Created attachment 201056 [details]
Sample Impress file with MP4 file

This bug specifically affects KDE/QT desktop versions of the Linux operating system.
(See associated bug 166646 for GTK desktop version display bug)

Description:
Impress presentations that contain MP4 video files without subtitles play the video in the wrong place on the screen:

For single screen set-up - the video plays at half size in the middle of the screen, with distorted images of the underlying desktop showing behind the video.

For a two screen set-up with Presenter Console selected - the video plays at half size in the middle of screen 1 over the top of, and blocking access to, the Presenter Console, instead of appearing full screen on screen 2.

Also note:- Keyboard controls stop working during playback i.e. Esc, Right Arrow, Left Arrow.

Note that this only affects Linux distros with KDE/QT based desktops.

Steps to Reproduce:
1. Create, or download, an MP4 video without subtitles
2. Create an empty simple, two slide, presentation.
3. Add simple text title to first slide.
4. Add video file to second slide.
5. Save Impress file.
6. Play presentation, with or without a second screen, with presenter console option selected.

Actual Results:
When you get to slide 2, the video plays at half screen size in the middle of screen 1.

Expected Results:
Play the video at full screen size.
For two screen set-ups, the video should play at full screen size on screen 2.

Note: I was unable to capture this behaviour using screen capture software so I attempted to film it using my phone camera. The file is uploaded to this bug report.


Reproducible: Always


User Profile Reset: No