[gentoo-user] another strange alsa problem

[Matthias Langer]

I'm using alsa for years now and it has always been fine; especially it
has always been possible without any problems to have multiple apps
running that access the sound card. For example i could start audacious
to play some music and to totem and watch a movie _with_ sound; or play
some music and start a game etc. .... Yesterday, i noticed, that this is
no longer possible: For example, if i try to play a mp3 in gmplayer
while running audacious i get:

alsa-init: using device default
alsa-lib: pcm_dmix.c:914:(snd_pcm_dmix_open) unable to open slave
alsa-init: playback open error: Invalid argument
Could not open/initialize audio device -> no sound.

Now the funny thing is, that the same works as root; so i guess that
some permissions are not set correctly (note that my everyday user is in
the audio group) and perhaps, but this is only one possible explanation,
this is because i've upgraded to sys-fs/udev-103 recently ...

any ideas ?

btw, this is my sound-card: "Creative Labs SB Live! EMU10k1"

Portage 2.1.1-r2 (default-linux/x86/2006.1/desktop, gcc-4.1.1,
glibc-2.4-r4, 2.6.18-gentoo-r3 i686)
=================================================================
System uname: 2.6.18-gentoo-r3 i686 AMD Athlon(tm) XP 2400+
Gentoo Base System version 1.12.6
Last Sync: Thu, 07 Dec 2006 01:20:01 +0000
distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632)
[disabled]
app-admin/eselect-compiler: [Not Present]
dev-java/java-config: 1.3.7, 2.0.30
dev-lang/python:     2.4.3-r4
dev-python/pycrypto: 2.0.1-r5
dev-util/ccache:     [Not Present]
dev-util/confcache:  [Not Present]
sys-apps/sandbox:    1.2.17
sys-devel/autoconf:  2.13, 2.60
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2
sys-devel/binutils:  2.16.1-r3
sys-devel/gcc-config: 1.3.13-r4
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.17-r2
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=athlon-xp -O2 -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo /etc/texmf/web2c"
CXXFLAGS="-march=athlon-xp -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig collision-protect distlocks metadata-transfer
sandbox sfperms strict"
GENTOO_MIRRORS="ftp://ftp.sh.cvut.cz/MIRRORS/gentoo/gentoo "
LANG="en_US.utf8"
LC_ALL="en_US.utf8"
LINGUAS="en de"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times
--compress --force --whole-file --delete --delete-after --stats
--timeout=180 --exclude='/distfiles' --exclude='/local'
--exclude='/packages'"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://192.168.0.1/gentoo-portage"
USE="x86 3dnow 3dnowext X a52 aac acpi aiglx alsa audiofile avahi beagle
berkdb bitmap-fonts bzip2 cairo cdr cli cracklib crypt css cups dbus
dlloader dri dvd dvdr dvdread eds elibc_glibc emboss encode evo exif fam
fbcon ffmpeg firefox flac fortran gdbm gif ginac gmp gnome gphoto2 gpm
gstreamer gtk gtk2 hal iconv icq input_devices_keyboard
input_devices_mouse ipv6 isdnlog java javascript jpeg jpeg2k
kernel_linux lcms ldap libg++ linguas_de linguas_en mad mikmod mime mmx
mmxext mono mozsvg mp3 mpeg msn nautilus ncurses nfs nls nptl nptlonly
nsplugin nvidia offensive ogg oggvorbis opengl pam pcre pdf perl
plotutils png posix ppds pppd python qt3 qt4 quicktime readline real
reflection ruby sdl session sockets spell spl sqlite3 sse ssl subtitles
svg tcpd tetex theora threads tiff truetype truetype-fonts type1-fonts
udev unicode usb userland_GNU vcd video_cards_nvidia vorbis win32codecs
wma xine xml xorg xv xvid zlib"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS,
PORTAGE_RSYNC_EXTRA_OPTS

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