I installed Debian Stretch (Kernel 4.8.0-1) multi-arch net-inst successfully to the eMMC, with Grub, and dual-boot to the original OS (where the sound does work).Well, with half the peripherals. This question is about the HDMI-Sound. I tried:$ aplay -laplay: device_list:268: no soundcards found...$ lspci... Z36xxx/Z37xxx Series Graphics & Display (rev 0f)$ xrandr --output HDMI-1 --set audio on(Screen flashes once, but no change apart from `xrandr -q --props` output)# dmesg | grep -iE 'audio|so?u?nd|sst|pcm|hda|hdmi'intel_sst_acpi 800860F28:00: no matching machine driver found# dpkg -l | grep -iE 'intel|nonfree' | awk '{printf $2 }'firmware-intel-sound firmware-linux-nonfree firmware-misc-nonfree i965-va-driverintel-microcode iucode-tool libdrm-intel xserver-xorg-video-intelGrepping -iE 'audio|sound|sst|0F28' my decompiled ACPI DSDT like described here resulted in 5 blocks of 3 lines with Intel Audio devices, including some with HAD0F28 Intel HDMI Audio driver. The others are 80860F28, ADMA0F28, TIMC0F28, AMCR0F28. Curiously, there also were 4 lines like 10EC5640 Realtek I2S Audio Codec.This is of these HDMI Compute Stick Clones. Mine is from CSL, called PC on a Stick, but there are many different re-branders of the same same Intel Bay Trail Quad-Core SOC platform. Mine is the fan-less variant without the separate audio-jack. This is one of those 32Bit UEFI with a 64Bit Processor beasts.There is a dsdt acpi patch and a kernel patch from early 2015 floating around for a similar model, but I have not found out, if they apply to me, and/or whether they are already applied. (My UEFI Date is 09/2016, and my kernel is 4.8)Another similar device seems to be the Meegopad m1, and the ODM name seems to be Quanta NH1. Mine has a problematic Broadcom Wifi brcmfmac43430 though.How get I get the sound to work, or where do I go from here?
Enable/Diagnose HDMI sound failure on Intel Bay Trail Atom Z3735F Compute Stick
linux;audio;acpi;intel graphics;hdmi