/s chip-ID: 046d:c534
  Device-3: 1-14:5 info: Integrated Express ITE Device type: HID driver: hid-generic,usbhid
    rev: 2.0 speed: 12 Mb/s chip-ID: 048d:5702
  Hub-3: 2-0:1 info: Super-speed hub ports: 6 rev: 3.1 speed: 20 Gb/s chip-ID: 1d6b:0003
Sensors:
  System Temperatures: cpu: 39.0 C mobo: 16.8 C gpu: nouveau temp: 45.0 C
  Fan Speeds (RPM): N/A
Repos:
  Packages: apt: 2309
  No active apt repos in: /etc/apt/sources.list
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
    1: deb http: //packages.linuxmint.com vanessa main upstream import backport
    2: deb http: //archive.ubuntu.com/ubuntu jammy main restricted universe multiverse
    3: deb http: //archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
    4: deb http: //archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
    5: deb http: //security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
Info:
  Processes: 261 Uptime: 3h 5m Memory: 7.63 GiB used: 2.2 GiB (28.9%) Init: systemd v: 249
  runlevel: 5 Compilers: gcc: 11.3.0 alt: 11 Client: Unknown python3.10 client inxi: 3.3.13

[/code]

my dilemma is my MB has "smart fan" which I can set speed to temperature for both CPU and case fans in BIOS.I have reset the profile for the case fans so they spin a lot slower, now when I boot, the fans may run at the slower speed or just run flat out. If I boot and they run flat out I restart, go into bios, use "F10" and Save and it will start back up all nice and quiet. On next boot they run flat out again, nothing is changing in bios so is my os reading something else. I hope this makes sense. Cheers Wilky

[Crito]

inxi says fan speed N/A so my guess would be your sensors aren't configured properly:

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sudo sensors-detect

If you get a "/dev/port operation not permitted" disable secure boot in BIOS and try again, then confirm sensors are working with just a plain:

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sensors

[wilky]

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wilky@wilky-B560M-D2V:~$ sensors
coretemp-isa-0000
Adapter: ISA adapter
Package id 0:  +29.0°C  (high = +80.0°C, crit = +100.0°C)
Core 0:        +28.0°C  (high = +80.0°C, crit = +100.0°C)
Core 1:        +28.0°C  (high = +80.0°C, crit = +100.0°C)
Core 2:        +29.0°C  (high = +80.0°C, crit = +100.0°C)
Core 3:        +27.0°C  (high = +80.0°C, crit = +100.0°C)

acpitz-acpi-0
Adapter: ACPI interface
temp1:        +16.8°C  (crit = +20.8°C)
temp2:        +16.8°C  (crit = +20.8°C)
temp3:        +27.8°C  (crit = +105.0°C)

nouveau-pci-0100
Adapter: PCI adapter
GPU core:      1.20 V  (min =  +0.95 V, max =  +1.20 V)
temp1:        +44.0°C  (high = +95.0°C, hyst =  +3.0°C)
                       (crit = +105.0°C, hyst =  +2.0°C)
                       (emerg = +110.0°C, hyst =  +5.0°C)

wilky@wilky-B560M-D2V:~$ 

Ta Crito
what I don't understand is in bios using "smart Fan" I set my temp/fan rpm and save and exit and fans do as they are told, but on the next boot they run flat out again, If I do a reboot, go into bios but change nothing, just save and exit, it starts up with the fans a low speed.
These are system/case fans (not CPU or GPU fans) that power from the mb.

[Crito]

I'm not familiar with your mobo but I know some of mine with "smart" fan control use temperature hysteresis and that sometimes requires a little tweaking to get working as desired. Since it's not a CPU or GPU fan it's only using the mobo's temp sensor. My first thought was that sensor might be faulty. Maybe monitor the temp changing with inxi -s to see if anything weird is going on.