Broke the sound output via HDMI. A few days ago. FreeBSD alex.super 10.1-PRERELEASE FreeBSD 10.1-PRERELEASE #10 r271013: Wed Sep 3 18:26:57 KRAT 2014 alex at alex.super:/usr/obj/usr/src/sys/ALEX amd64 cat /dev/sndstat Installed devices: pcm0: <NVIDIA (0x0016) (HDMI/DP 8ch)> (play) pcm1: <NVIDIA (0x0016) (HDMI/DP 8ch)> (play) pcm2: <NVIDIA (0x0016) (HDMI/DP 8ch)> (play) pcm3: <NVIDIA (0x0016) (HDMI/DP 8ch)> (play) pcm4: <Realtek ALC888 (Rear Analog 7.1/2.0)> (play/rec) default pcm5: <Realtek ALC888 (Front Analog)> (play/rec) pcm6: <Realtek ALC888 (Rear Digital)> (play/rec) ls /dev/dsp* /dev/dsp0.1 /dev/dsp1.0 /dev/dsp2.1 /dev/dsp3.1 /dev/dsp4.0 /dev/dsp5.0 /dev/dsp6.0 cat somefile > /dev/dsp??? worked only with /dev/dsp4.0 (pcm4: <Realtek ALC888 (Rear Analog 7.1/2.0)> (play/rec) default)