I broke my boot partition and had to rebuild it. Both cmdline and config.txt are gone and I had to start over. The rest of the system is untouched. Unfortunately, I forgot how they were configured and now aplay (and therefore mpd) find no soundcards.
I think I missconfigured my /boot/config.txt. My goal is to have a resolution of 800x480 60p and to have mpd as well as kodi use an external USB soundcard.
dtparam=audio=on gpu_mem=128 hdmi_cvt=800 480 60 6 hdmi_group=2 hdmi_mode=87
Unfortunately I still get no sound:
sudo aplay -l results in
aplay: device_list:268: no soundcards found...
Since I didn't touch any config files outside /boot, I think the error must be in the file posted above.
Update: I was able to reproduce the behavior on a different Raspi. There I backed up the files config and cmdline, but exactly the same thing happened.
Update: The USB-attached wireless keyboard is not working either. It may be an USB-related problem. What's strange is that all devices show up in lsusb.
What is the problem with it? Thanks in advance!