Good day! I found the least invasive way to restore the actual default left_ptr cursor from the Terminal. Issue the command: xsetroot -xcf /usr/share/icons/Adwaita/cursors/left_ptr 24
Three other methods work (in my Debian Wheezy): Alt+F2 r [Enter] Launch Applications => System Tools => System Settings and it automatically resets. Refresh the shell with the Terminal command: nohup gnome-shell --replace >/dev/null 2>&1 & (survives closing the Terminal window) Until there's a stable fix, I'm hoping this helps. -- Charles
