[ltp] unpredictable shutdowns
Mon, 30 Sep 2013 10:38:46 +0200
I have an annoying issue with my T420i, that randomly shutdown while
working, on my ubuntu 13.04.
no matter i am on AC only, or on battery, or both.
I've tracked temperature evolution while working, and it does not seem
I have performed memtest, HDD verification and video memory test,
without finding any issue using ultimatebootcd. Interestingly, i did not
encounter any issue while performing these long tests, so i started to
hope again !
So i decided to format everything, restart from zero and install debian
wheezy. it was stable with minimal distrib (only cli) and openbox, but i
encountered a shutdown few minutes after starting gnome3...
Also, i noticed that some key combinations are awkward, such as Fn+o
that make it sleep, or CTRL+ALT+left, that shut it down ... even under
minimal-cli debian. Also on Ubuntu, the wireless connexion tended to
disrupt from times to times, and all these strange behaviors started
more or less together ... If it ever rings a bell for you :)
Do you have ideas about what i could test to identify my problem ? Could
it be a mere keyboard issue, that randomly sends 'shutdown' signals ?
Could it be a problem with another hardware element, what could it be,
and how could i diagnose ? Would it be worth to explore some advanced
BIOS settings, or to update it ?
As you can see, i am a bit lost with this, but having formatted
everything, i am ready to explore all the options !
Thank you !