On Mon Sep 7, 2020 at 5:59 AM PDT, Amin Mesbah wrote: > >Synopsis: Thinkpad X220 High Temperature / Fan Spinning Constantly > >Category: system > >Environment: > System : OpenBSD 6.7 > Details : OpenBSD 6.7 (GENERIC.MP) #6: Thu Sep 3 14:08:18 MDT 2020 > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP > > Architecture: OpenBSD.amd64 > Machine : amd64 > >Description: > On a fresh install of 6.7, while under very low load, running X, i3wm, > and vim, the fan spins constantly and audibly. The CPU temperature is > reported as 58C. The fan is reported as spinning at around 3500rpm. > This is with apmd running with the -A flag. > >How-To-Repeat: > Install OpenBSD 6.7 on a Lenovo Thinkpad X220. > Set apmd to run at startup with the -A flag. > Run X. > Listen to the fan. > >Fix: > None
Some potentially useful extra information: Today I took some time to test OpenBSD 6.6 and 6.5 on the same hardware. For each one I installed, syspatched, set up `apmd -A`, and logged into the default fvwm X environment. With 6.6 I observed the same problem with roughly equal temperature, fan RPMs, and fan noise level. With 6.5, however, the fan was inaudible. Temperature hovered around 46C and RPMs around 1900. These numbers are similar to what I see when running Linux on the same hardware under similarly minimal load. Perhaps something changed in 6.6 and remained in 6.7 that is causing the high temperatures and fan speed I am observing. Amin
