I think the crossed circle means you're hitting a special key on the keyboard that is assigned to some on-screen display (OSD) function. Please try to identify which key or key combo is causing it. You might also be able to avoid the problem by enabling or disabling the keyboard's Fn-lock (which is different for each model of laptop/keyboard).
** Package changed: xorg (Ubuntu) => gnome-shell (Ubuntu) ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/2052740 Title: Crossed circle keeps popping up on my screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2052740/+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