Comment 10 for bug 418448

Work around:

Since it is because of the recently added SSE optimization code in http://git.0pointer.de/?p=pulseaudio.git;a=commitdiff;h=7086784573e9e6c92d4c34404f18891c2d19872a you can work around it by apt-getting the source, removing the SSE-related, 2-line if block at the end of src/pulsecore/cpu-x86.c and rebuilding with "dpkg-buildpackage -rfakeroot -b" Just install the pulseaudio and libpulse0 .debs afterwards. After doing this, sound started working for me again.