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Old 10-29-2015, 02:47 PM   #1
Pip Mac
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Registered: Oct 2015
Location: UK
Distribution: Linux mint
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usb DAC not working after first shutdown

linux mint 64bit on sony VGN-N31Z laptop. not recognising Arcam irDAC (usb2 setting on DAC) after FIRST complete shutdown. Works fine until shutdown and again after complete re install. This site is sort of on that thread

- so it seems there is corrupt USB settings on shutdown. Most odd as the previous rDAC worked perfectly

If this is any help

pip@pip-VGN-N31Z-W ~ $ cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xdc240000 irq 44
1 [A20 ]: USB-Audio - ARCAM USB Audio 2.0
ARCAM ARCAM USB Audio 2.0 at usb-0000:00:1d.7-1, high spee

Help please!
Old 02-14-2016, 12:51 PM   #2
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Registered: Feb 2016
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Smile HI

Today I have the same problem here, but i know how to fix it.
i know i am late but if you still waiting the answer , Email me:

Last edited by stevenhy; 02-14-2016 at 12:52 PM.
Old 02-22-2016, 06:51 AM   #3
Pip Mac
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Registered: Oct 2015
Location: UK
Distribution: Linux mint
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Smile Arcam irDAC not recognised by Linux mint

problem solved by steven _ a huge thank you. this was his email....

As i know this a Ubuntu bugs, After reboot, Ubuntu will mute your usb dac without changing the GUI settings once.
so, you need to change it by yourself at the CLI

First,open your terminal than type : alsamixer

Then you will see the sound setting of your default sound card,
After that, press the F6 key, select you usb dac device
after that , you will see that your sound device has muted (showing "mm")
Use your arrow key to move your selection ,then press "m" to un-mute them.

So you will see that the mm was replaced by "00"
OK, All done, press the esc key to exit, reboot.

Old 10-20-2017, 01:19 PM   #4
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Registered: Oct 2017
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I've been scratching parts of my anatomy for over a week after my irDac stopped working in a Linux Mint system for no apparent reason. Steven's solution works perfectly. I never even knew there was an alsamixer.... I used to think Windows 10 was bad but now... Good job it's cheap!

Thanks for posting the solution


Last edited by kevinthecat; 10-20-2017 at 01:20 PM.
Old 10-21-2017, 10:03 AM   #5
Registered: Jul 2017
Location: King's Lynn, UK
Distribution: Nowt but Puppies....
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Actually, this appears to be standard behaviour across the board in Linux.

I run mostly Puppy, and occasionally AntiX. I've got a 15-yr old Dell Inspiron lappie, where the headphone socket is completely worn-out. Since my soldering skills are, um, shall we say 'non-existent' , I decided to try the external sound card route, since I have available USB ports, and that would give me new headphone and microphone sockets.

The sound card works fine, but I, too, had to go into 'alsamixer' and unmute it first, followed by fine-tuning the remaining settings. Pup doesn't use PulseAudio, incidentally, so ALSA is standard fare anyway.....but you still need to select the correct card before the ball starts rolling!

So, it appears this business of 'automuting' would seem to be standard implementation in Linux, when using anything other than the built-in, originally-configured hardware.



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