Bug#802886: vlc: QT Interface wont full screen or renders only a small portion of the video

[Modestas Vainius]

Control: tags -1 upstream

Hello,

Šeštadienis 24 Spalis 2015 11:34:11 rašė:
> When using the QT interface in VLC, I can no longer doubleclick a video and
> full screen it. When playing a video parts of it are masked off/cropped . 
> So only a small area approximatly 530x290 is visable. I've disabled overlay
> with no effect.  Resizing the video into the small visable area is the only
> way to see the entire video uncropped.
> 
> If I however run the command cvlc <filename> the video the full size and
> have no issue fullscreening the video. It seems that the issue might be
> with QT, but I am unsure how to figure out what the offending package
> maybe.

This was caused by upgrade from Qt 5.4 to 5.5. It is either vlc [1] or Qt 5.5 
[2] issue (latter being more likely). I leave it up to maintainer to decide 
whether to reassign.

However, from a user POV, vlc is basically unusable for video with this bug in 
place.

There are two bugs here though:

1) double-click not working for full-screening. Can be worked around by 
setting QT_XCB_NO_XI2_MOUSE=1 when starting vlc [3]:

$ QT_XCB_NO_XI2_MOUSE=1 vlc

2) video is only partially visible. Not aware of any workarounds yet.

[1] https://trac.videolan.org/vlc/ticket/15663
[2] https://bugreports.qt.io/browse/QTBUG-48321
[3] https://trac.videolan.org/vlc/ticket/15663#comment:3

-- 
Modestas Vainius <modestas at vainius.eu>