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vlc is not able to play any videos. Currently I'm running Manjaro 18.0 xfce with x11 and vlc 3.0.4-7. My suspicion is that vlc can't find or is not configured to look for xcb_window and is instead trying to use xcb_glx. Here's the console output for vlc -vvvv

[00007f01d8058d20] main video output error: video output creation failed

[00007f01d80620a0] dbus_screensaver inhibit debug: got cookie 1747901769

[00007f01d80620a0] main inhibit debug: removing module "dbus_screensaver"

[00007f01d80a2aa0] qt window debug: releasing video...

[00005562013e9fd0] qt interface debug: Video is not needed anymore

[00007f01d80499b0] main spu text debug: removing module "freetype"

[00007f01d80c55d0] main scale debug: removing module "yuvp"

[00007f01d804e400] main scale debug: removing module "swscale"

[00007f0204c1ac00] main decoder error: failed to create video output

[00007f01d00499d0] main spu text debug: looking for text renderer module matching "any": 2 candidates

[00007f01d00499d0] freetype spu text debug: Building font databases.

[00007f01d00499d0] freetype spu text debug: Took -9372 microseconds

[00007f01d00499d0] main spu text debug: using text renderer module "freetype"

[00007f01d004e760] main scale debug: looking for video converter module matching "any": 23 candidates

[00007f01d004e760] swscale scale debug: 32x32 (32x32) chroma: YUVA -> 16x16 (16x16) chroma: RGBA with scaling using Bicubic (good quality)

[00007f01d004e760] main scale debug: using video converter module "swscale"

[00007f01d00c58d0] main scale debug: looking for video converter module matching "any": 23 candidates

[00007f01d00c58d0] yuvp scale debug: YUVP to YUVA converter

[00007f01d00c58d0] main scale debug: using video converter module "yuvp"

[00007f01d007cd90] main video output debug: Deinterlacing available

[00007f01d007cd90] main video output debug: deinterlace -1, mode auto, is_needed 0

[00007f01d00a2ee0] main window debug: looking for vout window module matching "qt,any": 6 candidates

[00007f01d00a2ee0] qt window debug: requesting video window...

[00007f01d00a2ee0] main window debug: using vout window module "qt"

[00007f01d00a0490] main inhibit debug: looking for inhibit module matching "any": 2 candidates

[00007f01d00a2ee0] main window debug: resized to 1920x798

[00007f01d00a0490] dbus_screensaver inhibit debug: found service org.freedesktop.ScreenSaver

[00007f01d00a0490] main inhibit debug: using inhibit module "dbus_screensaver"

[00007f01d00a2ee0] main window debug: resized to 1857x933

[00007f01d007cd90] main video output debug: Opening vout display wrapper

[00007f01c0001370] main vout display debug: looking for vout display module matching "xcb_glx": 14 candidates

[00007f01c0001370] main vout display debug: no vout display modules matched

[00007f01d007cd90] main video output error: video output creation failed

Here's the output for vlc --list-verbose

VLC media player 3.0.4 Vetinari (revision 3.0.4-0-gf615db6332)

  gather                 Gathering stream output

  stream_out_rtp         RTP stream output

  stream_out_rtp         RTSP VoD server

  record                 Record stream output

  description            Description stream output

  stream_out_chromaprint Chromaprint stream output

  display                Display stream output

  smem                   Stream output to memory buffer

  setid                  Change the id of an elementary stream

  setid                  Change the language of an elementary stream

  stream_out_chromecast  Chromecast stream output

  stream_out_chromecast  Chromecast stream output

  stream_out_chromecast  Chromecast stream output

  stats                  Writes statistic info about stream

  es                     Elementary stream output

  stream_out_transcode   Transcode stream output

  delay                  Delay a stream

  cycle                  Cyclic stream output

  duplicate              Duplicate stream output

  stream_out_standard    Standard stream output

  autodel                Automatically add/delete input streams

  bridge                 Bridge stream output

  bridge                 Bridge stream output

  bridge                 Bridge stream output

  dummy                  Dummy stream output

  mosaic_bridge          Mosaic bridge stream output

  stl                    EBU STL subtitles decoder

  svcdsub                Philips OGT (SVCD subtitle) decoder

  svcdsub                Philips OGT (SVCD subtitle) packetizer

  svgdec                 SVG video decoder

  oggspots               OggSpots video decoder

  oggspots               OggSpots video packetizer

  zvbi                   VBI and Teletext decoder

  faad                   AAC audio decoder (using libfaad2)

  opus                   Opus audio decoder

  opus                   Opus audio encoder

  libmpeg2               MPEG I/II video decoder (using libmpeg2)

  scte18                 SCTE-18 decoder

  theora                 Theora video decoder

  theora                 Theora video packetizer

  theora                 Theora video encoder

  dca                    DTS Coherent Acoustics audio decoder

  omxil                  Audio/Video decoder (using OpenMAX IL)

  omxil                  Audio/Video decoder (using OpenMAX IL)

  omxil                  Video encoder (using OpenMAX IL)

  cdg                    CDG video decoder

  subsdec                Text subtitle decoder

  flac                   Flac audio decoder

  flac                   Flac audio encoder

  a52                    ATSC A/52 (AC-3) audio decoder

  t140                   T.140 text encoder

  aribsub                ARIB subtitles decoder

  xwd                    XWD image decoder

  mpg123                 MPEG audio decoder using mpg123

  rawvideo               Pseudo raw video decoder

  rawvideo               Pseudo raw video packetizer

  araw                   Raw/Log Audio decoder

  araw                   Raw audio encoder

  kate                   Kate overlay decoder

  speex                  Speex audio decoder

  speex                  Speex audio packetizer

  speex                  Speex audio encoder

  aes3                   AES3/SMPTE 302M audio decoder

  aes3                   AES3/SMPTE 302M audio packetizer

  shine                  MP3 fixed point audio encoder

  rtpvideo               Raw video encoder for RTP

  x265                   H.265/HEVC encoder (x265)

  ttml                   TTML subtitles decoder

  ttml                   TTML demuxer

  vorbis                 Vorbis audio decoder

  vorbis                 Vorbis audio packetizer

  vorbis                 Vorbis audio encoder

  avcodec                FFmpeg audio/video decoder

  avcodec                FFmpeg audio/video decoder

  avcodec                FFmpeg audio/video decoder

  avcodec                FFmpeg audio/video encoder

  twolame                Libtwolame audio encoder

  spdif                  S/PDIF pass-through decoder

  jpeg                   JPEG image decoder

  jpeg                   JPEG image encoder

  spudec                 DVD subtitles decoder

  spudec                 DVD subtitles packetizer

  subsusf                USF subtitles decoder

  crystalhd              Crystal HD hardware video decoder

  scte27                 SCTE-27 decoder

  adpcm                  ADPCM audio decoder

  dvbsub                 DVB subtitles decoder

  dvbsub                 DVB subtitles encoder

  vaapi                  VA-API video decoder

  cc                     Closed Captions decoder

  x264                   H.264/MPEG-4 Part 10/AVC encoder (x264)

  edummy                 Dummy encoder

  uleaddvaudio           Ulead DV audio decoder

  ddummy                 Dummy decoder

  ddummy                 Dummy decoder

  ddummy                 Dummy decoder

  ddummy                 Dump decoder

  ddummy                 Dummy decoder

  ddummy                 Dummy decoder

  textst                 HDMV TextST subtitles decoder

  vaapi_drm              VA-API video decoder via DRM

  sdl_image              SDL_image video decoder

  png                    PNG video decoder

  png                    PNG video encoder

  cvdsub                 CVD subtitle decoder

  cvdsub                 Chaoji VCD subtitle packetizer

  lpcm                   Linear PCM audio decoder

  lpcm                   Linear PCM audio packetizer

  lpcm                   Linear PCM audio encoder

  substx3g               tx3g subtitles decoder

  webvtt                 WEBVTT subtitles decoder

  webvtt                 WEBVTT subtitles parser

  webvtt                 WEBVTT subtitles parser

  libass                 Subtitle renderers using libass

  g711                   G.711 decoder

  g711                   G.711 encoder

  wall                   Wall video filter

  panoramix              Panoramix: wall with overlap video filter

  clone                  Clone video filter

  mp4                    MP4 stream demuxer

  demuxdump              File dumper

  demux_cdg              CDG demuxer

  real                   Real demuxer

  vobsub                 Vobsub subtitles parser

  caf                    CAF demuxer

  mod                    MOD demuxer (libmodplug)

  directory              Directory import

  mpc                    MusePack demuxer

  demux_chromecast       Chromecast demux wrapper

  subtitle               Text subtitle parser

  mkv                    Matroska stream demuxer

  h26x                   H264 video demuxer

  h26x                   HEVC/H.265 video demuxer

  nsc                    Windows Media NSC metademux

  nsv                    NullSoft demuxer

  au                     AU demuxer

  nuv                    Nuv demuxer

  adaptive               Unified adaptive streaming for DASH/HLS

  image                  Image demuxer

  aiff                   AIFF demuxer

  ogg                    OGG demuxer

  es                     MPEG-I/II/4 / A52 / DTS / MLP audio

  es                     MPEG-4 video

  tta                    TTA demuxer

  rawaud                 Raw audio demuxer

  avi                    AVI demuxer

  pva                    PVA demuxer

  rawdv                  DV (Digital Video) demuxer

  noseek                 Seek prevention demux filter

  vc1                    VC1 video demuxer

  mpgv                   MPEG-I/II video demuxer

  sid                    C64 sid demuxer

  ts                     MPEG Transport Stream demuxer

  xa                     XA demuxer

  avformat               Avformat demuxer

  avformat               Avformat muxer

  ps                     MPEG-PS demuxer

  ps                     MPEG-PS demuxer

  smf                    SMF demuxer

  wav                    WAV demuxer

  playlist               Playlist

  playlist               M3U playlist import

  playlist               RAM playlist import

  playlist               PLS playlist import

  playlist               B4S playlist import

  playlist               DVB playlist import

  playlist               Podcast parser

  playlist               XSPF playlist import

  playlist               New winamp 5.2 shoutcast import

  playlist               ASX playlist import

  playlist               Kasenna MediaBase parser

  playlist               QuickTime Media Link importer

  playlist               Dummy IFO demux

  playlist               iTunes Music Library importer

  playlist               WPL playlist import

  voc                    VOC demuxer

  ty                     TY Stream audio/video demux

  rawvid                 Raw video demuxer

  asf                    ASF/WMV demuxer

  flacsys                FLAC demuxer

  demux_stl              EBU STL subtitles parser

  mjpeg                  M-JPEG camera demuxer

  diracsys               Dirac video demuxer

  vdpau_adjust           VDPAU adjust video filter

  vdpau_deinterlace      VDPAU deinterlacing filter

  vdpau_chroma           VDPAU surface conversions

  vdpau_chroma           VDPAU surface conversions

  vdpau_display          VDPAU output

  vdpau_avcodec          VDPAU video decoder

  vdpau_sharpen          VDPAU sharpen video filter

  mosaic                 Mosaic video sub source

  audiobargraph_v        Audio Bar Graph Video sub source

  audiobargraph_v        Audio Bar Graph Video sub source

  marq                   Marquee display

  subsdelay              Subtitle delay

  remoteosd              Remote-OSD over VNC

  dynamicoverlay         Dynamic video overlay

  logo                   Logo sub source

  logo                   Logo video filter

  rss                    RSS and Atom feed display

  blend                  Video pictures blending

  hqdn3d                 High Quality 3D Denoiser filter

  scale                  Video scaling filter

  scene                  Scene video filter

  posterize              Posterize video filter

  motiondetect           Motion detect video filter

  postproc               Video post processing filter

  gaussianblur           Gaussian blur video filter

  colorthres             Color threshold filter

  wave                   Wave video filter

  fps                    FPS conversion video filter

  adjust                 Image properties filter

  grain                  Grain video filter

  deinterlace            Deinterlacing video filter

  antiflicker            antiflicker video filter

  transform              Video transformation filter

  mirror                 Mirror video filter

  ball                   Ball video filter

  magnify                Magnify/Zoom interactive video filter

  extract                Extract RGB component video filter

  puzzle                 Puzzle interactive game video filter

  alphamask              Alpha mask video filter

  vhs                    VHS movie effect video filter

  oldmovie               Old movie effect video filter

  erase                  Erase video filter

  freeze                 Freezing interactive video filter

  motionblur             Motion blur filter

  croppadd               Video cropping filter

  sepia                  Sepia video filter

  gradient               Gradient video filter

  edgedetection          Edge detection video filter

  blendbench             Blending benchmark filter

  invert                 Invert video filter

  canvas                 Canvas video filter

  psychedelic            Psychedelic video filter

  anaglyph               Convert 3D picture to anaglyph image video filter

  gradfun                Gradfun video filter

  bluescreen             Bluescreen video filter

  sharpen                Sharpen video filter

  ripple                 Ripple video filter

  rotate                 Rotate video filter

  dtv                    Digital Television and Radio

  idummy                 Dummy input

  attachment             Attachment input

  dc1394                 IIDC Digital Camera (FireWire) input

  imem                   Memory input

  imem                   Memory input

  timecode               Time code subpicture elementary stream generator

  access_alsa            ALSA audio capture

  udp                    UDP input

  access_realrtsp        Real RTSP

  pulsesrc               PulseAudio input

  vcd                    VCD input

  nfs                    NFS input

  concat                 Concatenated inputs

  satip                  SAT>IP Receiver Plugin

  sdp                    Session Description Protocol

  cdda                   Audio CD input

  cdda                   Audio CD input

  dv1394                 Digital Video (Firewire/ieee1394) input

  access_mms             Microsoft Media Server (MMS) input

  dvdread                DVDRead Input (no menu support)

  dvb                    DVB input with v4l2 support

  vdr                    VDR recordings

  linsys_sdi             SDI Input

  linsys_sdi             SDI Demux

  libbluray              Blu-ray Disc support (libbluray)

  libbluray              BluRay demuxer

  dvdnav                 DVDnav Input

  dvdnav                 DVDnav demuxer

  live555                RTP/RTSP/SDP demuxer (using Live555)

  live555                RTSP/RTP access and demux

  shm                    Shared memory framebuffer

  linsys_hdsdi           HD-SDI Input

  http                   HTTP input

  avio                   libavformat AVIO access

  avio                   libavformat AVIO access output

  smb                    SMB input

  filesystem             File input

  filesystem             File input

  sftp                   SFTP input

  access_mtp             MTP input

  imem_access            In-memory stream input

  rtp                    Real-Time Protocol (RTP) input

  access                 HTTPS input

  tcp                    TCP input

  v4l2                   Video4Linux input

  v4l2                   Video4Linux compressed A/V input

  v4l2                   Video4Linux radio tuner

  ftp                    FTP input

  ftp                    FTP upload output

  gestures               Mouse gestures control interface

  dummy                  Dummy interface

  lirc                   Infrared remote control interface

  dbus                   D-Bus control interface

  oldrc                  Remote control interface

  netsync                Network synchronization

  hotkeys                Hotkeys management interface

  motion                 motion control interface

  xcb_hotkeys            Global Hotkeys interface

  gnutls                 GNU TLS transport layer security

  gnutls                 GNU TLS server

  vorepository           addons.videolan.org addons finder

  vorepository           single .vlp archive addons finder

  stats                  Stats encoder function

  stats                  Stats decoder function

  stats                  Stats decoder function

  stats                  Stats decoder function

  stats                  Stats demux function

  rtsp                   Legacy RTSP VoD server

  logger                 File logging

  xdg                    XDG screen saver inhibition

  dbus_screensaver       D-Bus screen saver inhibition

  xml                    XML Parser (using libxml2)

  xml                    XML Parser (using libxml2)

  export                 export

  export                 M3U playlist export

  export                 M3U8 playlist export

  export                 XSPF playlist export

  export                 HTML playlist export

  fingerprinter          Track fingerprinter (based on Acoustid)

  audioscrobbler         Submission of played songs to last.fm

  fsstorage              Addons local storage installer

  fsstorage              Addons local storage lister

  adummy                 Dummy audio output

  alsa                   ALSA audio output

  afile                  File audio output

  amem                   Audio memory output

  pulse                  Pulseaudio audio output

  sndio                  OpenBSD sndio audio output

  lua                    Lua interpreter

  lua                    Lua HTTP

  lua                    Command-line interface

  lua                    Lua Telnet

  lua                    Fetch meta data using lua scripts

  lua                    Read meta data using lua scripts

  lua                    Lua Playlist Parser Interface

  lua                    Fetch artwork using lua scripts

  lua                    Lua Extension

  lua                    Lua SD Module

  lua                    Lua interpreter

  tdummy                 Dummy font renderer

  freetype               Freetype2 font renderer

  glspectrum             3D OpenGL spectrum visualization

  visual                 Visualizer filter

  vaapi_filters          Video Accelerated API filters

  vaapi_filters          Video Accelerated API filters

  vaapi_filters          Video Accelerated API filters

  vaapi_filters          Video Accelerated API filters

  vaapi_filters          Video Accelerated API filters

  vaapi_filters          Video Accelerated API filters

  integer_mixer          Integer audio volume

  float_mixer            Single precision audio volume

  taglib                 taglib

  taglib                 taglib

  folder                 Folder meta data

  podcast                Podcasts

  podcast                Podcasts

  sap                    Network streams (SAP)

  sap                    Network streams (SAP)

  sap                    SDP Descriptions parser

  udev                   Video capture (Video4Linux)

  udev                   Audio capture (ALSA)

  udev                   Discs

  udev                   Video capture (Video4Linux)

  upnp                   Universal Plug'n'Play

  upnp                   Universal Plug'n'Play

  upnp                   Universal Plug'n'Play

  mediadirs              My Videos

  mediadirs              My Music

  mediadirs              My Pictures

  mediadirs              My Videos

  mtp                    MTP devices

  mtp                    MTP devices

  xcb_apps               Screen capture

  xcb_apps               Screen capture

  pulselist              Audio capture (PulseAudio)

  pulselist              Audio capture (PulseAudio)

  microdns               mDNS Network Discovery

  microdns               mDNS Network Discovery

  microdns               mDNS Renderer Discovery

  microdns               mDNS Network Discovery

  avahi                  Zeroconf services

  avahi                  Zeroconf services

  skins2                 Skinnable Interface

  skins2                 Skinnable Interface

  qt                     Qt interface

  qt                     Dialogs provider

  qt                     Qt interface

  ncurses                Ncurses interface

  chorus_flanger         Sound Delay

  tospdif                Audio filter for A/52/DTS->S/PDIF encapsulation

  samplerate             Secret Rabbit Code (libsamplerate) resampler

  samplerate             Secret Rabbit Code (libsamplerate) resampler

  scaletempo_pitch       Pitch Shifter

  dolby                  Simple decoder for Dolby Surround encoded streams

  stereo_widen           Simple stereo widening effect

  speex_resampler        Speex resampler

  speex_resampler        Speex resampler

  normvol                Volume normalizer

  simple_channel_mixer   Audio filter for simple channel mixing

  headphone              Headphone virtual spatialization effect

  mad                    MPEG audio layer I/II/III decoder

  audiobargraph_a        Audio part of the BarGraph function

  equalizer              Equalizer with 10 bands

  audio_format           Audio filter for PCM format conversion

  soxr                   soxr

  soxr                   soxr

  scaletempo             Audio tempo scaler synched with rate

  karaoke                Simple Karaoke filter

  mono                   Stereo to mono downmixer

  gain                   Gain control filter

  trivial                Audio filter for trivial channel mixing

  compressor             Dynamic range compressor

  ugly                   Nearest-neighbor audio resampler

  ugly                   Nearest-neighbor audio resampler

  spatializer            Audio Spatializer

  remap                  Audio channel remapper

  param_eq               Parametric Equalizer

  vc1                    VC-1 packetizer

  mlp                    MLP/TrueHD parser

  copy                   Copy packetizer

  dirac                  Dirac packetizer

  mpegvideo              MPEG-I/II video packetizer

  packetizer_avparser    avparser packetizer

  hevc                   HEVC/H.265 video packetizer

  a52                    A/52 audio packetizer

  mpeg4audio             MPEG4 audio packetizer

  h264                   H.264 video packetizer

  mpeg4video             MPEG4 video packetizer

  flac                   Flac audio packetizer

  dts                    DTS audio packetizer

  mpegaudio              MPEG audio layer I/II/III packetizer

  ps                     PS muxer

  dummy                  Dummy/Raw muxer

  mux_ts                 TS muxer (libdvbpsi)

  mux_ogg                Ogg/OGM muxer

  asf                    ASF muxer

  wav                    WAV muxer

  mp4                    MP4/MOV muxer

  mp4                    Fragmented and streamable MP4 muxer

  mpjpeg                 Multipart JPEG muxer

  avi                    AVI muxer

  secret                 Secrets are stored via libsecret

  kwallet                Secrets are stored via KWallet

  memory                 Secrets are stored in memory

  file                   Secrets are stored on a file without any encryption

  gles2                  OpenGL for Embedded Systems 2 video output

  glconv_vaapi_x11       VA-API OpenGL surface converter for X11

  yuv                    YUV video output

  wl_shm                 Wayland shared memory video output

  glconv_vaapi_wl        VA-API OpenGL surface converter for Wayland

  egl_x11                EGL extension for OpenGL

  egl_x11                EGL extension for OpenGL

  xcb_xv                 XVideo output (XCB)

  gl                     OpenGL video output

  xcb_window             X11 video window (XCB)

  xcb_window             Embedded window video

  caca                   Color ASCII art video output

  glx                    GLX extension for OpenGL

  egl_wl                 EGL extension for OpenGL

  egl_wl                 EGL extension for OpenGL

  fb                     GNU/Linux framebuffer video output

  wl_shell               Wayland shell surface

  glconv_vaapi_drm       VA-API OpenGL surface converter for DRM

  xdg_shell              XDG shell surface

  vmem                   Video memory output

  vdummy                 Dummy video output

  vdummy                 Statistics video output

  xcb_x11                X11 video output (XCB)

  flaschen               Flaschen-Taschen video output

  glconv_vdpau           VDPAU OpenGL surface converter

  aa                     ASCII-art video output

  i420_rgb_mmx           MMX I420,IYUV,YV12 to RV15,RV16,RV24,RV32 

...
Had to trim the output

Changing the default setting->Output Modules: Video Output Module from automatic to x11 video module (XCB) fixed this issue.