On 2015-07-14 09:13 PM, Michael McConville wrote:
On Wed, Jul 15, 2015 at 03:04:07AM +0200, Tobias Ulmer wrote:
Theo is asking for affected models, so lets compile a list.
All my Thinkpads can be provoked into shutdown due to overtemp because
the fan doesn't spin up:
T60
T61
X201
I've had it happen on my X201, but only once in the ~6 months I've had
it. I was building a Coq library with all four cores in a hot lab. It's
survived many other build beatings without issue, and I've never noticed
a problem with the fans. I'm not questioning that it could be improved,
though.
FWIW, the X201t can trivially hit thermal throttling under Windows 7
(using the OEM image, even) if you exercise the GPU (easiest way: play a
Flash game), although not into complete thermal shutdown.
It's a hardware design flaw, not a firmware problem.
I've never had my x201t actually hit the thermal limit under OpenBSD -
at least not that I've noticed. I don't use it for CPU-intensive work,
and I'm not even sure how I would go about exercising the GPU under
OpenBSD without Adobe Flash :-).
Although I agree the fan speed handling under OpenBSD still has room for
improvement... I haven't run OpenBSD on it for any significant amount of
time since the ~recent changes to improve Thinkpad power usage.
--
-Adam Thompson
[email protected]
