I have just packaged, for personal use, the latest lyx release 1.3.1 on i686 hardware platform and debian/unstable system
http://linfe.it/OpenLab/DebianPackages/unstable/contrib/lyx_1.3.1-1_i386.deb ( libc6 (>= 2.3.1-1), libforms1 are required ). -- Pol
