I see this too every so often... but I am usually able to recover the pointer with a suspend then resume.
XPS13 9343
$ uname -a Linux flexi 3.19.0-33-generic #38-Ubuntu SMP Fri Nov 6 18:18:12 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
$ cat /etc/*release* DISTRIB_ID=Ubuntu DISTRIB_RELEASE=15.04 DISTRIB_CODENAME=vivid DISTRIB_DESCRIPTION="Ubuntu 15.04" NAME="Ubuntu" VERSION="15.04 (Vivid Vervet)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 15.04" VERSION_ID="15.04" HOME_URL="http://www.ubuntu.com/" SUPPORT_URL="http://help.ubuntu.com/" BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
I see this too every so often... but I am usually able to recover the pointer with a suspend then resume.
XPS13 9343
$ uname -a
Linux flexi 3.19.0-33-generic #38-Ubuntu SMP Fri Nov 6 18:18:12 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
$ cat /etc/*release* RELEASE= 15.04 CODENAME= vivid DESCRIPTION= "Ubuntu 15.04" www.ubuntu. com/" help.ubuntu. com/" bugs.launchpad. net/ubuntu/"
DISTRIB_ID=Ubuntu
DISTRIB_
DISTRIB_
DISTRIB_
NAME="Ubuntu"
VERSION="15.04 (Vivid Vervet)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 15.04"
VERSION_ID="15.04"
HOME_URL="http://
SUPPORT_URL="http://
BUG_REPORT_URL="http://