RESOLVED FOR ME: I had the same symptons of bug 1 as described in post #432 on my asrock 330 ION, ubuntu 12.04 playing flash in chrome.
I upgraded the nvidia driver from the ppa channel to version 302.17: ii nvidia-current 302.17-0ubuntu1~precise~xup2 NVIDIA binary Xorg driver, kernel module and VDPAU library ii nvidia-settings 302.17-0ubuntu1~precise~xup3 Tool of configuring the NVIDIA graphics driver xbmc@mediacenter:~$ nvidia-smi -q -u ==============NVSMI LOG============== Timestamp : Sun Aug 19 00:41:11 2012 Driver Version : 302.17 HIC Info : N/A Attached Units : 0 I upgraded to the latest stable kernel 3.2.0-29 (no additional tweaking): xbmc@mediacenter:~$ uname -a Linux mediacenter 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:04:05 UTC 2012 i686 i686 i386 GNU/Linux And I did not have any freeze any more. I installed the nvidia driver from the ppa channel as described here: http://askubuntu.com/questions/104527/how-do-i-install-the-latest- nvidia-drivers-via-the-additional-drivers-tool It seems to be and issue with the nvidia driver in combination with de the kernel. -- 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