[ltp] Idle X220 temperature incre ase to +72C

Marius Gedminas linux-thinkpad@linux-thinkpad.org
Tue, 9 Jul 2013 15:12:09 +0200

Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

(Prompted by the other thread, and a recurrence of the event.)

Sometimes (but not always), when I resume my X220 (4291WJF), its
temperature starts increasing from somewhere around +42=B0C up to around
+74=B0C, where it stays for a while.  Although today it fell down to +68=B0C
and is now holding steady.

All CPUs are idle.  powertop says both cores spend over 90% in C7.
Frequency-wise, oh look: powertop claims all four CPUs are running at
2.7=B10.1 GHz.  Meanwhile /proc/cpuinfo says 800 MHz for all cores, most
of the time, with brief spikes up to 2501 on random ones.

This is Ubuntu 13.04 (GNOME Remix).

$ uname -a
Linux platonas 3.8.0-26-generic #38-Ubuntu SMP Mon Jun 17 21:43:33 UTC 2013=
 x86_64 x86_64 x86_64 GNU/Linux

I've now recorded lspci -vvv (https://gist.github.com/mgedmin/5957200),
will compare with normal one when laptop starts behaving normally again.

Marius Gedminas
Inform all the troops that communications have completely broken down.

Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: Digital signature

Version: GnuPG v1.4.12 (GNU/Linux)