← Back to team overview

desktop-packages team mailing list archive

[Bug 993187] Re: ubuntu 12.04 completely freezes frequently.

 

Solution checked in Ubuntu 14.04.1

Use vm.swappiness & vm.vfs_cache_pressure to the minimum possible
Run the below command in Terminal
sudo gedit /etc/sysctl.conf

Add the below line at the end of the file. Select File > Save. Select File > Quit. Restart computer
vm.swappiness=1
vm.vfs_cache_pressure=1

Note:
This can be a workaround, if top command shows kswapd0 taking 99% or 100% cpu, while heavy memory activity
Heavy memory activity may be playing Dota2, browsing faulty websites, etc...
Suggested swap partition size in Ubuntu 14.04 64bit with heavy memory activity
Atleast double the size of RAM or 20GB whichever is bigger
Use bigger swap partition than the current, if the above issue still persists
Example swap entry in /etc/fstab to enable swap manually in /dev/sda7
/dev/sda7   none   swap   sw   0   0

https://sites.google.com/site/unityindiversity99/

-- 
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 ubuntu package in Ubuntu:
  Fix Released
Status in xserver-xorg-video-intel package in Ubuntu:
  Fix Released
Status in ubuntu source package in Precise:
  Fix Released
Status in xserver-xorg-video-intel source package in Precise:
  Fix Released

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/ubuntu/+bug/993187/+subscriptions