[ltp] X220 freezes occasionally

Hideki Kato linux-thinkpad@linux-thinkpad.org
Sun, 15 Jul 2012 11:18:16 +0900

Johannes Bittner: <CAHhNckAH22BmNuogkPmzQW_y3hn6iye_fu_LinSGo7eYpv+Nuw@mail.gmail.com>:
>I own my Thinkpad X220 (4290-W1B, manufacturing date is 11/08) for
>about 9 months now. It happened about 5 times that without doing
>anything unusual, my computer froze up or just restarted itself. I'm
>running a recent version Archlinux. Does anyone have similar problems
>with an X220?

My X220S had the same trouble.  I had a few reboot in a year and 
recently reported to Lenovo support.  They knew this well and 

Best regards,
Hideki Kato

>I heard of mainboard problems with some X220 models. Is it possible
>that mine is affected? I'd like to contact Lenovo's support, but I
>can't reproduce the problem. Any experiences with Lenovo's support for
>non-reproducable problems? Is it likely that they tell me that it's
>because I don't run Windows?
>Any experience with the X220 on Linux would be helpful. Does anyone
>have an X220 which runs on Linux, and didn't have any freezes /
>crashes as of yet?
>Kind regards,
Hideki Kato <mailto:hideki_katoh@ybb.ne.jp>