Thanks for the heads-up. Raphael (and anyone else experiencing this), please try running thinkfan in Dangerous mode (-D). This makes it more error tolerant, but bear in mind that this also applies to misconfiguration. Otherwise, -D does not change the behaviour, it only affects error handling, so if you change your config, test it without -D before relying on it. If that doesn't work, I might add a workaround for this OS/driver/HW bug.
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