Sound card on duel boot computer

Sound card on duel boot computer

Post by zcarnut » Thu, 31 Aug 2000 04:00:00



I have a computer with Linux Mandrake 7.0 and Win98 on it. Everything was
just fine until I installed a USB device in Windows. I had to enable USB in
my bios. This has caused my sound card to "disappear" in LINUX. It quit
working and a probe can't even find the card anymore. The card is a SB
AWE64. I have tried to set it up manually and when I test it it says that
the port is busy. Anyone know of a way around this????? I really don't want
to have to change my bios every time I boot into LINUX.

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Sound card on duel boot computer

Post by Robert E. Blai » Thu, 31 Aug 2000 04:00:00


Most likely your USB change ate the IRQ for the sound card or moved it.
Everytime you add something like the USB support you need to review what IRQ
got assigned to whom and review the conf.modules and the isapnp.conf details
(both files are in /etc) to make sure they all agree after the change with the
actual hardware assignments.  A simple step by step approach is:

  1. Before you make the change print a copy of /proc/pci and /proc/ioports
     and /proc/interrupts
  2. After you make the change do the same
       1.  Observe what has changed and review the configuration files for any
          required updates, make them and reboot

There is always a chance that you will find that you have maxed out on IRQ's
that devices can use and then you need to make some tough choices.  Probably
you aren't there if everything works under windows.

Another approach is to observe the windows assignments of this stuff and if
yuo have PNP hardware just mimick it in  the configuratin files.

Good luck!


> I have a computer with Linux Mandrake 7.0 and Win98 on it. Everything was
> just fine until I installed a USB device in Windows. I had to enable USB in
> my bios. This has caused my sound card to "disappear" in LINUX. It quit
> working and a probe can't even find the card anymore. The card is a SB
> AWE64. I have tried to set it up manually and when I test it it says that
> the port is busy. Anyone know of a way around this????? I really don't want
> to have to change my bios every time I boot into LINUX.

> --
> Posted via CNET Help.com
> http://www.help.com/

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