There are no tooltips available for the Wind Forwards and Volume controllers of the Media Playback toolbar.
Steps to Reproduce:
1. Open IMPRESS
2. Go to INSERT -> MOVIE AND SOUND and insert a sound or video file
3. (Optional if you had never activated the Media Playback in the past) Go to VIEW -> TOOLBARS -> Select the MEDIA PLAYBACK toolbar
4. Click on the media file
5. Move the mouse cursor over the Wind Forwards and Volume controllers of the Media Playback toolbar
Result: There are no tooltips available.
Reproducible with LO 188.8.131.52 and 184.108.40.206.beta1 (Win 8.1).
Confirmed on Linux.
Build ID: e570cd7a293ceee175949dcc9656cdf776ae3c37
TinderBox: Linux-rpm_deb-x86@45-TDF, Branch:master, Time: 2014-12-12_18:49:54
For me the same on Windows 10 Pro with LO 220.127.116.11 32 bit.
So the entire playback control is stored in the .uno:AVMediaToolBox UNO command which means that this will require dev work to fix.
Not as crucial as it used to be as the media playback content panel is now in the sidebar and the toolbar is off by default.
Gabor Kelemen committed a patch related to this issue.
It has been pushed to "master":
tdf#87808 Add missing tooltips to Media Playback toolbar
It will be available in 6.0.0.
The patch should be included in the daily builds available at
http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
Affected users are encouraged to test the fix and report feedback.