[coreboot] T430 fan control
Davíð Steinn Geirsson
david at dsg.is
Fri Dec 22 11:57:57 CET 2017
I'm trying to get coreboot working on a Lenovo T430. Build and flash were
successful, however it seems the fan control does not work for me.
The fan spins but at a low speed, and does not increase even if I run
a stresstest like 'stress --cpu 4'. Watching 'sensors' output I can see
temperatures increase past the high point, towards the critical point and
after a couple of minutes the machine shuts down due to a thermal event.
In the 'sensors' output the fan status is stuck at 65535RPM, but I'm not sure
if that would have been correct on the manufacturers BIOS since I never
Anyone have any ideas? Or maybe some insight into how the fan control stuff
works on these machines (I thought the EC took care of all that stuff without
I am running from git master checked out Dec 21 (latest commit I see in my tree is ceeafa45cae26ab857687082e02eae40d9621291).
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