$ dmesg | grep HDMI
[ 0.739196] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
[ 19.690510] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input50
[ 19.690597] input: HDA Intel PCH HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input51
[ 19.690690] input: HDA Intel PCH HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input52
[ 19.690816] input: HDA Intel PCH HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input53
[ 19.690907] input: HDA Intel PCH HDMI/DP,pcm=10 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input54
also which desktop environment are you using, it seems that you are with gnome, is that correct?
Here I am with kde plasma though I do not think that this would make any difference.
Nov 07 11:05:07 beast /usr/lib/gdm-x-session[868]: (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event13)
Nov 07 11:05:07 beast /usr/lib/gdm-x-session[868]: (II) No input driver specified, ignoring this device.
Nov 07 11:05:07 beast /usr/lib/gdm-x-session[868]: (II) This device may have been added with another device file.
Nov 07 11:05:07 beast /usr/lib/gdm-x-session[868]: (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event16)
Nov 07 11:05:07 beast /usr/lib/gdm-x-session[868]: (II) No input driver specified, ignoring this device.
Nov 07 11:05:07 beast /usr/lib/gdm-x-session[868]: (II) This device may have been added with another device file.
This messages are also logged for the intel card HDMI devices.
]]>Any clues?
EDIT: After restarting, the NVIDIA sound card was showing again, I don't know why it wasn't being detected, but that's working now. I'm getting the same behavior as theodore when testing each of the possible HDMI outputs, no sound at all, but speaker-test command doesn't show any errors.
]]>Video is working great and I'm very happy with it, but I haven't been able to make the sound work through the monitor's speakers. In pavucontrol I get for all HDMI outputs 'unavailable', and some other 'unavailable' and 'unplugged'. Please help!!
I'm not sure what commands output you may need to diagnose the problem. For now I'm sure aplay -l would be useful.
# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC898 Analog [ALC898 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC898 Digital [ALC898 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
Subdevices: 1/1
Subdevice #0: subdevice #0
Thanks a lot!!
]]>