Bug#600496: vlc: VLC seems to lock all alsa devices

Henri henrimenke4 at aim.com
Sun Oct 17 16:28:11 UTC 2010


Subject: vlc: VLC seems to lock all alsa devices
Package: vlc
Version: 1.1.3-1
Severity: normal

When I play a file with VLC and want to open another file while VLC is still
running the sound of the new file refuses to play.

E.g. VLC is running and I want to play a file with ogg123
---
$ ogg123 File.ogg

Audio Device:   Advanced Linux Sound Architecture (ALSA) output

Playing: File.ogg
Ogg Vorbis stream: 2 channel, 44100 Hz
Title:
Artist:
ReplayGain Peak (Track): 1.22616982
ReplayGain (Track): -9.07 dB
ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
ERROR: Cannot open device alsa.
---

The other way round: I play a file with ogg123 and now want to open a
file in
VLC, VLC says as a popup notice in the GUI (debug log attached):
---
Potential ALSA version problem:
VLC failed to initialize your sound output device (if any).
Please update alsa-lib to version 1.0.23-2-g8d80d5f or higher to try to fix
this issue.
---
In this case VLC begins to play the file but without sound.

To me it seems like VLC locks all alsa devices on startup and if another
program uses alsa VLC refuses to play sound.



-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (989, 'testing'), (987, 'unstable'), (986, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages vlc depends on:
ii  libaa1                  1.4p5-38         ascii art library
ii  libc6                   2.11.2-6         Embedded GNU C Library:
Shared lib
ii  libfreetype6            2.4.2-1          FreeType 2 font engine,
shared lib
ii  libfribidi0             0.19.2-1         Free Implementation of the
Unicode
ii  libgcc1                 1:4.4.5-2        GCC support library
ii  libgl1-mesa-glx [libgl1 7.7.1-4          A free implementation of
the OpenG
ii  libqtcore4              4:4.6.3-1+b1     Qt 4 core module
ii  libqtgui4               4:4.6.3-1+b1     Qt 4 GUI module
ii  libsdl-image1.2         1.2.10-2+b2      image loading library for
Simple D
ii  libsdl1.2debian         1.2.14-6.1       Simple DirectMedia Layer
ii  libstdc++6              4.4.5-2          The GNU Standard C++ Library v3
ii  libtar                  1.2.11-6         C library for manipulating
tar arc
ii  libvlccore4             1.1.3-1          base library for VLC and
its modul
ii  libx11-6                2:1.3.3-3        X11 client-side library
ii  libx11-xcb1             2:1.3.3-3        Xlib/XCB interface library
ii  libxcb-keysyms1         0.3.6-1          utility libraries for X C
Binding
ii  libxcb-randr0           1.6-1            X C Binding, randr extension
ii  libxcb-shm0             1.6-1            X C Binding, shm extension
ii  libxcb-xv0              1.6-1            X C Binding, xv extension
ii  libxcb1                 1.6-1            X C Binding
ii  libxext6                2:1.1.2-1        X11 miscellaneous extension
librar
ii  ttf-freefont            20090104-7       Freefont Serif, Sans and
Mono True
ii  vlc-nox                 1.1.3-1          multimedia player and
streamer (wi
ii  zlib1g                  1:1.2.3.4.dfsg-3 compression library - runtime

Versions of packages vlc recommends:
pn  vlc-plugin-notify             <none>     (no description available)
pn  vlc-plugin-pulse              <none>     (no description available)

Versions of packages vlc suggests:
ii  mozilla-plugin-vlc            1.1.3-1    multimedia plugin for web
browsers
pn  videolan-doc                  <none>     (no description available)

Versions of packages vlc-nox depends on:
ii  liba52-0.7.4            0.7.4-14         library for decoding ATSC
A/52 str
ii  libasound2              1.0.23-2         shared library for ALSA
applicatio
ii  libass4                 0.9.9-1          library for SSA/ASS
subtitles rend
ii  libavahi-client3        0.6.27-2         Avahi client library
ii  libavahi-common3        0.6.27-2         Avahi common library
ii  libavc1394-0            0.5.3-1+b2       control IEEE 1394
audio/video devi
ii  libavcodec52            4:0.5.2-6        ffmpeg codec library
ii  libavformat52           4:0.5.2-6        ffmpeg file format library
ii  libavutil49             4:0.5.2-6        ffmpeg utility library
ii  libc6                   2.11.2-6         Embedded GNU C Library:
Shared lib
ii  libcaca0                0.99.beta17-1    colour ASCII art library
ii  libcddb2                1.3.2-2          library to access CDDB data
- runt
ii  libcdio10               0.81-4           library to read and control
CD-ROM
ii  libdbus-1-3             1.2.24-3         simple interprocess
messaging syst
ii  libdc1394-22            2.1.2-3          high level programming
interface f
ii  libdca0                 0.0.5-3          decoding library for DTS
Coherent
ii  libdirac-encoder0       1.0.2-3          open and royalty free high
quality
ii  libdvbpsi6              0.1.7-1          library for MPEG TS and DVB
PSI ta
ii  libdvdnav4              4.1.3-7          DVD navigation library
ii  libdvdread4             4.1.3-10         library for reading DVDs
ii  libebml0                0.7.7-3.1        access library for the EBML
format
ii  libfaad2                2.7-4            freeware Advanced Audio
Decoder -
ii  libflac8                1.2.1-2+b1       Free Lossless Audio Codec -
runtim
ii  libfontconfig1          2.8.0-2.1        generic font configuration
library
ii  libfreetype6            2.4.2-1          FreeType 2 font engine,
shared lib
ii  libfribidi0             0.19.2-1         Free Implementation of the
Unicode
ii  libgcc1                 1:4.4.5-2        GCC support library
ii  libgcrypt11             1.4.5-2          LGPL Crypto library -
runtime libr
ii  libgnutls26             2.8.6-1          the GNU TLS library -
runtime libr
ii  libgpg-error0           1.6-1            library for common error
values an
ii  libkate1                0.3.7-3          Kate is a codec for karaoke
and te
ii  liblircclient0          0.8.3-5          infra-red remote control
support -
ii  liblua5.1-0             5.1.4-5          Simple, extensible,
embeddable pro
ii  libmad0                 0.15.1b-5        MPEG audio decoder library
ii  libmatroska0            0.8.1-1.1        extensible open standard
audio/vid
ii  libmodplug1             1:0.8.8.1-1      shared libraries for mod
music bas
ii  libmpcdec6              2:0.1~r459-1     MusePack decoder - library
ii  libmpeg2-4              0.4.1-3          MPEG1 and MPEG2 video
decoder libr
ii  libmtp8                 1.0.3-1          Media Transfer Protocol
(MTP) libr
ii  libncursesw5            5.7+20100313-4   shared libraries for
terminal hand
ii  libogg0                 1.2.0~dfsg-1     Ogg bitstream library
ii  libpng12-0              1.2.44-1         PNG library - runtime
ii  libpostproc51           4:0.5.2-6        ffmpeg video postprocessing
librar
ii  libproxy0               0.3.1-1          automatic proxy
configuration mana
ii  libraw1394-11           2.0.5-2          library for direct access
to IEEE
ii  libschroedinger-1.0-0   1.0.9-2          library for
encoding/decoding of D
ii  libshout3               2.2.2-5+b1       MP3/Ogg Vorbis broadcast
streaming
ii  libsmbclient            2:3.5.5~dfsg-1   shared library for
communication w
ii  libspeex1               1.2~rc1-1        The Speex codec runtime library
ii  libstdc++6              4.4.5-2          The GNU Standard C++ Library v3
ii  libswscale0             4:0.5.2-6        ffmpeg video scaling library
ii  libtag1c2a              1.6.3-1          TagLib Audio Meta-Data Library
ii  libtheora0              1.1.1+dfsg.1-3   The Theora Video
Compression Codec
ii  libtwolame0             0.3.12-1         MPEG Audio Layer 2 encoding
librar
ii  libudev0                160-1            libudev shared library
ii  libupnp3                1:1.6.6-5        Portable SDK for UPnP
Devices, ver
ii  libv4l-0                0.8.0-1          Collection of video4linux
support
ii  libvcdinfo0             0.7.23-4+b2      library to extract
information fro
ii  libvlc5                 1.1.3-1          multimedia player and
streamer lib
ii  libvlccore4             1.1.3-1          base library for VLC and
its modul
ii  libvorbis0a             1.3.1-1          The Vorbis General Audio
Compressi
ii  libvorbisenc2           1.3.1-1          The Vorbis General Audio
Compressi
ii  libxml2                 2.7.7.dfsg-4     GNOME XML library
ii  zlib1g                  1:1.2.3.4.dfsg-3 compression library - runtime

Versions of packages libvlc5 depends on:
ii  libc6                         2.11.2-6   Embedded GNU C Library:
Shared lib
ii  libvlccore4                   1.1.3-1    base library for VLC and
its modul

Versions of packages libvlccore4 depends on:
ii  libc6                         2.11.2-6   Embedded GNU C Library:
Shared lib
ii  libdbus-1-3                   1.2.24-3   simple interprocess
messaging syst
ii  vlc-data                      1.1.3-1    Common data for VLC

Versions of packages vlc is related to:
pn  libavutil50                   <none>     (no description available)
pn  libavutil51                   <none>     (no description available)

-- no debconf information
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