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net_keeper
Tux's lil' helper
Joined: 06 Jul 2003
Posts: 108
Location: Earth
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 Posted: Sun Jul 20, 2003 8:15 am Post subject: TIP: Make ALSA work with Kernel 2.6 |
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Well,
Ie got a lot of problems with ALSA and Kernel 2.6 .
I've acieved a solution,
Compile the sound card not as modul , but as BUILT-IN.
No more problems, no more dealing with sound, no more /dev/dsp disapper or invisible devices..  |
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floam
Veteran
Joined: 27 Oct 2002
Posts: 1067
Location: Vancouver, WA USA
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| Posted: Mon Jul 21, 2003 5:26 am Post subject: |
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Alsa will make your kernel pretty big, and despite what the poster said, you can still compile it as a moudle. The alsasound init script probably won't work, but its not a biggie, just add the modules to your /etc/modules.autoload.d/kernel-2.[56]. Also add alsactl store to local.stop and alsactl restore to your local.start so that your volume settings get saved over a reboot.
Here's the sound part of my /etc/modules.autoload.d/kernel-2.[56] for reference: | Code: | snd-emu10k1
snd-pcm-oss |
snd-emu10k1 is for my card, snd-pcm-oss turns on the oss compatability layer.
Note while I only have those two modules in my moudles.autoload file, they will load other modules, shown here in the relevant part of my lsmod ouput: | Code: | Module Size Used by
snd_pcm_oss 48548 0
snd_mixer_oss 16768 1 snd_pcm_oss
snd_emu10k1 63364 0
snd_rawmidi 20256 1 snd_emu10k1
snd_pcm 86244 2 snd_pcm_oss,snd_emu10k1
snd_timer 21700 1 snd_pcm
snd_seq_device 6536 2 snd_emu10k1,snd_rawmidi
snd_ac97_codec 48132 1 snd_emu10k1
snd_page_alloc 7876 2 snd_emu10k1,snd_pcm
snd_util_mem 3328 1 snd_emu10k1
snd_hwdep 6816 1 snd_emu10k1
snd 44708 10 snd_pcm_oss,snd_mixer_oss,snd_emu10k1,snd_rawmidi,snd_pcm,snd_timer,snd_seq_device,snd_ac97_codec,snd_util_mem,snd_hwdep
soundcore 7168 1 snd |
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Ant
Tux's lil' helper
Joined: 31 Oct 2002
Posts: 129
Location: Australia
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| Posted: Wed Jul 23, 2003 10:05 pm Post subject: |
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Here is my version of the alsavolume script for use with kernel 2.6 instead of alsasound. Basically it is just a cut down version of alsasound.
I added it to my default runlevel. This seemed a good place for it based on my fairly limited runlevel knowledge. If someone thinks it should go into a different runlevel let me know.
| Code: |
#!/sbin/runscript
# $Header: $
#
# Gentoo users: add this script to 'default' run level.
# ==================================================
#
# alsavolume This shell script takes care of restoring and storing
# the ALSA mixer sound settings.
#
# This script requires the /usr/sbin/alsactl program from the alsa-utils package.
#
# Paraphrased by Anthony Higgins from the alsasound init.d script
# Copyright (c) by Jaroslav Kysela <perex@suse.cz>
#
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
alsactl=/usr/sbin/alsactl
asoundcfg=/etc/asound.state
depend() {
need bootmisc localmount
after modules
}
start() {
# Restore sound.
if [ -d /proc/asound ]; then
if [ ! -r $asoundcfg ]; then
ewarn "No mixer config in $asoundcfg, you have to unmute your card manual!"
else
if [ -x $alsactl ]; then
num_cards=`modprobe -c|awk -F= '/options snd cards_limit/ {print $2;}'`
if [ "$num_cards" == "" ]; then
$alsactl -f $asoundcfg restore
else
let num_cards--
for i in `seq 0 $num_cards`; do
$alsactl -f $asoundcfg restore $i
done
fi
else
eerror -e "ERROR: alsactl not found!"
fi
fi
fi
}
stop() {
if [ ! -d /proc/asound ]
then
eerror "ALSA driver is not loaded."
return 0
fi
#
# store driver settings
#
if [ -x $alsactl ]; then
$alsactl -f $asoundcfg store
else
ewarn -n "WARNING: !!!alsactl not found!!! "
fi
}
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Regards,
Ant. |
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Opteron
n00b
Joined: 09 Mar 2003
Posts: 54
Location: Sweden, Husqvarna
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| Posted: Thu Jul 24, 2003 12:27 pm Post subject: |
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Hmm after I had compiled my kernel (2.6.0_test1) and did emerge alsa-drivers it complains about something, I guess that The alsa that comes with 2.6.0_test1 is newer than the one in portage?
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Ant
Tux's lil' helper
Joined: 31 Oct 2002
Posts: 129
Location: Australia
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| Posted: Thu Jul 24, 2003 3:01 pm Post subject: |
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Yes. In ye old days, alsa had to install it's own kernel modules (drivers) since it was a separate package to the kernel. Now alsa is merged in with the kernel so you will no longer need the alsa-drivers.
Woot!! I've been waiting for years.
If it really wants to install alsa-drivers because of a dependancy you could fake it with the.. hmmm.. I think it's emerge -i alsa-drivers?? Check man emerge as I'm on a debian machine at the moment.
Ant. |
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Squinky86
Retired Dev
Joined: 25 Mar 2003
Posts: 309
Location: Alabama, USA
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| Posted: Thu Jul 24, 2003 6:34 pm Post subject: |
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| Ant wrote: | | If it really wants to install alsa-drivers because of a dependancy you could fake it with the.. hmmm.. I think it's emerge -i alsa-drivers?? |
| Code: |
emerge --inject media-sound/alsa-driver-0.9.5-r2
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replace the version of the alsa-driver if you want to fake a different version
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Vache
n00b
Joined: 17 Oct 2002
Posts: 45
Location: Springboro, Ohio
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| Posted: Sun Jul 27, 2003 7:37 pm Post subject: XMMS |
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Two issues using kernel 2.6.0 + XMMS + ALSA (compiled in). alsa-xmms's ebuild needs alsa-driver (can I just inject?), and when I am using XMMS + ALSA for output, none of my visual plugins for XMMS react to the music, nor does the EQ work Any ideas?
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Fool me once, shame on you. Fool me twice... you can't fool me again |
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SonetSST
n00b
Joined: 17 Jan 2003
Posts: 46
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| Posted: Mon Jul 28, 2003 6:36 am Post subject: ALSA |
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| dunno whats up with you guys... I've always wanted to be able to build alsa into the kernel instead of as a module. I did that, and it works great... Though i still have alsa-driver installed for my 2.4 series kernel... anyway, why use the ebuild when it's right there in the kernel? |
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b0fh
Guru
Joined: 16 Jun 2003
Posts: 426
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| Posted: Mon Jul 28, 2003 8:37 am Post subject: |
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| I've got also for my card in the kernel, but when I start xmms for example and try to play, I get no sound and the app hangs... Any ideas? |
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Yinchie
Apprentice
Joined: 05 Mar 2003
Posts: 179
Location: The Netherlands
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| Posted: Tue Jul 29, 2003 5:19 am Post subject: |
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- inccorrect soundcard module?
- you forgot to unmute alsa? |
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bsolar
Bodhisattva
Joined: 12 Jan 2003
Posts: 2764
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| Posted: Tue Jul 29, 2003 5:30 am Post subject: |
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I have problem with permissions with ALSA built-in (and I'm sure with 2.5.something I had no problems).
Everything in /dev/sound and /dev/snd misses rw permissions for the audio group so only root is able to use it. After a massive chmod 660 also users member of audio are ok but I haven't found a way to set the permissions automatically (short a chmod script starting at boot).
As modules ALSA works like it did with 2.4.21.
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I may not agree with what you say, but I'll defend to the death your right to say it. |
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Vache
n00b
Joined: 17 Oct 2002
Posts: 45
Location: Springboro, Ohio
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| Posted: Tue Jul 29, 2003 8:22 am Post subject: |
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I have 2.6.0-test1.
I'm using XMMS for mp3 playback, but without xmms-alsa emerged (which needs alsa-driver, which I don't really want to have if the kernel has alsa anyway) I can't get any audio out. Grip won't play CDs (?), but Xine will (using gxine). Xmms won't play either. Agh.
It boils down to... do I need alsa-driver emerged or can I just inject it? (I can live without XMMS for mp3/audio playback).
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Fool me once, shame on you. Fool me twice... you can't fool me again |
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b0fh
Guru
Joined: 16 Jun 2003
Posts: 426
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| Posted: Tue Jul 29, 2003 8:35 am Post subject: |
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I think xmms doesn't support alsa from its own.
You could try emerging alsa-xmms and configure alsa to use this output plugin.
Or:
emerge alsa-oss, this is sort of oss-emulator for alsa. Rember to re-emerge alsa after that with +oss in USE. |
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st.john
Tux's lil' helper
Joined: 25 Nov 2002
Posts: 126
Location: Melbourne, Australia
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| Posted: Sat Aug 02, 2003 10:44 am Post subject: |
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| bsolar wrote: | I have problem with permissions with ALSA built-in (and I'm sure with 2.5.something I had no problems).
Everything in /dev/sound and /dev/snd misses rw permissions for the audio group so only root is able to use it. After a massive chmod 660 also users member of audio are ok but I haven't found a way to set the permissions automatically (short a chmod script starting at boot).
As modules ALSA works like it did with 2.4.21. |
Have a look in /etc/security/console.perms you might need to change the line
<console> 0600 <sound> 0600 root.audio |
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