Fan Diagnosis Tool | Generated by AI
Done. Saved at ~/projects/ww/ww/linux/check_fan.py and registered as ww linux check-fan.
Next time you hear a loud fan, just run:
ww linux check-fan
It collects in one shot:
- Temperatures — CPU cores, GPU, NVMe, chassis via lm-sensors + sysfs
- Fan controllers — PWM chips, exported channels, duty cycles, or detects “BIOS controls fans”
- GPU fan — nvidia-smi fan speed %, temp, power draw
- Spinning disks — lsblk ROTA flag to flag HDDs
- thermald — whether the thermal daemon has a config file or is running in polling mode
- CPU load/frequency — top consumers + per-core MHz
- Disk I/O — iostat snapshot showing util%, await, iowait
- Summary verdict — tells you if OS has no fan control (BIOS fix needed), or flags HDD noise
Committed and pushed as c9cca06.
Generated by AI. Curating and sharing still takes effort.
If you find it useful, feel free to
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