Hi, yesterday i was testing with Linux 5.13-rc3 on my Raspberry Pi 4 B (multi_v7_defconfig) and i'm getting the following errors during boot: [ 25.947494] vc4_hdmi fef00700.hdmi: ASoC: error at snd_soc_dai_startup on fef00700.hdmi: -19 [ 25.947512] MAI: soc_pcm_open() failed (-19) [ 25.947883] vc4_hdmi fef00700.hdmi: ASoC: error at snd_soc_dai_startup on fef00700.hdmi: -19 [ 25.947891] MAI: soc_pcm_open() failed (-19) [ 25.948566] vc4_hdmi fef00700.hdmi: ASoC: error at snd_soc_dai_startup on fef00700.hdmi: -19 [ 25.948577] MAI: soc_pcm_open() failed (-19) [ 26.500049] vc4_hdmi fef00700.hdmi: ASoC: error at snd_soc_dai_startup on fef00700.hdmi: -19 [ 26.500065] MAI: soc_pcm_open() failed (-19) [ 26.500608] vc4_hdmi fef00700.hdmi: ASoC: error at snd_soc_dai_startup on fef00700.hdmi: -19 [ 26.500617] MAI: soc_pcm_open() failed (-19) [ 26.502339] vc4_hdmi fef00700.hdmi: ASoC: error at snd_soc_dai_startup on fef00700.hdmi: -19 [ 26.502353] MAI: soc_pcm_open() failed (-19) [ 26.502569] vc4_hdmi fef00700.hdmi: ASoC: error at snd_soc_dai_startup on fef00700.hdmi: -19 [ 26.502578] MAI: soc_pcm_open() failed (-19) Rootfs: Raspberry Pi OS 32 bit (April 2021) But according to aplay -l both hdmi devices have been registered. Does anyone have seen this, too? Best regards Stefan
