Bug#798661: vlc: VLC only shows top-left part of the movie

[Sebastian Ramacher]

Control: reassign -1 libqt5widgets5 5.5.0+dfsg-6
Control: affects -1 vlc
Control: forwarded -1 https://bugreports.qt.io/browse/QTBUG-48321
Control: retitle -1 libqt5widgets5: regression in 5.5 breaks vlc video playback

On 2015-09-15 15:03:53, Sebastian Ramacher wrote:
> Control: severity -1 normal
> 
> On 2015-09-11 16:55:51, Ralf Jung wrote:
> > Package: vlc
> > Version: 2.2.1-3
> > Severity: important
> > 
> > Dear Maintainer,
> > 
> > since I installed the big gcc5-transition and all the package updates coming along with it,
> > VLC is no longer working properly: When I open a movie, only the top-left part of the window
> > actually shows movie content. The rest of the windows is black, with the rest of the movie
> > not being visible. I tried both the XVideo and the GLX output module, I tried disabling
> > compositing in KWin, and I tried videos of different formats. The behavior is always
> > the same. I will attach a screenshot.
> > The same files used to work fine in VLC, and still work fine in mpv.
> 
> ...
> 
> > ii  libqt5core5a                5.5.0+dfsg-6
> > ii  libqt5gui5                  5.5.0+dfsg-6
> > ii  libqt5widgets5              5.5.0+dfsg-6
> > ii  libqt5x11extras5            5.5.0-1
> 
> This sounds a lot like
> https://forums.opensuse.org/showthread.php/509523-VLC-video-playback-in-Plasma-5-4-openSUSE-13-2.
> Does downgrading to the Qt version help or any of the workarounds help?

According to QTBUG-48321 this is a regression in Qt 5.5 introduced by commit
37f326297d45564298a2c8cb1958a81b858de57c. Reassinging to Qt.

Cheers
-- 
Sebastian Ramacher