@Kayvan: great write-up. Thanks. But the problem is broader than intel with on-board CPU. It happens on Intel-nVidia CPU as well, which is my set-up: a Core2Duo with an nVidia 8400M. I does not at all happen on Oneiric 11.10, which I went back to. It starts from 12.04 and continues into 12.10.
It does not necessarily happen with "intensive" use. I had it while just browsing the web - although the web can be "intensive" use as well on some sites, which load up lots of flash ads and things. Both on Firefox and on Chrome / Chromium. I did notice that when scrolling up and down a page, the screens blinks (i.e. goes to black and back up) for some milliseconds. Sometimes the PC passes / recovers from such a blink, sometimes it results in this lock- up. To make sure: it _is_ a complete system lock-up I have: no mouse, no keyboard, no TTY, no log-entries. Hard-reset is the only option. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/993187 Title: ubuntu 12.04 completely freezes frequently. Status in “linux” package in Ubuntu: Won't Fix Status in “plymouth-theme-int2mil-ubuntu-11.04” package in Ubuntu: Confirmed Status in “xserver-xorg-video-intel” package in Ubuntu: Won't Fix Status in “linux” source package in Precise: Won't Fix Status in “plymouth-theme-int2mil-ubuntu-11.04” source package in Precise: Fix Released Status in “xserver-xorg-video-intel” source package in Precise: Won't Fix Bug description: Update: 6/12/2012 This bug is about a complete system lock-up. No other TTYs can be started. Mouse doesn't move. Keyboard doesn't react. The only solution is hard reset. Seems to happen on a variety of configurations, including nVidia, ATI and Intel graphics. If you are still able to TTY or SSH into other sessions, move the mouse or use the keyboard, file another bug. Thx. Joris V. (brains). Update: 5/21/2012 Updating the kernel to 3.3.6 as suggested by Michael in #91, the system seems stable, no freezes yet in 5-6 hrs of using and watching videos for couple of hrs. Original description: I recently installed newly released ubuntu 12.04 LTS 64 bit version on my desktop. And it is frequently freezing, for the first few hours it ran smoothly and when I started watching videos it started freezing randomly. I have to use hard restart every time. Initially it was only during videos but now even during normal browsing it is freezing. I am using on board graphics and do not have any graphics card installed. Can someone please help me here, I really love the new looks of 12.04 and it bugs me not being able to use :( Below is my hardware configuration: Processor: Intel CORE i3 processor (2nd generation) Board: Intel® Desktop Board DH67BL Ram: 4GB Graphics: On board HDD: 500 GB Please let me know if you need more information, or any specific logs I can capture (and how). Thanks, Ketan Patil To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/993187/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
