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List:       kde-bugs-dist
Subject:    [kaffeine] [Bug 351774] --no-xlib" to libvlc_new() error when watching tv
From:       Mauro Carvalho Chehab via KDE Bugzilla <bugzilla_noreply () kde ! org>
Date:       2016-06-13 17:03:20
Message-ID: bug-351774-17878-N8MXAmwUrM () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=351774

--- Comment #21 from Mauro Carvalho Chehab <mchehab@osg.samsung.com> ---
(In reply to Potomac from comment #20)
>  @Mauro Carvalho Chehab : do you have an example of command line for libVLC
> if we want to setup the video output ?
> 
> I don't find help about libVLC and parameters

We're still creating a documentation file for Kaffeine. The README.md explains
something:

Remote Access and Kaffeine
==========================

Accessing Kaffeine remotely via X11/ssh/vnc can be a problem, as Qt5 will,
by default, use hardware acceleration and DRI3.

There is a known bug, present on Fedora 23/24, and likely on other distros,
at mesa-libGL/dri-drivers that cause it to wait forever when it is started
from a X11 section. Such bug causes Kaffeine windows to not open:

* <https://bugzilla.redhat.com/show_bug.cgi?id=1174257>

A workaround is to start Kaffeine with:

    LIBGL_DRI3_DISABLE=1 kaffeine

Another solution is to use a vnc server.

Still, libVLC will try to use hardware acceleration on the machine with
Kaffeine, with obviously with won't work via the X11 protocol. For such
scenarios, you may try to change the arguments passed to libVLC via the
"Settings" -->  "Configure Kaffeine" -->  "libVLC", changing the libVLC
arguments to:

    --no-video-title-show -V xcb_glx
or:

    --no-video-title-show -V xcb_xv

and re-start Kaffeine.

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