[PLUG] SB Live's Revenge

[Alex Docauer]

Coming from a user of SB Live under Linux, I would say it doesn't make a lick of
difference what IRQ the SB Live is on.  I believe PCI devices are automatically
mapped to free IRQ's by the BIOS upon boot and the drivers should be able to find
the device no matter what.  In fact, I think it's impossible for two PCI devices to
have an IRQ conflict as you can map multiple devices to the same IRQ.  The only
problem is when you have too many ISA devices and they eat up all the IRQ's before
the PCI's get a chance.  I thought with PCI, the days of IRQ conservation were
over.  If we didn't need to provide ISA backwards compatibility, numbered IRQ's
could be eliminated completely.  Anyway, I would look elsewhere to solve the
problem.

Alex

Paul Kuliniewicz wrote:

> Remember how I couldn't get my SB Live! working in Red Hat 6.2 (now
> 7.0)?  I think I may have found the source of the problem, although I need
> help fixing it.
>
> According to Windows 2000, my SB Live! is on IRQ 9 and has an I/O range of
> 0xDF80-0xDF9F.  Since the sound works in Windows, I'll assume this is the
> correct configuration.
>
> However, if I do a dmesg in Linux, I find the following two lines in the
> output:
>
> Creative EMU10K1 PCI Audio Driver, version 0.6, 16:53:07 Aug 22 2000
> emu10k1: EMU10K1 rev 7 model 0x8031 found, IO at 0xdf80-0xdf9f, IRQ11
>
> Apparently, emu10k1 mistakenly thinks the IRQ for the SB Live! is 11, where
> it should actually be 9.  This would definitely seem to be the problem as
> to why sound doesn't work in Linux even though everything loads
> correctly.  My questions is how do I tell it to use IRQ 9 instead of
> 11?  The sndconfig utility that comes with Red Hat doesn't prompt me for an
> IRQ when I select SB Live! from its menu (and it segfaults if I select any
> other type of SoundBlaster).
>
> I'm sure all I have to do is edit a line in a config file somewhere, but
> which one?  If I can override the default setting, everything ought to work OK.
>
> Thanks in advance.  One of these days I'll be able to play MP3s in Linux....
>
> ____________________________________________________
> The Purdue Linux Users' Group (PLUG) mailing list.
> plug mailing list  -  plug@csociety.purdue.edu
> http://csociety.ecn.purdue.edu/mailman/listinfo/plug