Following idea from comment #40, if bug still exists it's enough just to press Ctrl+F7, to push display refresh. But at 2016-09-01 with updated 4.4.0-36-generic kernel and X.org server version 1.18.3 this bug seems fixed after locking/unlocking.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1568604 Title: Mouse cursor lost when unlocking with Intel graphics To manage notifications about this bug go to: https://bugs.launchpad.net/elementaryos/+bug/1568604/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp