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Why does VLC try to find the Nvidia Vdpau backend ?

Posted: 16 Mar 2015 13:31
by shirish
Hi there,
I have an intel integrated sound and video chipset . pacmd telling/sharing what audio sink is available and used.

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[$] pacmd list-sinks|egrep -i 'index:|name:' * index: 0 name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
lspci tells this :-

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[$] lspci | grep Audio 00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 01)
and this as my Video :-

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─[$] lspci | grep VGA [17:51:35] 00:02.0 VGA compatible controller: Intel Corporation 82G33/G31 Express Integrated Graphics Controller (rev 10)
Anyways, when I run a media file in vlc I often get readings like these :-

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[00007f9550001268] xcb vout display debug: using screen 0x7b Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory
These are the flags with which vlc was built in Debian testing by the Debian maintainers :-

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[0000000000a27148] core libvlc debug: configured with ./configure '--includedir=${prefix}/include' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' '--localstatedir=/var' '--libdir=${prefix}/lib/x86_64-linux-gnu' '--libexecdir=${prefix}/lib/x86_64-linux-gnu' '--disable-dependency-tracking' '--build=x86_64-linux-gnu' 'CPPFLAGS=-D_FORTIFY_SOURCE=2' 'LDFLAGS=-Wl,-z,relro' '--config-cache' '--disable-maintainer-mode' '--disable-silent-rules' '--disable-update-check' '--enable-fast-install' '--prefix=/usr' '--docdir=/usr/share/doc/vlc-nox' '--libdir=/usr/lib' '--sysconfdir=/etc' '--with-binary-version=2' '--enable-a52' '--enable-aa' '--enable-bluray' '--enable-bonjour' '--enable-caca' '--enable-chromaprint' '--enable-dbus' '--enable-dca' '--enable-directfb' '--enable-dvbpsi' '--enable-dvdnav' '--enable-faad' '--enable-flac' '--enable-fluidsynth' '--enable-freerdp' '--enable-freetype' '--enable-fribidi' '--enable-gles1' '--enable-gles2' '--enable-glx' '--enable-gnutls' '--enable-jack' '--enable-kate' '--enable-libass' '--enable-libmpeg2' '--enable-libxml2' '--enable-lirc' '--enable-live555' '--enable-mad' '--enable-mkv' '--enable-mod' '--enable-mpc' '--enable-mtp' '--enable-mux_ogg' '--enable-ncurses' '--enable-notify' '--enable-ogg' '--enable-opus' '--enable-pulse' '--enable-qt' '--enable-realrtsp' '--enable-samplerate' '--enable-schroedinger' '--enable-sdl' '--enable-sftp' '--enable-shine' '--enable-shout' '--enable-skins2' '--enable-smbclient' '--enable-speex' '--enable-svg' '--enable-taglib' '--enable-theora' '--enable-twolame' '--enable-upnp' '--enable-vcdx' '--enable-vdpau' '--enable-vnc' '--enable-vorbis' '--enable-x264' '--enable-zvbi' '--with-kde-solid=/usr/share/kde4/apps/solid/actions/' '--disable-decklink' '--disable-dxva2' '--disable-fdkaac' '--disable-gnomevfs' '--disable-goom' '--disable-libtar' '--disable-mfx' '--disable-opencv' '--disable-projectm' '--disable-sndio' '--disable-svgdec' '--disable-telx' '--disable-vpx' '--disable-vsxu' '--disable-wasapi' '--enable-alsa' '--enable-atmo' '--enable-dc1394' '--enable-dv1394' '--enable-linsys' '--enable-omxil' '--enable-udev' '--enable-v4l2' '--enable-libva' '--enable-vcd' '--disable-oss' '--enable-crystalhd' '--enable-mmx' '--enable-sse' '--disable-neon' '--disable-altivec' 'CFLAGS=-g -O2 -fstack-protector-strong -Wformat -Werror=format-security' 'CXXFLAGS=-g -O2 -fstack-protector-strong -Wformat -Werror=format-security' 'build_alias=x86_64-linux-gnu' 'OBJCFLAGS=-g -O2 -fstack-protector-strong -Wformat -Werror=format-security'
Just to add these are the capabilities the CPU has on this system :-

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[0000000000a27148] core libvlc debug: CPU has capabilities MMX MMXEXT SSE SSE2 SSE3 SSSE3 FPU
Is there a way to disable or blacklist so that it doesn't try to find that libvdpau_nvidia.so library. While I do have some more issues which I'll share in due course, this will make it one less thing to worry about, if it can be done.

Re: Why does VLC try to find the Nvidia Vdpau backend ?

Posted: 16 Mar 2015 14:16
by Rémi Denis-Courmont
That error comes from libvdpau, not VLC. Maybe your X11 display driver does not implement the DRI2 extension?