On Fri, Sep 11, 2020, at 17:44, Jeremy O'Brien wrote:
> On Fri, Sep 11, 2020, at 13:31, Marcus MERIGHI wrote:
> > a...@aminmesbah.com (Amin Mesbah), 2020.09.10 (Thu) 04:09 (CEST):
> > > 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
> > > > r...@syspatch-67-amd64.openbsd.org:/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.
> >
> > I seem to remember there was a thread on this. You found the right time
> > frame - but I cannot find the thread from that time.
> > I also seem to remember it was about meltdown/spectre mitigations.
> > (My x220 behaves the same.)
> >
> > Marcus
> >
> >
>
> As a data point, I have -current (as of today) running on my x220 and
> have not observed this issue.
On Mon Sep 14, 2020 at 4:40 AM PDT, Josh wrote:
> Exactly same behaviors with my X1.
> 6.5 = totally fine
> 6.6 and 6.7 = FAN spinning 4-5k rpms + high temperature
> -current = Excellent behavior and much faster overall usage (like
> firefox etc.) due to a kernel LOCK improvement fix. Really amazing
> increase of smoothness and performance. FAN and temperature is back to
> the 6.5 behavior (if not even better...)
>
> Give a try to -current and get back to us? (i have not included @bugs
> to avoid starting a new thread. Feel free to copy/paste my reply to
> share it on @bugs)
>
> Cheers
I just got the chance to upgrade to the latest -current snapshot.
Specifically:
OpenBSD 6.8-beta (GENERIC.MP) #66: Sun Sep 13 03:02:21 MDT 2020
The observed behavior has not changed noticeably (fan is still loud):
$ sysctl hw.sensors.{cpu0.temp0,acpithinkpad0.fan0}
hw.sensors.cpu0.temp0=53.00 degC
hw.sensors.acpithinkpad0.fan0=3484 RPM
This is after rebooting, switching to TTY2, signing in as root, and
doing nothing for a while. In top(1), CPU consistently reads 100% idle,
including system processes.
Let me know if any further data would be helpful.
Amin
