I checked in my syslog after many complete freeze (CTRL+ALT+Fx not reacting), and i found this line for the 3rd time:
Aug 16 13:17:01 pierriko-dell CRON[10776]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) at the time of the freeze, but I've nothing in my crontab: $ crontab -l no crontab for pierriko $ ll /etc/cron.hourly total 20 drwxr-xr-x 2 root root 4096 Jul 11 15:08 ./ drwxr-xr-x 147 root root 12288 Aug 16 13:29 ../ -rw-r--r-- 1 root root 102 Apr 2 15:28 .placeholder $ cat /etc/cron.hourly/.placeholder # DO NOT EDIT OR REMOVE # This file is a simple placeholder to keep dpkg from removing this directory Any idea? Here is 3 line of my syslog where the 2nd one is blocking: Aug 16 12:38:33 pierriko-dell dhclient: bound to 192.168.1.36 -- renewal in 2821 seconds. # <--- normal DHCP renewal Aug 16 13:17:01 pierriko-dell CRON[10776]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) # <--- time of freeze Aug 16 13:25:34 pierriko-dell dhclient: DHCPREQUEST of 192.168.1.36 on wlan0 to 192.168.1.1 port 67 # <--- time of reboot -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/993187 Title: ubuntu 12.04 completely freezes frequently. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/993187/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
