Hi, Symptoms are the same as with alsa-driver : bug #120217. gentoo-sources 2.6.15-r1 is affected too. The suggested patch works for me (gentoo-sources 2.6.15-r1) and should be added to the gentoo-sources ebuild. diff /usr/src/linux-2.6.15-gentoo-r1/sound/pci/emu10k1/emumixer.c emumixer.c 758a759 > "Front Playback Volume", Reguards.
Fixed in gentoo-sources-2.6.15-r3 (genpatches-2.6.15-6)
Also fixed in hardened-sources-2.6.14-r6 (genpatches-2.6.14-11).