💻 Software
Set fan speed by RPM on Thinkpad T420s in Linux
Fresh7 days ago
Mar 15, 20268461 viewsConfidence Score0%
0%
Problem
The only interface I've found for setting the fan speed with the thinkpad-acpi module, is setting pre-defined levels, 0-7. Example: I would like to set the fan speed by RPM and not by pre-defined levels. Level 2 is 2000 RPM, and level 3 is 3500 RPM. I would like my fan to run at about 2500-3000 RPM…
Error Output
sudo su -c 'echo "level 2" > /proc/acpi/ibm/fan'
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1 Fix
Canonical Fix
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New Fix – Awaiting Verification
Fix for: Set fan speed by RPM on Thinkpad T420s in Linux
Low Risk
Thinkfan http://thinkfan.sourceforge.net/ seems to be commonly used (it's mentioned a lot in the lenovo forums) whilst it's not RPM based it does allow switching between the preset fan speed levels based on customisable temperatures. Additional solu…
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