From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Nugent Date: Fri, 22 Oct 1999 01:39:19 +0000 Subject: Re: interrupt conflict with sound and video? Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-sound@vger.kernel.org On Thu Oct 21 1999 at 22:34, "Peter John Cameron" wrote: > I've got a voodoo 3000 video card and an integrated Creative SoundBlaster Hmm... sounds familiar :) > AudioPCI 64V. These work without problems in win98. However, no sound is > forthcoming in Linux RH 6.1 (& 6.0) (apart from an odd click here and > there). > > I've just noticed that win98 reports the voodoo card as having an IRQ of 11. > The SoundBlaster also has an IRQ of 11. On the other hand, the legacy sound > device has IRQ 7. > > In Linux, the voodoo has IRQ 11 and the soundcard (automatically detected as > an ensoniq 1371) is also given IRQ 11. I assume that you've done: cat /proc/interrupts cat /proc/pci cat /proc/dma cat /proc/ioports and other such things. PCI cards can happily share the same interrupt, no problem. That's one of the big advantages in going from isa -> pci and what you are seeing is certainly not your problem. > Is this why I get no sound? IRQ 7 is free on my Linux system, so how should No idea. > I go about changing the sound card's IRQ from 11 to 7? Would such a change Don't bother. No. > affect how sound works in win98? More to the point, would it solve my lack > of Linux sound? No, not at all. In fact, it may make things worse if you start trying to manually assign interrupts. Besides, if I recall correctly, irq7 is (sometimes) used by the parport. > Someone suggested moving the PCI cards around in the slots. The sound card > is integrated onto the motherboard, so this means I have to physically move > the voodoo card? Is this the only solution? Could be worth trying. Make sure that your bios is not doing anything to the IRQs. I have banshee/v3 systems with esoniq pci sound cards (1370 and 1371 chipsets... for various reasons I actually prefer the 1370). It all works nicely here. (Redhat 5.2, 6.0 and now 6.1). Cheers Tony