Laptop Model: Dell Lattitude 5440
OS: Ubuntu 12.04.
While charging my laptop battery i've noticed the following:
- Mouse pointer moves very slowly.
- computer also slows a bit.
This problem was not observed on windows 7.
gksudo gedit /etc/modprobe.d/local.conf
options drm_kms_helper poll=N
As mentioned here, if you don't have
It is also a bug and is reported here: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/962712.