I am working on setting up an HTPC running Ubuntu 12.10. I have been searching for hours for a solution to get 5.1 surround sound working through HDMI, to no avail. I do not know a lot about audio standards or how they are managed in Linux. Right now, I am able to get what I think is 2 channel audio through HDMI.
In PulseAudio Volume Control, I only get the following two profile options for HDMI:
- Digital Stereo (HDMI) Output + Analog Stereo Input
- Digital Stereo (HDMI) Output
The computer is connected via HDMI to the TV which in turn is connected to the speaker system.
Possibly relevant computer specs:
- Shuttle XH61V (Intel H61 Chipset)
- Onboard Realtek ALC662 5.1 channel High Definition Audio
- Intel Core i3-3225 with Intel HD Graphics 4000
Being as the HDMI is built into the motherboard, I don't really know whether the ALC662, the motherboard or the Intel Graphics is controlling it.
I have tried running "speaker-test -c 6" and Front Left, Center, Front Right all produce static but Rear Right, Rear Left and LFE all either silent or are much quieter.
pacmd list-cards gives me the following:
Code:
Welcome to PulseAudio! Use "help" for usage information.
>>> 1 card(s) available.
index: 0
name: <alsa_card.pci-0000_00_1b.0>
driver: <module-alsa-card.c>
owner module: 4
properties:
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xf7d00000 irq 51"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.name = "6 Series/C200 Series Chipset Family High Definition Audio Controller"
device.form_factor = "internal"
device.string = "0"
device.description = "Built-in Audio"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
profiles:
output:analog-stereo: Analog Stereo Output (priority 6000)
output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6060)
output:analog-surround-40: Analog Surround 4.0 Output (priority 700)
output:analog-surround-40+input:analog-stereo: Analog Surround 4.0 Output + Analog Stereo Input (priority 760)
output:analog-surround-41: Analog Surround 4.1 Output (priority 800)
output:analog-surround-41+input:analog-stereo: Analog Surround 4.1 Output + Analog Stereo Input (priority 860)
output:analog-surround-50: Analog Surround 5.0 Output (priority 700)
output:analog-surround-50+input:analog-stereo: Analog Surround 5.0 Output + Analog Stereo Input (priority 760)
output:analog-surround-51: Analog Surround 5.1 Output (priority 800)
output:analog-surround-51+input:analog-stereo: Analog Surround 5.1 Output + Analog Stereo Input (priority 860)
output:iec958-stereo: Digital Stereo (IEC958) Output (priority 5500)
output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (priority 5560)
output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5400)
output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (priority 5460)
input:analog-stereo: Analog Stereo Input (priority 60)
off: Off (priority 0)
active profile: <output:hdmi-stereo+input:analog-stereo>
sinks:
alsa_output.pci-0000_00_1b.0.hdmi-stereo/#0: Built-in Audio Digital Stereo (HDMI)
sources:
alsa_output.pci-0000_00_1b.0.hdmi-stereo.monitor/#0: Monitor of Built-in Audio Digital Stereo (HDMI)
alsa_input.pci-0000_00_1b.0.analog-stereo/#1: Built-in Audio Analog Stereo
ports:
analog-output: Analog Output (priority 9900, available: unknown)
properties:
analog-output-headphones: Headphones (priority 9000, available: no)
properties:
analog-input-microphone-front: Front Microphone (priority 8500, available: no)
properties:
analog-input-microphone-rear: Rear Microphone (priority 8200, available: no)
properties:
analog-input-linein: Line In (priority 8100, available: no)
properties:
iec958-stereo-output: Digital Output (S/PDIF) (priority 0, available: unknown)
properties:
hdmi-output-0: HDMI / DisplayPort (priority 5900, available: yes)
properties:
And aplay -L gives me this:
Code:
default
Playback/recording through the PulseAudio sound server
sysdefault:CARD=PCH
HDA Intel PCH, ALC662 rev1 Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
Front speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Digital
IEC958 (S/PDIF) Digital Audio Output
hdmi:CARD=PCH,DEV=0
HDA Intel PCH, HDMI 0
HDMI Audio Output
dmix:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
Direct sample mixing device
dmix:CARD=PCH,DEV=1
HDA Intel PCH, ALC662 rev1 Digital
Direct sample mixing device
dmix:CARD=PCH,DEV=3
HDA Intel PCH, HDMI 0
Direct sample mixing device
dsnoop:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
Direct sample snooping device
dsnoop:CARD=PCH,DEV=1
HDA Intel PCH, ALC662 rev1 Digital
Direct sample snooping device
dsnoop:CARD=PCH,DEV=3
HDA Intel PCH, HDMI 0
Direct sample snooping device
hw:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
Direct hardware device without any conversions
hw:CARD=PCH,DEV=1
HDA Intel PCH, ALC662 rev1 Digital
Direct hardware device without any conversions
hw:CARD=PCH,DEV=3
HDA Intel PCH, HDMI 0
Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
HDA Intel PCH, ALC662 rev1 Analog
Hardware device with all software conversions
plughw:CARD=PCH,DEV=1
HDA Intel PCH, ALC662 rev1 Digital
Hardware device with all software conversions
plughw:CARD=PCH,DEV=3
HDA Intel PCH, HDMI 0
Hardware device with all software conversions
Thank you in advance for any help on this!
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