Hi Laurent > Strange. I will test it with my H3 ULCB. Thanks. I could noticed it via kernel log of sound, because it needs HDMI-Sound. You can find it almost last. OK case ... [ 4.058402] ALSA device list: => [ 4.061416] #0: rcar-sound ... NG case ... [ 4.026208] ALSA device list: => [ 4.029254] No soundcards found. ... Thank you for your help !! Best regards --- Kuninori Morimoto