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Audio Issues

post #1 of 9
Thread Starter 
Gonna start postin in a linux forum soon instead of bothering folks here.

I'm having some serious audio issues with ubuntu 10.04. I have a single coaxial cable going from my PC to my receiver. Audio seems to ALWAYS be hit or miss. I thought I had it working the other day, didn't change a thing, but now my digital audio is gone again; And the analog only seems to work every now and then too. I thought when things worked and you don't change anything they're suppose to continue to work. Not so in linux it seems.

I have no idea where to begin. I've been messing around and reading about audio for I guess a week now and nothing seems to make this heap of junk just "work".

lshw:
Code:
description: Audio device
          product: MCP55 High Definition Audio
          vendor: nVidia Corporation
          physical id: 6.1
          bus info: pci@0000:00:06.1
          version: a2
          width: 32 bits
          clock: 66MHz
          capabilities: pm msi ht bus_master cap_list
          configuration: driver=HDA Intel latency=0 maxlatency=5 mingnt=2
          resources: irq:21 memory:fe024000-fe027fff
aplay -l:
Code:
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: AD198x Analog [AD198x Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 1: AD198x Digital [AD198x Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
Any help would be appreciated. I'm stumped. There doesn't seem to be a way to have both work for XBMC
    
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post #2 of 9
try messing around with the profile settings. under system>preferences>sound, then the hardware tab. i think the default is analog stereo duplex, but you can change it to surround or digital and get better quality. i have to change this when switching from headphones to 5.1 channel surround speakers.
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post #3 of 9
I have had similar problems thanks to udev. Yes, if you don't change anything it should load up the same every time, right?

Not for udev. It will load devices in a constantly changing order unless you specify the order the modules should be loaded. For me (because I am on Arch), all I need to do was to get my main sound card modules to load up first by placing them in the front of the order in my rc.conf file. I haven't had any problems since.

HOWEVER, since you are using pulse in Ubuntu, I wonder if it still bugs out because the order switches in alsa. I think the best way to fix your problem is by forcing the modules for all your sound devices to load, and not letting Ubuntu try and recognize which ones should load and in what order. For this, you might want to ask someone who has experience with this in Ubuntu.


EDIT: Upon reading your list of devices, you should realize that that "device 0" is going to be the sound device that you hear sound out of. The easiest way to force which one is going to be device 0 is by creating an ~/.asoundrc which forces the card you want playing to be the card you want playing. At least... I think that is how you fix it.
Edited by Rothen - 5/22/11 at 5:46pm
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post #4 of 9
Thread Starter 
Quote:
Originally Posted by eloverton2 View Post
try messing around with the profile settings. under system>preferences>sound, then the hardware tab.
Have done this a LOT. And I mean a LOT.

Quote:
Originally Posted by Rothen View Post
EDIT: Upon reading your list of devices, you should realize that that "device 0" is going to be the sound device that you hear sound out of. The easiest way to force which one is going to be device 0 is by creating an ~/.asoundrc which forces the card you want playing to be the card you want playing. At least... I think that is how you fix it.
I've tried writing a ~/.asoundrc a few times but it never did seem to work unfortunately. I think that's the right path though and will continue to try to figure it out.

Thanks
    
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post #5 of 9
What are you using for a sound server, if anything? Remember that Ubuntu's PulseAudio implementation is horrible, and that if you intend to use PulseAudio, you shouldn't use Ubuntu, and vice versa.
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post #6 of 9
lol weren't we just talking about this the other day?

here's another potential ubuntu user.. probably out the door unless we can get this straightened out.

unfortunately i have no real suggestion... ubuntu blew it big time when they decided to implement pulseaudio, very half assed job, even more half assed than my work.

Don't quote me on this, but I would say your best bet is to properly purge pulseaudio and get plain old alsa going. Or jump to a similar distro that does not use or has properly implemented pulseaudio. Using those little control panel apps isn't going to do a damn thing when the underlying code has a bug list a mile long.
Edited by lloyd mcclendon - 5/22/11 at 9:39pm
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post #7 of 9
aplay -l tells you the exact problem, it's only picking up your HDA from the Nvidia graphics card. Unless that is your onboard but for some reason I highly doubt that. If it is, then we just need to make .asoundrc and things should be fine. If not, you have to get sound to show up before it will work.
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post #8 of 9
Thread Starter 
Gonna make one more attempt with an /.asoundrc
If that does'...........

The heck with it, i'm just gonna use fedora. I'm not liking ubuntu at all.
    
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post #9 of 9
It's fair. I've never liked Ubuntu much.
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