A recent upgrade to alsa-ucm-conf 1.2.5 has broken audio on the Librem 5. At this time there is no fix, however there is a workaround that can be achieved by commenting out a single line in /usr/share/alsa/ucm2/ucm.conf:
$ sudo sed -i 's|Include.libgen.File|# Include.libgen.File|' /usr/share/alsa/ucm2/ucm.conf
If a new upgrade for alsa-ucm-conf is available before a proper fix is in place, the workaround will need to be re-applied.
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