VLC could not decode the format "hevc" if run from Dolphin

I have this issue if I run VLC or any other player from within Dolphin. But if I run it from the terminal it works just fine.

Selection_131

Codec not supported:

VLC could not decode the format “hevc” (MPEG-H Part2/HEVC (H.265))

Codec not supported:

VLC could not decode the format "a52 " (A52 Audio (aka AC3))

Codec not supported:

VLC could not decode the format "a52 " (A52 Audio (aka AC3))

Can you post software version information and system information?

I cannot reproduce this on my end.


Operating System: Manjaro Linux
KDE Plasma Version: 5.22.5
KDE Frameworks Version: 5.87.0
Qt Version: 5.15.2
Kernel Version: 5.14.10-1-MANJARO (64-bit)
Graphics Platform: X11
Processors: 8 × 11th Gen Intel® Core™ i7-1165G7 @ 2.80GHz
Memory: 15.4 GiB of RAM
Graphics Processor: Mesa Intel® Xe Graphics

VLC Version: 3.0.16-3
Dolphin Version: 21.08.2


You can also run VLC with higher verbosity logging.

  • Tools → Messages → Verbosity Level

Operating System: Manjaro Linux
KDE Plasma Version: 5.22.5
KDE Frameworks Version: 5.87.0
Qt Version: 5.15.2
Kernel Version: 5.10.70-1-MANJARO (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i5-6300U CPU @ 2.40GHz
Memory: 19,4 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 520

VLC version 3.0.16 Vetinari (3.0.13-8-g41878ff4f2)
dolphin 21.08.2

When I run VLC from Dolphin I can’t see any std output. To see it it’s necessary to run it from a terminal, but in this case (running from terminal) it works fine.

VLC has an internal log viewer. You can set it to a higher verbosity (as explained in my earlier post.)


EDIT: Another method is to invoke dolphin itself from a terminal, and then view the output in the terminal as you proceed like usual (opening the video by double-clicking it within Dolphin.)

I was also unable to reproduce any error; my system information below:


Operating System: Manjaro Linux
KDE Plasma Version: 5.22.5
KDE Frameworks Version: 5.87.0
Qt Version: 5.15.2
Kernel Version: 5.14.10-1-MANJARO (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i5-6200U CPU @ 2.30GHz
Memory: 14.9 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 520


VLC media player 3.0.16 Vetinari (revision 3.0.13-8-g41878ff4f2)
VLC version 3.0.16 Vetinari (3.0.13-8-g41878ff4f2)


dolphin 21.08.2

The full log is


main debug: processing request item: The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv, node: Playlist, skip: 0
main debug: Creating an input for preparsing 'The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv'
main debug: rebuilding array of current - root Playlist
main debug: rebuild done - 3 items, index 2
main debug: starting playback of new item
main debug: resyncing on The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv
main debug: The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv is at 2
main debug: creating new input thread
main debug: looking for meta fetcher module matching "any": 1 candidates
lua debug: Trying Lua scripts in /home/q/.local/share/vlc/lua/meta/fetcher
lua debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/fetcher
lua debug: Trying Lua scripts in /usr/share/vlc/lua/meta/fetcher
main debug: Creating an input for 'The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv'
main debug: no meta fetcher modules matched
main debug: looking for art finder module matching "any": 2 candidates
lua debug: Trying Lua scripts in /home/q/.local/share/vlc/lua/meta/art
lua debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/art
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/00_musicbrainz.luac
main debug: requesting art for new input thread
lua debug: skipping script (unmatched scope) /usr/lib/vlc/lua/meta/art/00_musicbrainz.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/01_googleimage.luac
lua debug: skipping script (unmatched scope) /usr/lib/vlc/lua/meta/art/01_googleimage.luac
main debug: using timeshift granularity of 50 MiB
main debug: using default timeshift path
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/02_frenchtv.luac
lua debug: skipping script (unmatched scope) /usr/lib/vlc/lua/meta/art/02_frenchtv.luac
main debug: `file:///home/q/Videos/movies/The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv' gives access `file' demux `any' path `/home/q/Videos/movies/The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv'
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/03_lastfm.luac
main debug: creating demux: access='file' demux='any' location='/home/q/Videos/movies/The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv' file='/home/q/Videos/movies/The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv'
main debug: looking for access_demux module matching "file": 19 candidates
lua debug: skipping script (unmatched scope) /usr/lib/vlc/lua/meta/art/03_lastfm.luac
lua debug: Trying Lua scripts in /usr/share/vlc/lua/meta/art
main debug: no art finder modules matched
main debug: looking for meta fetcher module matching "any": 1 candidates
lua debug: Trying Lua scripts in /home/q/.local/share/vlc/lua/meta/fetcher
lua debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/fetcher
lua debug: Trying Lua scripts in /usr/share/vlc/lua/meta/fetcher
main debug: no meta fetcher modules matched
main debug: no access_demux modules matched
main debug: creating access: file:///home/q/Videos/movies/The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv
main debug: (path: /home/q/Videos/movies/The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv)
main debug: looking for access module matching "file": 30 candidates
main debug: using access module "filesystem"
main debug: looking for stream_filter module matching "prefetch,cache_read": 26 candidates
cache_read debug: Using stream method for AStream*
cache_read debug: starting pre-buffering
cache_read debug: received first data after 0 ms
cache_read debug: pre-buffering done 1024 bytes in 0s - 20408 KiB/s
main debug: using stream_filter module "cache_read"
main debug: looking for stream_filter module matching "any": 26 candidates
main debug: looking for art finder module matching "any": 2 candidates
lua debug: Trying Lua scripts in /home/q/.local/share/vlc/lua/playlist
lua debug: Trying Lua scripts in /usr/lib/vlc/lua/playlist
lua debug: Trying Lua scripts in /home/q/.local/share/vlc/lua/meta/art
lua debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/art
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/anevia_streams.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/00_musicbrainz.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/anevia_xml.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/01_googleimage.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/appletrailers.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/02_frenchtv.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/bbc_co_uk.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/03_lastfm.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/cue.luac
lua debug: Trying Lua scripts in /usr/share/vlc/lua/meta/art
main debug: no art finder modules matched
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/dailymotion.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/jamendo.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/koreus.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/liveleak.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/newgrounds.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/rockbox_fm_presets.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/soundcloud.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/twitch.luac
main debug: looking for meta fetcher module matching "any": 1 candidates
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/vimeo.luac
lua debug: Trying Lua scripts in /home/q/.local/share/vlc/lua/meta/fetcher
lua debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/fetcher
lua debug: Trying Lua scripts in /usr/share/vlc/lua/meta/fetcher
main debug: no meta fetcher modules matched
main debug: looking for art finder module matching "any": 2 candidates
lua debug: Trying Lua scripts in /home/q/.local/share/vlc/lua/meta/art
lua debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/art
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/00_musicbrainz.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/vocaroo.luac
lua debug: skipping script (unmatched scope) /usr/lib/vlc/lua/meta/art/00_musicbrainz.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/playlist/youtube.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/01_googleimage.luac
lua debug: Trying Lua scripts in /usr/share/vlc/lua/playlist
main debug: no stream_filter modules matched
main debug: looking for stream_directory module matching "any": 1 candidates
main debug: no stream_directory modules matched
main debug: attachment of directory-extractor failed for file:///home/q/Videos/movies/The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv
main debug: looking for stream_filter module matching "record": 26 candidates
main debug: using stream_filter module "record"
main debug: creating demux: access='file' demux='any' location='/home/q/Videos/movies/The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv' file='/home/q/Videos/movies/The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv'
main debug: looking for demux module matching "mkv": 55 candidates
mkv debug: | + Seek head
mkv debug: | - info at 288
mkv debug: | + Information
mkv debug: | | + TimecodeScale=1000000
mkv debug: | | + Title=The Wandering Earth (2019)
mkv debug: | | + Muxing Application=Lavf58.20.100
mkv debug: | | + Writing Application=XviD4PSP 8.0.91
mkv debug: | | + UID=-104308505
mkv debug: | | + Duration=7507008
mkv debug: | - tracks at 406
mkv debug: | + Tracks
mkv debug: | | + Track Entry
mkv debug: | | | + Track Number=1
mkv debug: | | | + Track UID=1
mkv debug: | | | + Track Lacing=0
mkv debug: | | | + Track Language=`zho'
mkv debug: | | | + Track CodecId=V_MPEGH/ISO/HEVC
mkv debug: | | | + Track Type=video
mkv debug: | | | + Track Default Duration=41666666
mkv debug: | | | + Track Video
mkv debug: | | | | + width=1024
mkv debug: | | | | + height=402
mkv debug: | | | | + display width=21760
mkv debug: | | | | + display height=8509
mkv debug: | | | | + Track Video Display Unit=dar
mkv debug: | | | | + Video Colors
mkv debug: | | | + Track CodecPrivate size=130
mkv debug: | | + Track Entry
mkv debug: | | | + Track Number=2
mkv debug: | | | + Track UID=2
mkv debug: | | | + Track Lacing=0
mkv debug: | | | + Track Name=HDRezka Studio
mkv debug: | | | + Track Language=`rus'
mkv debug: | | | + Track CodecId=A_AC3
mkv debug: | | | + Track Type=audio
mkv debug: | | | + Track Audio
mkv debug: | | | | + achan=2
mkv debug: | | | | + afreq=48000
mkv debug: | | | | + abits=32
mkv debug: | | + Track Entry
mkv debug: | | | + Track Number=3
mkv debug: | | | + Track UID=3
mkv debug: | | | + Track Lacing=0
mkv debug: | | | + Track Name=Китайский
mkv debug: | | | + Track Language=`zho'
mkv debug: | | | + Track Default=0
mkv debug: | | | + Track CodecId=A_AC3
mkv debug: | | | + Track Type=audio
mkv debug: | | | + Track Audio
mkv debug: | | | | + achan=2
mkv debug: | | | | + afreq=48000
mkv debug: | | | | + abits=32
mkv debug: | | + Track Entry
mkv debug: | | | + Track Number=4
mkv debug: | | | + Track UID=4
mkv debug: | | | + Track Lacing=0
mkv debug: | | | + Track Name=Rus Forced
mkv debug: | | | + Track Language=`rus'
mkv debug: | | | + Track Forced=1
mkv debug: | | | + Track CodecId=S_TEXT/UTF8
mkv debug: | | | + Track Type=subtitle
mkv debug: | | + Track Entry
mkv debug: | | | + Track Number=5
mkv debug: | | | + Track UID=5
mkv debug: | | | + Track Lacing=0
lua debug: skipping script (unmatched scope) /usr/lib/vlc/lua/meta/art/01_googleimage.luac
mkv debug: | | | + Track Name=Rus Full
mkv debug: | | | + Track Language=`rus'
mkv debug: | | | + Track Default=0
mkv debug: | | | + Track CodecId=S_TEXT/UTF8
mkv debug: | | | + Track Type=subtitle
mkv debug: | | + Track Entry
mkv debug: | | | + Track Number=6
mkv debug: | | | + Track UID=6
mkv debug: | | | + Track Lacing=0
mkv debug: | | | + Track Name=Eng Full
mkv debug: | | | + Track Language=`eng'
mkv debug: | | | + Track Default=0
mkv debug: | | | + Track CodecId=S_TEXT/UTF8
mkv debug: | | | + Track Type=subtitle
mkv debug: | - chapters at 987
mkv debug: | + Chapters
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/02_frenchtv.luac
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID=1
mkv debug: | | | | + ChapterTimeStart=0
mkv debug: | | | | + ChapterTimeEnd=542708333
mkv debug: | | | | + ChapterFlagHidden=no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString=Chapter 01
mkv debug: | | | | | + ChapterLanguage=und
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID=2
mkv debug: | | | | + ChapterTimeStart=542708333
mkv debug: | | | | + ChapterTimeEnd=1339250000
mkv debug: | | | | + ChapterFlagHidden=no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString=Chapter 02
mkv debug: | | | | | + ChapterLanguage=und
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID=3
mkv debug: | | | | + ChapterTimeStart=1339250000
mkv debug: | | | | + ChapterTimeEnd=1956416667
mkv debug: | | | | + ChapterFlagHidden=no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString=Chapter 03
mkv debug: | | | | | + ChapterLanguage=und
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID=4
mkv debug: | | | | + ChapterTimeStart=1956416667
mkv debug: | | | | + ChapterTimeEnd=2484666667
mkv debug: | | | | + ChapterFlagHidden=no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString=Chapter 04
mkv debug: | | | | | + ChapterLanguage=und
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID=5
mkv debug: | | | | + ChapterTimeStart=2484666667
mkv debug: | | | | + ChapterTimeEnd=3044166667
mkv debug: | | | | + ChapterFlagHidden=no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString=Chapter 05
mkv debug: | | | | | + ChapterLanguage=und
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID=6
mkv debug: | | | | + ChapterTimeStart=3044166667
mkv debug: | | | | + ChapterTimeEnd=3523333333
mkv debug: | | | | + ChapterFlagHidden=no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString=Chapter 06
mkv debug: | | | | | + ChapterLanguage=und
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID=7
mkv debug: | | | | + ChapterTimeStart=3523333333
mkv debug: | | | | + ChapterTimeEnd=4167625000
mkv debug: | | | | + ChapterFlagHidden=no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString=Chapter 07
mkv debug: | | | | | + ChapterLanguage=und
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID=8
mkv debug: | | | | + ChapterTimeStart=4167625000
mkv debug: | | | | + ChapterTimeEnd=4809625000
mkv debug: | | | | + ChapterFlagHidden=no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString=Chapter 08
mkv debug: | | | | | + ChapterLanguage=und
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID=9
mkv debug: | | | | + ChapterTimeStart=4809625000
mkv debug: | | | | + ChapterTimeEnd=5665291667
mkv debug: | | | | + ChapterFlagHidden=no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString=Chapter 09
mkv debug: | | | | | + ChapterLanguage=und
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID=10
mkv debug: | | | | + ChapterTimeStart=5665291667
mkv debug: | | | | + ChapterTimeEnd=6338583333
mkv debug: | | | | + ChapterFlagHidden=no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString=Chapter 10
mkv debug: | | | | | + ChapterLanguage=und
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID=11
mkv debug: | | | | + ChapterTimeStart=6338583333
mkv debug: | | | | + ChapterTimeEnd=6938250000
mkv debug: | | | | + ChapterFlagHidden=no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString=Chapter 11
mkv debug: | | | | | + ChapterLanguage=und
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID=12
mkv debug: | | | | + ChapterTimeStart=6938250000
mkv debug: | | | | + ChapterTimeEnd=7507000000
mkv debug: | | | | + ChapterFlagHidden=no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString=Chapter 12
mkv debug: | | | | | + ChapterLanguage=und
mkv debug: | - tags at 1772
mkv debug: | + Tags
mkv debug: + Unknown (N7libebml9EbmlCrc32E)
mkv debug: + Tag
mkv debug: | + Targets
mkv debug: | + Simple Tag 
mkv debug: | | + Meta ENCODING_INFO: MATROSKA,WEBM > MKV
mkv debug: | + Simple Tag 
mkv debug: | | + Meta ENCODER: Lavf58.20.100
mkv debug: + Tag
mkv debug: | + Targets
mkv debug: | | + TrackUID: 1
mkv debug: | | + LoadTag Unknown (N11libmatroska14KaxTagTrackUIDE)
mkv debug: | + Simple Tag 
mkv debug: | | + Meta ENCODING_INFO: HEVC > HEVC NVENC VBR 2000kbps HQ
mkv debug: + Tag
mkv debug: | + Targets
mkv debug: | | + TrackUID: 2
mkv debug: | | + LoadTag Unknown (N11libmatroska14KaxTagTrackUIDE)
mkv debug: | + Simple Tag 
mkv debug: | | + Meta ENCODING_INFO: AC3 > AC3 CBR 160kbps
mkv debug: + Tag
mkv debug: | + Targets
mkv debug: | | + TrackUID: 3
mkv debug: | | + LoadTag Unknown (N11libmatroska14KaxTagTrackUIDE)
mkv debug: | + Simple Tag 
mkv debug: | | + Meta ENCODING_INFO: AC3 > AC3 CBR 160kbps
mkv debug: + Tag
mkv debug: | + Targets
mkv debug: | | + TrackUID: 4
mkv debug: | | + LoadTag Unknown (N11libmatroska14KaxTagTrackUIDE)
mkv debug: | + Simple Tag 
mkv debug: | | + Meta ENCODING_INFO: SUBRIP > COPY Быстрое
mkv debug: + Tag
mkv debug: | + Targets
mkv debug: | | + TrackUID: 5
mkv debug: | | + LoadTag Unknown (N11libmatroska14KaxTagTrackUIDE)
mkv debug: | + Simple Tag 
lua debug: skipping script (unmatched scope) /usr/lib/vlc/lua/meta/art/02_frenchtv.luac
mkv debug: | | + Meta ENCODING_INFO: SUBRIP > COPY Быстрое
mkv debug: + Tag
mkv debug: | + Targets
mkv debug: | | + TrackUID: 6
mkv debug: | | + LoadTag Unknown (N11libmatroska14KaxTagTrackUIDE)
mkv debug: | + Simple Tag 
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/03_lastfm.luac
mkv debug: | | + Meta ENCODING_INFO: SUBRIP > COPY Быстрое
mkv debug: loading tags done.
mkv debug: | - cues at 2130886988
mkv debug: | + Cues
mkv debug: * Unknown (N7libebml9EbmlCrc32E)
qt debug: IM: Setting an input
lua debug: skipping script (unmatched scope) /usr/lib/vlc/lua/meta/art/03_lastfm.luac
lua debug: Trying Lua scripts in /usr/share/vlc/lua/meta/art
main debug: no art finder modules matched
main debug: looking for meta fetcher module matching "any": 1 candidates
lua debug: Trying Lua scripts in /home/q/.local/share/vlc/lua/meta/fetcher
lua debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/fetcher
lua debug: Trying Lua scripts in /usr/share/vlc/lua/meta/fetcher
main debug: no meta fetcher modules matched
main debug: looking for art finder module matching "any": 2 candidates
lua debug: Trying Lua scripts in /home/q/.local/share/vlc/lua/meta/art
lua debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/art
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/00_musicbrainz.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/01_googleimage.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/02_frenchtv.luac
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/art/03_lastfm.luac
lua debug: Trying Lua scripts in /usr/share/vlc/lua/meta/art
main debug: no art finder modules matched
mkv debug: MKV/Ebml Parser: m_el[mi_level] == NULL
mkv debug: | - loading cues done.
mkv debug: | + Information
mkv debug: | + Tracks
mkv debug: | + Chapters
mkv debug: | + Tags
mkv debug: | + Cluster
mkv debug: Virtual chapter Chapter 01 from 0 to 542708333 - 
mkv debug: Virtual chapter Chapter 02 from 542708333 to 1339250000 - 
mkv debug: Virtual chapter Chapter 03 from 1339250000 to 1956416667 - 
mkv debug: Virtual chapter Chapter 04 from 1956416667 to 2484666667 - 
mkv debug: Virtual chapter Chapter 05 from 2484666667 to 3044166667 - 
mkv debug: Virtual chapter Chapter 06 from 3044166667 to 3523333333 - 
mkv debug: Virtual chapter Chapter 07 from 3523333333 to 4167625000 - 
mkv debug: Virtual chapter Chapter 08 from 4167625000 to 4809625000 - 
mkv debug: Virtual chapter Chapter 09 from 4809625000 to 5665291667 - 
mkv debug: Virtual chapter Chapter 10 from 5665291667 to 6338583333 - 
mkv debug: Virtual chapter Chapter 11 from 6338583333 to 6938250000 - 
mkv debug: Virtual chapter Chapter 12 from 6938250000 to 7507000000 - 
mkv debug: Virtual chapter from 0 to -1 - 
mkv debug: NEW START CHAPTER uid=1
mkv debug: found 6 es
main debug: selecting program id=0
mkv debug: seek: preroll{ track: 1, pts: 0, fpos: 2371 skip: 2371} 
mkv debug: seek: preroll{ req: 1, start-pts: 1, start-fpos: 2371} 
mkv debug: Starting the UI Hook
main debug: using demux module "mkv"
main debug: attempt to destroy nonexistent variable "title 0"
main debug: looking for a subtitle file in /home/q/Videos/movies/
main debug: looking for video decoder module matching "any": 17 candidates
avcodec debug: using ffmpeg Lavc58.134.100
avcodec debug: CPU flags: 0x000fd3db
avcodec debug: codec not found (MPEG-H Part2/HEVC (H.265))
main debug: no video decoder modules matched
main error: Codec `hevc' (MPEG-H Part2/HEVC (H.265)) is not supported.
main debug: killing decoder fourcc ` '
main debug: looking for packetizer module matching "any": 25 candidates
main debug: using packetizer module "a52"
main debug: looking for audio decoder module matching "any": 20 candidates
main debug: reusing audio output
main error: too low audio sample frequency (0)
main debug: keeping audio output
main error: failed to create audio output
avcodec debug: using ffmpeg Lavc58.134.100
avcodec debug: CPU flags: 0x000fd3db
avcodec debug: codec not found (A52 Audio (aka AC3))
main debug: no audio decoder modules matched
main error: Codec `a52 ' (A52 Audio (aka AC3)) is not supported.
main debug: killing decoder fourcc ` '
main debug: removing module "a52"
main debug: looking for packetizer module matching "any": 25 candidates
main debug: using packetizer module "a52"
main debug: looking for audio decoder module matching "any": 20 candidates
main debug: reusing audio output
main error: too low audio sample frequency (0)
main debug: keeping audio output
main error: failed to create audio output
avcodec debug: using ffmpeg Lavc58.134.100
avcodec debug: CPU flags: 0x000fd3db
avcodec debug: codec not found (A52 Audio (aka AC3))
main debug: no audio decoder modules matched
main error: Codec `a52 ' (A52 Audio (aka AC3)) is not supported.
main debug: killing decoder fourcc ` '
main debug: removing module "a52"
main debug: looking for spu decoder module matching "any": 22 candidates
avcodec debug: using ffmpeg Lavc58.134.100
avcodec debug: CPU flags: 0x000fd3db
avcodec debug: codec not found (Text subtitles with various tags)
subsdec debug: trying demuxer-specified character encoding: UTF-8
main debug: using spu decoder module "subsdec"
main debug: looking for meta reader module matching "any": 2 candidates
lua debug: Trying Lua scripts in /home/q/.local/share/vlc/lua/meta/reader
lua debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/reader
lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/reader/filename.luac
lua debug: Trying Lua scripts in /usr/share/vlc/lua/meta/reader
main debug: no meta reader modules matched
main debug: `file:///home/q/Videos/movies/The.Wandering.Earth.2019.HDRip.10bit.HEVC.mkv' successfully opened
dbus debug: Getting All properties
dbus debug: Getting All properties
dbus debug: Getting property Position
dbus debug: Getting property Position
mkv debug: New Chapter 542720000 uid=2
mkv debug: New Chapter 1339250000 uid=3
mkv debug: New Chapter 1956417000 uid=4
mkv debug: New Chapter 2484667000 uid=5
mkv debug: New Chapter 3044167000 uid=6
mkv debug: New Chapter 3523360000 uid=7
mkv debug: New Chapter 4167625000 uid=8
mkv debug: New Chapter 4809625000 uid=9
main warning: no vout found, dropping subpicture
main warning: can't get output subpicture
mkv debug: New Chapter 5665292000 uid=10
mkv debug: New Chapter 6338592000 uid=11
mkv debug: New Chapter 6938250000 uid=12
mkv warning: find KaxCues FIXME
mkv debug: MKV/Ebml Parser: m_el[mi_level] == NULL
mkv warning: EOF
mkv warning: cannot get block EOF?
main debug: EOF reached
dbus debug: Getting property Position
main warning: no vout found, dropping subpicture
main warning: can't get output subpicture
main debug: killing decoder fourcc `subt'
main debug: removing module "subsdec"
main debug: removing module "mkv"
main debug: Program doesn't contain anymore ES
mkv debug: Stopping the UI Hook
main debug: removing module "record"
main debug: removing module "cache_read"
main debug: removing module "filesystem"
main debug: dead input
main debug: changing item without a request (current 2/3)
main debug: nothing to play
qt debug: IM: Deleting the input
pulse debug: changing sink 0: alsa_output.pci-0000_00_1f.3.analog-stereo (Built-in Audio Analog Stereo)
pulse debug: changing sink 0: alsa_output.pci-0000_00_1f.3.analog-stereo (Built-in Audio Analog Stereo)
pulse debug: changing sink 0: alsa_output.pci-0000_00_1f.3.analog-stereo (Built-in Audio Analog Stereo)

Also when I run Dolphin from terminal and then double clicking on video to open it in VLC everything is fine. Looks like it relates to environment somehow…

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Do you notice the same thing happens regardless if you select “Open With” as opposed to outright double-clicking the file in Dolphin’s window?

It was happening in both cases. But for now it just disappeared… somehow. I didn’t upgrade the system…