You need to disable the presenter console:
- Go to Tools > Options;
- Then choose Open Office Impress > General in the left menu;
- Then under the Start Presentation section on the right side;
- uncheck the box with Presenter Screen.
Source: ubuntu – how to disable LibreOffice Impress to use multiple display? – Stack Overflow
ubuntu – how to disable LibreOffice Impress to use multiple display? was last modified: February 24th, 2019 by