Linux Sound Card HDMI problems
1. How can I change the default audio device from command line?
- Normally Gui of Ubuntu allows you to do that (System->Preferences->Sound), like the default input/output device and setting the volume.
If that not works
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2. Use The AlsaMixer
F1 – Help
F2 – System Information
F6 – Select Sound Card
Esc – Exit the menu
3. Show the all of the sound devices
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Other Option list cards
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4. Change it from GRUB
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5. Change the config files and test it by Command Line
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Reconfigure again for sound-base
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Restart PC test again, It works on my pc.
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This test is very important to find which sound card you need to use, 1, and 3 is important first is Device other is port.