Dolphin video preview not working (KDE)

mattf · 2020-04-12 05:45:40

Dolphin video preview on the right pane isn't working to me. What I exactly mean is that it is totally glitched and sometimes just the audio plays, another times it works and is kinda random:
https://ibb.co/kgCc3Fy

On that image the preview of the video is a static image but the audio plays.
Ive installed all here https://wiki.archlinux.org/index.php/Do … e_previews, cleaned kde cache, installed older dolphin versions.

yay -Qi dolphin-plugins                                                                                                                              
Name            : dolphin-plugins                                                                                                                      
Version         : 19.12.3-1                                                                                                                            
Description     : Extra Dolphin plugins                                                                                                                
Architecture    : x86_64                                                                                                                               
URL             : https://www.kde.org/applications/system/dolphin/                                                                                     
Licenses        : LGPL                                                                                                                                 
Groups          : kde-applications  kdesdk                                                                                                             
Provides        : None                                                                                                                                 
Depends On      : dolphin
Optional Deps   : ktexteditor: Mercurial plugin [installed]
Required By     : kdesdk-meta
Optional For    : None
Conflicts With  : None
Replaces        : None
Installed Size  : 1811.11 KiB

Operating System: Arch Linux 
KDE Plasma Version: 5.18.4
KDE Frameworks Version: 5.68.0
Qt Version: 5.14.2
Kernel Version: 5.4.30-1-lts
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-7700HQ CPU @ 2.80GHz
Memory: 15.5 GiB of RAM
Nvidia GTX 1050 ti (Mobile)  nvidia 440 driver

Last edited by mattf (2020-04-12 05:46:47)

V1del · 2020-04-12 12:31:17

Which phonon-backend do you have installed and if it's gstreamer do you have all of the important gst plugins (for most video formats gst-plugins-ugly and -bad will be necessary, alternatively gst-libav to be absolutely sure)

mattf · 2020-04-12 15:00:43

I was already pasting when i realized I didn't have gst-libav (how did you figured that out???). Installing it did the trick:

(pacman -S gst-libav this made it work!)

This is all I had before:

$ pacman -Qi phonon-qt5-gstreamer              
Name            : phonon-qt5-gstreamer
Version         : 4.10.0-1
Description     : Phonon GStreamer backend for Qt5
Architecture    : x86_64
URL             : http://phonon.kde.org/
Licenses        : LGPL
Groups          : None
Provides        : phonon-qt5-backend
Depends On      : gst-plugins-base  qt5-x11extras  phonon-qt5
Optional Deps   : pulseaudio: PulseAudio support [installed]
                  gst-plugins-good: PulseAudio support and good codecs [installed]
                  gst-plugins-bad: additional codecs [installed]
                  gst-plugins-ugly: additional codecs [installed]
                  gst-libav: libav codec
Required By     : phonon-qt5
Optional For    : None
Conflicts With  : None
Replaces        : None
Installed Size  : 486.00 KiB
Packager        : Antonio Rojas <arojas@archlinux.org>
Build Date      : Tue Aug 27 15:26:44 2019
Install Date    : Sun Apr 12 03:30:12 2020
Install Reason  : Installed as a dependency for another package
Install Script  : No
Validated By    : Signature

Name            : gst-plugins-ugly
Version         : 1.16.2-3
Description     : GStreamer open-source multimedia framework ugly plugins
Architecture    : x86_64
URL             : https://gstreamer.freedesktop.org/
Licenses        : LGPL
Groups          : None
Provides        : None
Depends On      : gst-plugins-base-libs  libdvdread  libmpeg2  a52dec  libsidplay  libcdio  x264  opencore-amr
Optional Deps   : None
Required By     : None
Optional For    : phonon-qt5-gstreamer  qt5-multimedia  qutebrowser
Conflicts With  : None
Replaces        : None
Installed Size  : 670.40 KiB
Packager        : Antonio Rojas <arojas@archlinux.org>
Build Date      : Sun Apr  5 07:43:59 2020
Install Date    : Sun Apr 12 03:31:07 2020
Install Reason  : Explicitly installed
Install Script  : No
Validated By    : Signature

Name            : gst-plugins-bad
Version         : 1.16.2-7
Description     : GStreamer open-source multimedia framework bad plugins
Architecture    : x86_64
URL             : https://gstreamer.freedesktop.org/
Licenses        : LGPL
Groups          : None
Provides        : None
Depends On      : gst-plugins-bad-libs=1.16.2  gst-plugins-good  aom  libass  libbs2b  bzip2  chromaprint  pango  lcms2  curl  libxml2  libdc1394  libde265  openssl  libdca  faac  faad2  libfdk-aac  fluidsynth  libgme  nettle  libkate  liblrdf  lilv  libmms  libmodplug  mjpegtools  libmpcdec  neon  libofa  openal  openexr  openjpeg2  opus  libdvdnav  libdvdread  librsvg  rtmpdump  sbc  libsndfile  soundtouch  spandsp  srt  libsrtp  zvbi  vulkan-icd-loader  libxcb  wayland  libwebp  libnice  webrtc-audio-processing  wildmidi  x265  zbar
Optional Deps   : None
Required By     : kamoso  pulseeffects
Optional For    : farstream  phonon-qt5-gstreamer  qt5-multimedia  qutebrowser  webkit2gtk
Conflicts With  : None
Replaces        : None
Installed Size  : 2.63 MiB
Packager        : Antonio Rojas <arojas@archlinux.org>
Build Date      : Sun Apr  5 07:41:27 2020
Install Date    : Mon Apr  6 19:52:42 2020
Install Reason  : Installed as a dependency for another package
Install Script  : No
Validated By    : Signature

Name            : gst-libav
Version         : 1.16.2-1
Description     : GStreamer open-source multimedia framework FFmpeg plugin
Architecture    : x86_64
URL             : https://gstreamer.freedesktop.org/
Licenses        : GPL
Groups          : None
Provides        : gst-ffmpeg=1.16.2-1
Depends On      : gst-plugins-base-libs  bzip2  ffmpeg
Optional Deps   : None
Required By     : None
Optional For    : midori  phonon-qt5-gstreamer  qt5-multimedia  qutebrowser  webkit2gtk
Conflicts With  : None
Replaces        : None
Installed Size  : 230.26 KiB
Packager        : Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
Build Date      : Fri Dec  6 17:40:56 2019
Install Date    : Sun Apr 12 11:54:38 2020
Install Reason  : Explicitly installed
Install Script  : No
Validated By    : Signature

Arch Linux

#1 2020-04-12 05:45:40

Dolphin video preview not working (KDE)

#2 2020-04-12 12:31:17

Re: Dolphin video preview not working (KDE)

#3 2020-04-12 15:00:43

Re: Dolphin video preview not working (KDE)

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