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keba
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Joined: 02 Jun 2006
Posts: 328
Location: Switzerland
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 Posted: Sat Aug 04, 2007 7:23 am Post subject: only 1 channel on USB "Creative SoundBlaster Live 24-bi |
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Hello,
I have a new external (USB) "Creative SoundBlaster Live 24-bit" but I only get 1 Channel to work. This means Alsamixer only shows 1 channel for output (PCM). Kmix show 1 channel for input and one for output.
I'm using kernel 2.6.18 and I want to use the built-in alsa for this. So I have built snd-usb-audio as a module and entered the following lines into /etc/modules.d/alsa before doing a "modules-update" and rebooting:
| Code: | alias snd-card-1 snd-usb-audio
alias sound-slot-1 snd-card-1
options snd-usb-audio index=1
alias sound-service-1-0 snd-mixer-oss
alias sound-service-1-3 snd-pcm-oss
alias sound-service-1-12 snd-pcm-oss
options snd cards_limit=2 |
After having searched the internet for hours (I have seen [url]http://gentoo-wiki.com/HOWTO_Install_Creative_Sound_Blaster_Live_24-bit_external_(usb)[/url] and applied it as far as possible since I wanted my internal sound card to still work as usual). speaker-test gives me this
| Code: | # speaker-test -Dplug:surround51 -c6
speaker-test 1.0.14
Playback device is plug:surround51
Stream parameters are 48000Hz, S16_LE, 6 channels
Using 16 octaves of pink noise
ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable
Broken configuration for playback: no configurations available: Argument invalide
Setting of hwparams failed: Argument invalide |
I don't know what to do any more. can you please help me? thanks in advance
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keba
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Joined: 02 Jun 2006
Posts: 328
Location: Switzerland
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| Posted: Sat Aug 04, 2007 2:04 pm Post subject: |
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I thought it might have something to do with the old kernel and its alsa, but 2.6.22-r2 still doesn't help...
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keba
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Joined: 02 Jun 2006
Posts: 328
Location: Switzerland
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| Posted: Mon Aug 06, 2007 7:46 am Post subject: |
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This definitely is a driver problem. This device needs a so-called "boot-up quirk" which the current driver doesn't have. Ubuntu-devs have made a patch so that it uses the same quirk the Audigy uses (http://osdir.com/ml/linux.ubuntu.devel.kernel.general/2006-11/msg00002.html) but it only gives control over the LEDs: Power, CMSS and "Dolby Digital" (which doesn't exist on the device (I mean DD)). Sound settings don't change with that patch. Can someone try to make a boot-up quirk? I have NO knowledge as to anything like that. You'd have to explain it to me which would take much too long I guess.
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