iB::Topic::How is sound configured in boot?

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Topic: How is sound configured in boot?

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curaga

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Joined: Feb. 2007

Posted: Feb. 22 2007,15:48

I looked into the knoppix-autoconfig and other bootscripts, tweaked and got it to boot 'bout 7s faster. But I don't understand how sound is configured, in knoppix-autoconfig a variable $SOUNDCARD just appears in the echo command, without being set anywhere..

The sound card is an opl3-sa2 isa card, and the autoconfig recognizes it, but doesn't load the correct driver for it. Now I have the rmmod and modprobe commands in my bootlocal.sh. I'd like to disable looking for sound cards and load the correct driver myself to speed booting even more up.

Comparison: boot from zero to logging in to ready to be used (X)
2 years old xp machine (3Ghz): 2min 1s
124mhz P1 DSL machine: 1min 46s

The goal for the dsl machine: 1min

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roberts

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Posted: Feb. 22 2007,16:10

SOUNDCARD is set from ALSA_CARD which is set if a parameter is set when using alsa boot option. SOUNDCARD is just an echo display variable. It is ALSA_CARD that is used with the call to /etc/init.d/alsa-autoconfig

For a traditional hard drive install, you might want to try to comment out the call to /etc/init.d/alsa-autoconfig once your alsa sound has been setup and working.

curaga

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Joined: Feb. 2007

Posted: Feb. 22 2007,17:39

But I don't have alsa, it's plain oss...

That's the weird part. SOUNDCARD is set only if using alsa, yet it displays the soundcard name on boot....

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There's no such thing as life. Those mean little jocks invented it ;)
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Windows is not a virus. A virus does something!

roberts

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Posts: 4983
Joined: Oct. 2003

Posted: Feb. 22 2007,17:48

If the autodetection of your oss sound card is interferring with your after boot /opt/bootlocal entry, then perhaps you should add nosound to your append section.

curaga

Group: Members
Posts: 2163
Joined: Feb. 2007

Posted: Feb. 23 2007,15:11

No it isn't interfering, it just loads a wrong driver which i then have to remove and then load the correct driver..

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There's no such thing as life. Those mean little jocks invented it ;)
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Windows is not a virus. A virus does something!

4 replies since Feb. 22 2007,15:48

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Damn Small Linux Board » Damn Small Linux » HD Install » How is sound configured in boot?