Hi, On Sun, Oct 10, 2021 at 12:40:00PM +0200, Diederik de Haas wrote: > On Sunday, 10 October 2021 10:40:09 CEST Jaroslav Kysela wrote: > > > Unfortunately this change broke multichannel audio on my Rock64 device > > > running Debian. My Rock64 is connected to my AVR (Pioneer SC-1224) via a > > > HDMI cable. > > This looks like an user space configuration problem. > > I have placed ALSA card definitions (I think) from LibreELEC on my system from > https://github.com/LibreELEC/LibreELEC.tv/tree/master/projects/Rockchip/ > filesystem/usr/share/alsa/cards You likely have the paths wrong, see how `simple-card` ends up in the config file path: https://github.com/alsa-project/alsa-ucm-conf/pull/102/files Cheers, -- Guido