On Sun, 22 Jul 2018 17:38:50 +0200, Christopher Head wrote: > > Hi folks, > I have an Asus P8H77-I motherboard. On board is an Intel HDA connected > to a Via VT1708S codec. There are a number of analogue ports. In > addition to them, on the back panel are an HDMI port (from an > integrated GPU) and a TOSLINK port. The motherboard manual isn’t totally > clear on whether the HDMI port can also carry sound or only video, but > Windows claims to be able to send sound there, so probably yes. I don’t > use the integrated GPU, though. > > Here’s the problem: > $ aplay -l > **** List of PLAYBACK Hardware Devices **** > card 0: PCH [HDA Intel PCH], device 0: VT1708S Analog [VT1708S Analog] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 0: PCH [HDA Intel PCH], device 2: VT1708S Alt Analog [VT1708S Alt > Analog] Subdevices: 0/1 > Subdevice #0: subdevice #0 > card 0: PCH [HDA Intel PCH], device 3: VT1708S Digital [VT1708S Digital] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] > Subdevices: 1/1 > Subdevice #0: subdevice #0 Please look at the card numbers here. The HDMI output is provided from a different HD-audio controller (of GPU), so it's assigned to a different card. If you pass only "hdmi" to applications, it implicitly assumes the default card 0. For playing via HDMI on your machine, you'd need to pass as "aplay -L" shows, one of the following: > hdmi:CARD=NVidia,DEV=0 > HDA NVidia, HDMI 0 > HDMI Audio Output > hdmi:CARD=NVidia,DEV=1 > HDA NVidia, HDMI 1 > HDMI Audio Output > hdmi:CARD=NVidia,DEV=2 > HDA NVidia, HDMI 2 > HDMI Audio Output > hdmi:CARD=NVidia,DEV=3 > HDA NVidia, HDMI 3 > HDMI Audio Output The device number depends on the HDMI port you plugged in. The above can be in a shorter form like "hdmi:1,0", too. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
