, installed ubuntu studio 12.04.1 64bit  aprox 2 weeks ago ,clean install all 
updates and suggested drivers added
about 50 total freezes in the course of the 2 weeks,..  all freezes happend - 
no exception - when using mouse and/or touchpad. most happend in  firefox but 
it also happend in pd when adjusting window size. no possibility to access 
terminal via keybord, left with hard shutdown every time.
system
 i73740QM
P170EM
Intel Ivy bridge graphics controller (rev 9)
AMD nee ATI 6800
4*8Gb Sodimm DDR synchronous 1600
Samsung SSD 830

I have been trying to look at the startup logs the last days with the dmesg 
command , every time i see ff42c50230 error 4 in libX11.so.6.3.0[7f --and the 
varying numbers
-- no idea which logs could be useful for you good people.. if any drop a note

before this version i had ´ńormal'ubuntu 12.04 32 bit on the computer for a few 
weeks. no crashes . I might return to that for the time being. 
thanks

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/993187

Title:
  ubuntu 12.04 completely freezes frequently.

Status in “linux” package in Ubuntu:
  Won't Fix
Status in “xserver-xorg-video-intel” package in Ubuntu:
  Won't Fix
Status in “linux” source package in Precise:
  Won't Fix
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

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