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what could be the reason for laptop restart while running 12.10. I wasn't doing anything at that specific moment of time. I don't know if this main log file snippet says something about it.

Nov 29 21:21:34 alex-ThinkPad-T430 wpa_supplicant[1317]: wlan0: CTRL-EVENT-CONNECTED - Connection to 2c:3f:38:c1:77:de completed (reauth) [id=0 id_str=]
Nov 29 21:21:34 alex-ThinkPad-T430 NetworkManager[1004]: <info> (wlan0): supplicant interface state: associating -> completed
Nov 29 21:21:54 alex-ThinkPad-T430 dhclient: DHCPREQUEST of 131.130.239.43 on wlan0 to 1.1.1.1 port 67
Nov 29 21:21:54 alex-ThinkPad-T430 dhclient: DHCPACK of 131.130.239.43 from 1.1.1.1
Nov 29 21:21:54 alex-ThinkPad-T430 dhclient: bound to 131.130.239.43 -- renewal in 126 seconds.
Nov 29 21:21:54 alex-ThinkPad-T430 NetworkManager[1004]: <info> (wlan0): DHCPv4 state changed reboot -> renew
Nov 29 21:21:54 alex-ThinkPad-T430 NetworkManager[1004]: <info>   address 131.130.239.43
Nov 29 21:21:54 alex-ThinkPad-T430 NetworkManager[1004]: <info>   prefix 22 (255.255.252.0)
Nov 29 21:21:54 alex-ThinkPad-T430 NetworkManager[1004]: <info>   gateway 131.130.236.1
Nov 29 21:21:54 alex-ThinkPad-T430 NetworkManager[1004]: <info>   nameserver '131.130.1.11'
Nov 29 21:21:54 alex-ThinkPad-T430 NetworkManager[1004]: <info>   nameserver '131.130.1.12'
Nov 29 21:21:54 alex-ThinkPad-T430 NetworkManager[1004]: <info>   domain name 'univie.ac.at'
Nov 29 21:21:54 alex-ThinkPad-T430 dbus[982]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)

Nov 29 21:21:54 alex-ThinkPad-T430 dbus[982]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' 

Nov 29 21:23:56 alex-ThinkPad-T430 dbus[982]: [system] Activating service name='org.debian.apt' (using servicehelper)
Nov 29 21:23:57 alex-ThinkPad-T430 AptDaemon: INFO: Initializing daemon
Nov 29 21:23:57 alex-ThinkPad-T430 dbus[982]: [system] Successfully activated service 'org.debian.apt'
Nov 29 21:23:57 alex-ThinkPad-T430 AptDaemon.PackageKit: INFO: Initializing PackageKit compat layer

I've marked the time where the laptop has gone down. I'm using the one month old lenovo T430 core i5, intel hd400 (discreet graphics disabled in bios).

Would be grateful for any help. Thanks

share|improve this question
This question should instead be filed as a bug report, and as such is off-topic, thanks! Instructions on filing a bug report are here. – Jorge Castro Mar 1 at 1:26

closed as off topic by Jorge Castro, Eric Carvalho, bodhi.zazen, Mik, qbi Mar 1 at 21:59

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