ALSA audio output in VLC 2.2.1 is completely broken because of a bug in VLC. The patch in the URL fixes this issue. I am not able to find any upstream bug report, however there is debian bug #801448 where the fix is mentioned. $ vlc -vvv hdhr.mkv [...] [00000000026b79b8] core audio output debug: inserting 467 zeroes [00000000026b79b8] core audio output debug: restart requested (2) [00000000026b79b8] core audio output debug: restarting output... [00000000026b79b8] alsa audio output error: cannot open ALSA device "iec958:CARD=C920,DEV=0": No such file or directory [00000000026b79b8] core audio output error: module not functional [...]
I've built VLC with alsa enabled and pulseaudio disabled, set my preferences to "ALSA audio output", and my device to, "HDA Intel PCH, ALC269VC Analog Default Audio Device" and sound is working fine. I'll attach my debug output in the next post. Can you provide more info on how you're triggering the issue? Are you starting VLC then changing the device through the QT4 GUI then running into the issue? Also, please post the output of "emerge --info vlc". Thanks, Nick
Created attachment 419870 [details] alsa_debug.out This is what I see when playing audio via ALSA -- sound works fine, no errors. The patch is very specific (i.e. all it seems to be doing is changing behavior on menu selection for the QT4 menu only) so I want to understand what's going on and if it's a wider issue before bringing it in.
(In reply to Nick Andrade from comment #1) > I've built VLC with alsa enabled and pulseaudio disabled, set my preferences to "ALSA audio output", and my device to, "HDA Intel PCH, ALC269VC Analog Default Audio Device" and sound is working fine. Perhaps, as mentioned in the Debian bug this is KDE-specific (no idea how that would work, but maybe). I am using Plasma 5. > Can you provide more info on how you're triggering the issue? Just running vlc. $ vlc filename.ext > Are you starting VLC then changing the device through the QT4 GUI then running into the issue? Nope, just running vlc. Not doing anything other than that. > Also, please post the output of "emerge --info vlc". Portage 2.2.26 (python 2.7.11-final-0, default/linux/amd64/13.0/desktop/plasma, gcc-5.3.0, glibc-2.22-r1, 4.3.0-ck.0 x86_64) ================================================================= System Settings ================================================================= System uname: Linux-4.3.0-ck.0-x86_64-Intel-R-_Core-TM-_i7-4771_CPU_@_3.50GHz-with-gentoo-2.2 KiB Mem: 8127492 total, 5728172 free KiB Swap: 4194300 total, 4194300 free Timestamp of repository gentoo: Sat, 19 Dec 2015 17:00:01 +0000 sh bash 4.3_p42 ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1 distcc 3.2rc1 x86_64-pc-linux-gnu [disabled] ccache version 3.2.4 [disabled] app-shells/bash: 4.3_p42::gentoo dev-java/java-config: 2.2.0::gentoo dev-lang/perl: 5.22.0::gentoo dev-lang/python: 2.7.11-r1::gentoo, 3.4.3-r6::gentoo dev-util/ccache: 3.2.4::gentoo dev-util/cmake: 3.4.1::gentoo dev-util/pkgconfig: 0.29::gentoo sys-apps/baselayout: 2.2::gentoo sys-apps/openrc: 0.19.1::gentoo sys-apps/sandbox: 2.10::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69-r1::gentoo sys-devel/automake: 1.4_p6-r2::gentoo, 1.11.6-r1::gentoo, 1.13.4::gentoo, 1.14.1::gentoo, 1.15-r1::gentoo sys-devel/binutils: 2.25.1-r1::gentoo sys-devel/gcc: 4.9.3::gentoo, 5.3.0::gentoo sys-devel/gcc-config: 1.8::gentoo sys-devel/libtool: 2.4.6-r1::gentoo sys-devel/make: 4.1-r1::gentoo sys-kernel/linux-headers: 4.3::gentoo (virtual/os-headers) sys-libs/glibc: 2.22-r1::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 crossdev location: /usr/local/overlays/crossdev masters: gentoo hawkthorne location: /usr/local/overlays/hawkthorne masters: gentoo hdhomerun location: /usr/local/overlays/hdhomerun masters: gentoo kde location: /usr/local/overlays/kde sync-type: git sync-uri: https://anongit.gentoo.org/git/proj/kde.git masters: gentoo local location: /usr/local/portage masters: gentoo mrueg location: /usr/local/overlays/mrueg sync-type: git sync-uri: https://anongit.gentoo.org/git/dev/mrueg.git masters: gentoo obs-studio-overlay location: /usr/local/overlays/obs sync-type: git sync-uri: https://github.com/saintdev/obs-studio-overlay.git masters: gentoo partclone location: /usr/local/overlays/partclone masters: gentoo sage-on-gentoo location: /usr/local/overlays/sage-on-gentoo masters: gentoo steam-overlay location: /usr/local/overlays/steam-overlay sync-type: git sync-uri: https://github.com/anyc/steam-overlay.git masters: gentoo Installed sets: @qt5-essentials ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/easy-rsa /usr/share/gnupg/qualified.txt /usr/share/themes/oxygen-gtk/gtk-2.0 /usr/share/themes/oxygen-gtk/gtk-3.0" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php7.0/ext-active/ 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Created attachment 419872 [details] Debug output before patch
Created attachment 419874 [details] Debug output after patch
Created attachment 419876 [details] Debug output before patch Oops, uploaded the wrong log.
Nathan, sorry for the delay in getting back to you on this. I checked and VLC-2.2.2 has the patch and is now in unstable. I can backport to 2.2.1-r1 if you'd like, but my recommendation would be to just go to 2.2.2. Let me know your thoughts.
(In reply to Nick Andrade from comment #7) > Nathan, sorry for the delay in getting back to you on this. I checked and > VLC-2.2.2 has the patch and is now in unstable. I can backport to 2.2.1-r1 > if you'd like, but my recommendation would be to just go to 2.2.2. Let me > know your thoughts. I noticed. Personally, I am on unstable so the bug is effectively closed for me. I figured it would be good to leave it open until 2.2.1 is patched or 2.2.2 makes it to stable.
vlc-2.2.4 is stable.
