Subject: RE: [linux-audio-user] ALSA 0.9.1 on IBM ThinkPad T20
From: Mark Knecht (mknecht_AT_controlnet.com)
Date: Mon Mar 31 2003 - 21:57:52 EEST
Greg,
Check out PlanetCCRMA for getting RH 8.0 updated on a laptop. Fernando
has a specialized kernel I believe.
http://www-ccrma.stanford.edu/planetccrma/software/
Cheers,
Mark
> -----Original Message-----
> From: linux-audio-user-admin_AT_music.columbia.edu
> [mailto:linux-audio-user-admin_AT_music.columbia.edu]On Behalf Of Greg
> Reddin
> Sent: Monday, March 31, 2003 10:41 AM
> To: linux-audio-user_AT_music.columbia.edu
> Subject: [linux-audio-user] ALSA 0.9.1 on IBM ThinkPad T20
>
>
> Hey all,
>
> I'm sort of a Linux newbie. I've been using Linux pretty much
> exclusively for a little over a month. I've used and developed on
> Unix for several years, so much of it is familiar to me.
>
> Anyway, I got ALSA up and running fine on my desktop machine, but am
> having problems with my laptop. I searched the web for days and
> can't seem to find consistent information, so I wonder if you guys
> could help.
>
> My laptop is an IBM Thinkpad T20 with a "Cirrus Logic CS-4614/22/24
> CrystalClear SoundFusion Audio Accelerator" soundcard. I'm running a
> fairly "vanilla" installation of RedHat 8.0, meaning I didn't
> reconfigure the kernel or anything like that. The kernel version is
> 2.4.18-14. The OSS driver for cs46xx was installed, and I believe
> the sound test worked during installation. But since then, audio has
> not worked at all. XMMS will play,and you can see the meters
> popping, but no sound comes out of the speakers or headphones.
>
> I downloaded the ALSA 0.9.1 tarballs and ran through the
> installations. The first problem I ran into was unresolved symbols
> due to symbol versioning in the kernel. I fixed that by adding the
> following to the alsa-driver Makefile:
>
> ifdef CONFIG_MODVERSIONS
> CPPFLAGS += -include
> /usr/src/linux-2.4.18-14/include/linux/modversions.h
> endif
>
> So, I did a make clean, reran the ./configure, make, make install,
> ./snddevices, and installed alsa-lib and alsa-util. At some point I
> had to rmmod the cs46xx OSS driver because it complained that it was
> in use. I also chmod'ed the /dev files as the doc suggested.
>
> I used gnome-alsamixer to unmute the channels and set levels. At
> first alsaplayer would play a file (.wav or .mp3) and the meters
> would show activity, but no sound would be present. Now, when I try
> to run alsaplayer, play, or xmms I get an error message that says
> "Cannot open device: /dev/dsp".
>
> So has anyone gotten ALSA 0.9.1 to work on this kernel? Should I use
> a different ALSA package or a different kernel? Any suggestions
> would be greatly appreciated.
>
> Thanks,
> Greg Reddin
>
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