Starting a slide show puts an empty window with two scrollbars on the screen. Touching a scrollbar makes the presentation actually start.
Steps to Reproduce:
User Profile Reset: No
[Information automatically included from LibreOffice]
[Information guessed from browser]
OS: Linux (All)
OS is 64bit: yes
Thanks for the report. This issue is handled in bug 119718.
*** This bug has been marked as a duplicate of bug 119718 ***