I just upgraded from kernel 2.6.10-gentoo-r7 (amd64) to 2.6.11-gentoo-r2, and am now having a strange problem with my sound system. I have a 4-speaker system attached to the ALC850 audio controller integrated into my mobo (Asus A8V Deluxe), and am using the VIA 82xxx ALSA (1.08) driver built into the kernel. I have the 'duplicate front channel' option selected in my mixer, but I am only getting sound from THREE of the four speakers--i'm missing the right rear. I've checked alsamixer to make sure both left and right rear are at full volume and unmuted, and I've emerged the latest version of the alsa userland (in my case just alsa-utils 1.08 and alsaplayer). This problem does not occur with any 2.6.10 or earlier kernel that I try, but it does occur with both 2.6.11-gentoo-r2 and vanilla 2.6.11. It also occurs with both alsaplayer and arts-based applications like noatun and the KDE sound system. Any suggestion would be greatly appreciated. Thanks, Jason Harmening Reproducible: Always Steps to Reproduce: 1.Boot into a 2.6.11 kernel from development-sources or gentoo-dev-sources 2.Play any audio file Actual Results: Sound comes from both front speakers but only left rear speaker. All four speakers work in 2.6.10 and earlier. Expected Results: Emit sound through all four speakers. Portage 2.0.51.19 (default-linux/amd64/2004.3, gcc-3.4.3-20050110, glibc-2.3.4.20050125-r0, 2.6.11 x86_64) ================================================================= System uname: 2.6.11 x86_64 AMD Athlon(tm) 64 Processor 3500+ Gentoo Base System version 1.6.9 Python: dev-lang/python-2.3.4-r1 [2.3.4 (#1, Feb 24 2005, 19:29:42)] dev-lang/python: 2.3.4-r1 sys-devel/autoconf: 2.59-r6, 2.13 sys-devel/automake: 1.7.9-r1, 1.8.5-r3, 1.5, 1.4_p6, 1.6.3, 1.9.5 sys-devel/binutils: 2.15.92.0.2-r4 sys-devel/libtool: 1.5.10-r4 virtual/os-headers: 2.6.8.1-r3 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CFLAGS="-march=athlon64 -O2 -pipe -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/lib/mozilla/defaults/pref /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=athlon64 -O2 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/Linux/distributions/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="amd64 X acpi alsa arts berkdb bitmap-fonts cdr crypt cups curl f77 fam flac font-server foomaticdb fortran gif gpm gtk imagemagick ipv6 java jp2 jpeg kde lzw lzw-tiff motif mozilla multilib ncurses nls oggvorbis opengl oss pam perlpng python qt readline ssl tcpd tiff truetype truetype-fonts type1-fonts usb userlocales xml2 xmms xpm xrandr xv zlib" Unset: ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LDFLAGS, PORTDIR_OVERLAY
not a cable problem? :)
Strange, I have this problem on completely different hardware. It works fine again in 2.6.11-mm3. Trying to find the specific fix...
Fixed in gentoo-dev-sources-2.6.11-r4
