$ lsb_release -rd
Description:Ubuntu 14.04 LTS
Release:14.04
~$ cat /proc/version_signature
Ubuntu 3.13.0-24.47-generic 3.13.9
** Attachment added: lspci-vnvn.log file
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1330196/+attachment/4131809/+files/lspci-vnvn.log
** Also
Sorry, I did not remember to include the /var/log/Xorg.0.log file when I was
preparing the above log files.
I am attaching the /var/log/Xorg.0.log.old file. This file is the log when I
was reproducing the bug.
** Attachment added: Xorg.0.log.old
suokunlong, thank you for taking the time to report this bug and helping to
make Ubuntu better. Please execute the following command, as it will
automatically gather debugging information, in a terminal:
apport-collect 1330196
When reporting bugs in the future please use apport by using
