The issue of the Bug description is the most important, because it will affect most of users. This issue has no link to the i-tec adapter issue, it is also visible when the adapter is not connected.
I remember that the situation now (on Ubuntu 18.04) is compareable with the situation on Ubuntu 12.04 (maybe also 14.04). In 16.04 this issue was solved in a perfect way (system menues and login dialog follows the mouse pointer to the desired display).
The issue of the Bug description is the most important, because it will affect most of users. This issue has no link to the i-tec adapter issue, it is also visible when the adapter is not connected.
I remember that the situation now (on Ubuntu 18.04) is compareable with the situation on Ubuntu 12.04 (maybe also 14.04). In 16.04 this issue was solved in a perfect way (system menues and login dialog follows the mouse pointer to the desired display).