From Bugzilla Helper: User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20051111 Firefox/1.5 Description of problem: Hardware is an MAudio Revolution 7.1 using the ice1724 driver. aplay produces errors unless I boot with the acpi=off kernel option. However, even with this option I get no sound output. I've checked the mixer and changed the volume still nothing. There are similar bugs like this logged against FC. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. 2. 3. Additional info:
*** Bug 179683 has been marked as a duplicate of this bug. ***
Have you updated to the most recent available BIOS version available for your motherboard? If not, please do so and post the results of using sound after the upgrade. Thanks!
This is a relatively old system. The last BIOS update was in 2001. The solution was (relatively) simple. The sound card was sharing an IRQ with my ethernet card. I swapped PCI slots and re-enabled ACPI and sound now works as it should. It doesn't seem like a shared IRQ should completely prevent playing audio, so I don't know if this is a bug or a limitation of ALSA.
ACPI support in machines of that vintage is notoriously buggy. If your system works now (or with ACPI disabled), that is probably the best we can do. I'm glad you got it working!