I thought I'd check the changelog for 2.6.24 on www.kernel.org (http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.24) and found this: --------------8<---------------------------------------------------------------------------------------------------------------- commit 346ca04d050ac48ceb8e4a6b1c76c2d7fd5d1a6a Author: Johannes Goecke <goecke@upb.de> Date: Mon Sep 10 10:46:52 2007 +0200 PCI: re-enable onboard sound on "MSI K8T Neo2-FIR" On the "MSI K8T Neo2-FIR" board the BIOS disables the onboard soundcard, if a second PCI soundcard is present. This patch sets the korrect register bit to enable the onboard sound. Removed old code in /drivers/pci/quirks.c that only checks for the PCI-ID and fires on any Board with VIA 8237. New code in /arch/i386/pci/fixup.c checks the DMI-tables and only runs on the specific board. --------------8<---------------------------------------------------------------------------------------------------------------- My board is an MSI K8TM ILSR so this sounds a promising thing to look at... will post back if I have any luck, in case anybody else is interested. Steve On 20/04/2008, Stephen Wilkinson <sw8511@gmail.com> wrote:
Thanks Karolina,
I'd noticed that too, that the kernel (from 2.6.17 til 2.6.23) detected the on-board sound card even when it was set to "disabled" in the BIOS. I double checked the BIOS setting, and it is definitely enabled.
Before kernel 2.6.17 I couldn't get the two cards working simultaneously... hmm, I wonder if a "feature" (read bug!) that made my setup work has been fixed!
Can the on-board be disabled by the presence of another sound card (over-riding the BIOS setting)?
Steve
On 20/04/2008, Karolina Lindqvist <karolina.lindqvist@kramnet.se> wrote:
söndagen den 20 april 2008 skrev Stephen Wilkinson:
Does anyone have any suggestions as to why this may have stopped working in moving from 2.6.23 to 2.6.24? Is it no longer possible to run two sound cards together?
I got the same problem with my (only) built-in VIA sound chip. From kernel 2.6.24 and onwards, the chip has to be enabled in the bios. I had it disabled before. Check your bios settings, and enable the card if it is disabled.
Before linux ignored bios settings, but it look likes it does not do that anymore.
Karolina