i2c issue: argon one fan not working

[moriartynz]

Hi

I installed the argon one fan scripts (https://download.argon40.com/argon1.sh) on a newly-downloaded 32-bit version of raspberry pi os. The in-built fan does not operate, even when temperatures get up to 70 degrees C.

The dmesg queue is filled with messages like this:

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[47727.666325] i2c-bcm2835 fe804000.i2c: i2c transfer timed out
[47758.706878] i2c-bcm2835 fe804000.i2c: i2c transfer timed out
[47789.827417] i2c-bcm2835 fe804000.i2c: i2c transfer timed out
[47820.867972] i2c-bcm2835 fe804000.i2c: i2c transfer timed out
[47851.988531] i2c-bcm2835 fe804000.i2c: i2c transfer timed out

I am also unable to send i2c commands manually:

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$ sudo i2cset -y 1 0x01a 0xfe
Error: Write failed

This case and fan used to work well, but it's been sitting around for a few months and I only recently reflashed the SD card from scratch. I am trying to diagnose what could be causing the problem, namely hardware or software. I suspect software as it was working before but isn't working now. Any insights appreciated.

I'm running:

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$ cat /etc/os-release
PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"
NAME="Raspbian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"

$ cat /proc/version
Linux version 4.19.118-v7l+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1311 SMP Mon Apr 27 14:26:42 BST 2020

Here is my /etc/argonone.conf file (it is vanilla):

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#
# Argon One Fan Speed Configuration
#
# Min Temp=Fan Speed
55=10
60=55
65=100

[rogerty]

Hello, I'm on the exact same situation. Did you find the fix ?

Thanks,

Roger

[whiteshepherd]

I got got a Argon M.2 case and the fan does not turn on. It's just a passive heat sink until this is figured out.

[DarkElvenAngel]

I'm seeing a lot Argon case posts lately.

I have a replacements for the stock Python script you can find my project here https://gitlab.com/DarkElvenAngel/argononed.

Also I have a thread for the project here viewtopic.php?f=29&t=275713