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Dan Farrell wrote: |
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> On Tue, 27 Feb 2007 20:59:21 +0100 |
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> Jakob Buchgraber <jakob.buchgraber@××××××××××.com> wrote: |
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> |
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> |
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>> b.n. wrote: |
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>> |
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>>> Jakob Buchgraber ha scritto: |
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>>> |
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>>> |
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>>>> Hi! |
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>>>> |
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>>>> I just read about the required ALSA_CARDS variable when using |
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>>>> in-kernel drivers in the Gentoo Newsletter. Since I am using |
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>>>> in-kernel ALSA drivers I would like to know what changed and why |
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>>>> this is required? Is this explained somewhere? I am using |
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>>>> vanilla-sources (not gentoo-sources). So do I need to set |
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>>>> ALSA_CARDS when using vanilla-sources too? |
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>>>> |
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>>>> |
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>>> The GWN seems clear: |
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>>> "for users using the in-kernel drivers, they |
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>>> should now properly set that variable" |
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>>> |
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>>> I think that the other alsa packages must be aware of it. Anyway I |
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>>> think setting it shouldn't harm. |
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>>> |
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>>> m. |
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>>> |
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>>> |
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>>> |
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>> Thank you for your reply! |
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>> |
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>> It's clear to me that setting the variable doesn't harm however I'd |
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>> like to know why exactly. Does anybody have in-detail informations? |
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>> |
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>> Cheers, |
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>> Jay |
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>> |
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> I use the kernel drivers exclusively, and never set ALSA_CARDS or |
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> anything else for that matter. Emerge alsa-utils and turn up the |
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> volume and it always works for me. Maybe there's a different reason |
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> for ALSA_CARDS than I understand. I know the x11 "VIDEO_CARDS" setting |
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> helps not only X, but other programs too, decide which hardware to |
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> support. The same may be true of ALSA_CARDS. I would think though, |
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> that this would be most important for people using the ALSA-supplied |
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> drivers, as in-kernel drivers are selected at kernel configuration |
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> time and alsa-provided drivers must use another way to specify which |
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> sound hardware to support. |
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> |
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|
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For me actually it's enough when gentoo devs say "do it" ;-) |
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..but here's even something else: |
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If you don't set it, then portage sets it for you. Try "emerge --info | |
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grep ALSA" and you'll see that ALSA_CARDS has (may be) all the possible |
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values. If you set it by yourself, it would have only the value [or |
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values] you choose. I prefer the latter. ;-) |
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[*] - in case you have multiple cards |
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-- |
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Best regards, |
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Daniel |
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-- |
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