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PostPosted: Sat Jan 10, 2004 7:28 pm 
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Joined: Wed Jan 07, 2004 5:21 pm
Posts: 116
The ALSA site shows that my card is supported. And I found the file /lib/modules/extra/alsa/snd-ad1848.o which seems to be the one I need loaded. However, when I looked in /etc/modutils, the only alsa file I found was 1alsa. This file contained the following:
path[]=/lib/modules/extra/alsa
depfile=/lib/modules/extra/modules.dep
generic_stringfile=/lib/modules/extra/modules.generic_string
pcimapfile=/lib/modules/extra/modules.pcimap

The file did not contain any aliases. Do I add the alias to it. There was another file I found with aliases like yours /etc/init.d/alsa-autoconfig. Would it be ok to change the aliases in the autoconfig file?


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PostPosted: Sat Jan 10, 2004 8:25 pm 
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Joined: Mon Oct 06, 2003 10:38 am
Posts: 4978
Location: Nashville, TN
I'm sorry I was going by how real debian does it, and not how knoppix does it. I could figure it out, but I don't really have time to follow the trail right now. I'm guessing they did all that to make the autodetection work, those lines I stated will be somewhere that somehow get into the modules.conf, but I'm not sure where they put them in knoppix/knoppmyth.


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PostPosted: Sun Jan 11, 2004 12:17 pm 
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Joined: Wed Jan 07, 2004 5:21 pm
Posts: 116
I ended up doing modprobe snd-cs4236 and finally got the video to work. No sound but video looks great.

What do you think could be causing this error with alsamixer.
alsamixer: function snd_ctlopen failed for default: No such file or directory

I tried the following:
#apt-get update
#apt-get install alsa-utils
#alsamixer

But I still get the alsamixer error.


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PostPosted: Sun Jan 11, 2004 1:51 pm 
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Joined: Wed Jan 07, 2004 5:21 pm
Posts: 116
I got the sound working!!! Sounds crappy but its working. I used aumix, raised the volumes levels and it worked.

The quality of the audio is greatly improved when I select enable sound bufferring, but then the video gets choppy (seems to stop every couple of seconds). Is this because the extra audio being saved is causing too much use on the hard drive. Would performance increase if I have the video going to a seperate hard drive?


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PostPosted: Sun Jan 11, 2004 1:58 pm 
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Joined: Mon Oct 06, 2003 10:38 am
Posts: 4978
Location: Nashville, TN
the video really doesn't take that much bandwidth to the harddrive, so I don't think that's it run

hdparm /dev/hda

concidering your harddrive is primary master ide

and see if 32 bit IO and DMA are both at 1 meaning turned on.


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PostPosted: Sun Jan 11, 2004 2:09 pm 
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Joined: Wed Jan 07, 2004 5:21 pm
Posts: 116
Darn, looks like IO_support and using_dma are on:
multcount = 16 (on)
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 1246/255/63, sectors = 20028960, start = 0

Could this be because my 550mhz amd k6-2 is too slow to handle both?

Also, how do I make it so that the sound card module get loaded at startup? Is it insmod snd-cs4236.


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 Post subject:
PostPosted: Mon Jan 12, 2004 9:05 pm 
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Joined: Mon Jan 12, 2004 5:13 am
Posts: 12
So Fustrated, how exactly did you get your sound card to work? When you did modprobe snd-cs4236 did you just type that in a xterm? Or did you enter it into a config file or startup script? I assume I'd replace the "snd-cs4236" with the driver approprate for my card.

I am just having much truble getting alsa to recognize my soundcard (I have never setup sound in Linux before) and have found the alsa-project website nothing but confusing.

Thanks,

Jason


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 Post subject:
PostPosted: Tue Jan 13, 2004 9:31 am 
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Joined: Wed Jan 07, 2004 5:21 pm
Posts: 116
Jason,
I actually got it to work by adding the following lines to /etc/modutils/aliases:
Code:
alias char-major-116 snd
alias char-major-14 soundcore

options snd major=116 cards_limit=4

alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
alias /dev/dsp* snd-pcm-oss

alias snd-card-0 snd-cs46xx

alias snd-slot-0 snd-card-0
alias sound-slot-0 snd-slot-0


Then I ran update-modules (which adds these lines to /etc/modules.conf).
Then I rebooted the machine and poof it recognized my sound card.

What happens when you run alsamixer and aplay. Do you get an error? I think we both might have a problem with alsa not being fully installed.


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 Post subject:
PostPosted: Sun Jan 18, 2004 6:11 pm 
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Joined: Mon Jan 12, 2004 5:13 am
Posts: 12
Sorry, but I gave up with KnoppMyth. I have since installed Fedora Core 1 and followed Jarod's How-to guide and now have my MythTV box almost complete.

At this point I can get live TV, recorded TV, and the MythTV interface on my TV via my PVR-350. Now I just need to do finishing touches such as make MythTV starup automatically when I turn the computer on and I'll be done for now.

Thanks,

Jason


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