Ubuntu 2642-2: Linux kernel (Trusty HWE) regression
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 LTS: linux-image-3.13.0-55-generic 3.13.0-55.94~precise1 linux-image-3.13.0-55-generic-lpae 3.13.0-55.94~precise1 After a standard system update you need to reboot your computer to make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-2642-2
https://ubuntu.com/security/notices/USN-2642-1
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1465998
Package Information
https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-55.94~precise1