How can I change the default audio device port?

Question

i want to set my audio device:hdmi/display port 4 to be the default one.Im on ubuntu 14.04lts 64bits with mate desktop.right now i have to manually change it every time i reboot my pc.NOW TO BE CLEAR BECAUSE PEOPLE DONT SEEM TO SEE THE DIFFERENCE: my device is ALREADY the default one and working just fine .. its just not the right PORT by default.

here is the info on my device:

>> 1 sink(s) available. * index: 20 name: <alsa_output.pci-0000_01_00.1.hdmi-surround-extra3> driver: <module-alsa-card.c> flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY state: SUSPENDED suspend cause: IDLE priority: 9050 volume: 0: 100% 1: 100% 2: 100% 3: 100% 4: 100% 5: 0% 0: 0.00 dB 1: 0.00 dB 2: 0.00 dB 3: 0.00 dB 4: 0.00 dB 5: -inf dB balance 0.00 base volume: 100% 0.00 dB volume steps: 65537 muted: no current latency: 0.00 ms max request: 0 KiB max rewind: 0 KiB monitor source: 21 sample spec: s16le 6ch 48000Hz channel map: front-left,front-right,rear-left,rear-right,front-center,lfe Surround 5.1 used by: 0 linked by: 0 configured latency: 0.00 ms; range is 0.50 .. 113.33 ms card: 0 <alsa_card.pci-0000_01_00.1> module: 5 properties: alsa.resolution_bits = "16" device.api = "alsa" device.class = "sound" alsa.class = "generic" alsa.subclass = "generic-mix" alsa.name = "HDMI 3" alsa.id = "HDMI 3" alsa.subdevice = "0" alsa.subdevice_name = "subdevice #0" alsa.device = "9" alsa.card = "0" alsa.card_name = "HDA NVidia" alsa.long_card_name = "HDA NVidia at 0xf3080000 irq 17" alsa.driver_name = "snd_hda_intel" device.bus_path = "pci-0000:01:00.1" sysfs.path = "/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card0" device.bus = "pci" device.vendor.id = "10de" device.vendor.name = "NVIDIA Corporation" device.product.id = "0e0b" device.string = "hdmi:0,3" device.buffering.buffer_size = "65280" device.buffering.fragment_size = "32640" device.access_mode = "mmap+timer" device.profile.name = "hdmi-surround-extra3" device.profile.description = "Digital Surround 5.1 (HDMI)" device.description = "HDA NVidia Digital Surround 5.1 (HDMI)" alsa.mixer_name = "Nvidia GPU 41 HDMI/DP" alsa.components = "HDA:10de0041,10438422,00100100" module-udev-detect.discovered = "1" device.icon_name = "audio-card-pci" ports: hdmi-output-3: HDMI / DisplayPort 4 (priority 5600, latency offset 0 usec, available: yes) properties: device.icon_name = "video-display" device.product.name = "DENON-AVAMP " active port: <hdmi-output-3>

thank you for your time

alex

Solution

This page worked for me: Change default sound device

Comments

[sekelus]

it does not aply to me, my problem is the port not the device

[Noki]

Each port should be it's own device.

[sekelus]

my device have 4 port... no the other way around, anyway i read the post you linked and did not find any solution to my problem

[Noki]

When I run aplay -l I see 4 HDMI ports along with the ports on my motherboard. Each port is considered a device. Perhaps your issue is with your driver?

[sekelus]

oh ok but how can i know wich one is the port 4 ?**** List of PLAYBACK Hardware Devices **** card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3] Subdevices: 1/1 Subdevice #0: subdevice #0

[Noki]

Use trial and error if it is unclear, I'm no expert on this but I have looked into it before and there are lots of resources on this. If you still get nowhere try and narrow your problem down further and post again. You'll figure it out eventually.

[sekelus]

ok thanks you i will try 0-10 until i find the right one

[Noki]

Post again if you find exactly what was wrong, someone else may find it useful. Good luck.

[sekelus]

It was exactly as you said. TIL each port on a device is considered a device itself.