This issue is occuring for me since a very long time; using Windows the
fans have a much higher speed setting compared to using Linux and the
thinkpad-acpi driver. However, since the use of Maverick I experience a
lot more automatic shutdowns, triggered by thinkpad-acpi, due to
overheating. Before, I was using Karmic and also experienced it
sometimes.

When monitoring the temperatures manually and setting a fan speed
accordingly the CPU is cooled properly, but thinkpad-acpi never triggers
higher CPU fan speeds even when > 95 °C! That is, in my opinion, a bug.

I'm having this issue on my T61p - C2D T9300 w/ Nvidia QuadroFX 570M.
Both need quite a lot of cooling, especially when using the docking
station (less ventilation, more isolation on the bottom).

That's why I don't think this issue is specific for one Thinkpad model,
but occuring as soon as you start using thinkpad-acpi, also in older
versions of Ubuntu. And yes, it's a universe piece of software not part
of the core of Ubuntu, but this should really be fixed as it might cause
hardware failures.

I think running a user space software daemon as a workaround is rather
'dirty'.

More hardware related, but still not justifying the behaviour of thinkpad-acpi:
I noticed there was an awful lot of thermal grease on both the CPU and the GPU 
for the integrated heatsink/fan in my Thinkpad, I cleaned it, replaced this 
with a proper amount of thermal grease and temperatures are 10 °C lower since 
then.

[https://www.bountysource.com/issues/1033632-lenovo-thinkpad-x201s-
overheat-due-to-slow-fans-when-on-auto .]

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/751689

Title:
  [Lenovo Thinkpad x201s] Overheat due to slow fans when on 'auto'

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to