Soundcard not detected, although previously ok

From: philip (philip_at_striplin.co.uk)
Date: 02/12/05

  • Next message: Richard Lyons: "unable to lose wallet!" 
    Date: Sat, 12 Feb 2005 11:10:45 +0000
To: debian-user@lists.debian.org

    I'm running Debian Sarge with 2.6.8 kernel. There are two sound devices
    attached, the onboard Realtek chip and a TV card.

    Until this week, both were detected OK. I had to put an explicit line
    in /etc/modprobe.d/sound

    options snd-via82xx index=0
    options snd-bt87x index=1

    to ensure that the Realtek is treated as the default (otherwise I had to
    run alsaconf every boot to force it to treat the realtek as default).
    With those lines in place, Alsamixer would then work with the Realtek
    chip (and so would everything else).

    However, this no longer works. If run manually, alsaconf seems to
    detect the card OK, but doesn't write anything about the card into
    modules.conf or anywhere else that I can see. Alsamixer only sees the
    bt87x, which is not a lot of use. KDE has reverted to "device not
    found" message.

    I've been taking the updates fairly regularly, but I'm not aware of
    anything else that has changed. Sound still behaves fine if I boot the
    machine in Windows XP, so the chip itself seems fine.

    Any ideas about how to go about diagnosing what's gone wrong this time?

    Thanks

    Phil 

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